./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label24.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/Problem11_label24.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 9e6cb12e8c28b48932c83bb2f75d9445aafe92d9 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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 21:44:59,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 21:44:59,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 21:44:59,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 21:44:59,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 21:44:59,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 21:44:59,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 21:44:59,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 21:44:59,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 21:44:59,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 21:44:59,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 21:44:59,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 21:44:59,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 21:44:59,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 21:44:59,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 21:44:59,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 21:44:59,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 21:44:59,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 21:44:59,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 21:44:59,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 21:44:59,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 21:44:59,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 21:44:59,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 21:44:59,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 21:44:59,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 21:44:59,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 21:44:59,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 21:44:59,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 21:44:59,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 21:44:59,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 21:44:59,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 21:44:59,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 21:44:59,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 21:44:59,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 21:44:59,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 21:44:59,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 21:44:59,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 21:44:59,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 21:44:59,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 21:44:59,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 21:44:59,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 21:44:59,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 21:44:59,331 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 21:44:59,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 21:44:59,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 21:44:59,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 21:44:59,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 21:44:59,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 21:44:59,335 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 21:44:59,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 21:44:59,336 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 21:44:59,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 21:44:59,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 21:44:59,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 21:44:59,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 21:44:59,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 21:44:59,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 21:44:59,337 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 21:44:59,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 21:44:59,338 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 21:44:59,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 21:44:59,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 21:44:59,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 21:44:59,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 21:44:59,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:44:59,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 21:44:59,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 21:44:59,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 21:44:59,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 21:44:59,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 21:44:59,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 21:44:59,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 21:44:59,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e6cb12e8c28b48932c83bb2f75d9445aafe92d9 [2021-08-25 21:44:59,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 21:44:59,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 21:44:59,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 21:44:59,615 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 21:44:59,615 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 21:44:59,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2021-08-25 21:44:59,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97e6e9fde/a142a281ac3c4cd6ab55c74fa679b799/FLAG327c9a665 [2021-08-25 21:45:00,150 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 21:45:00,151 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2021-08-25 21:45:00,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97e6e9fde/a142a281ac3c4cd6ab55c74fa679b799/FLAG327c9a665 [2021-08-25 21:45:00,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97e6e9fde/a142a281ac3c4cd6ab55c74fa679b799 [2021-08-25 21:45:00,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 21:45:00,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 21:45:00,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 21:45:00,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 21:45:00,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 21:45:00,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498b34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00, skipping insertion in model container [2021-08-25 21:45:00,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 21:45:00,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 21:45:00,433 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/Problem11_label24.c[7451,7464] [2021-08-25 21:45:00,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:45:00,684 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 21:45:00,735 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/Problem11_label24.c[7451,7464] [2021-08-25 21:45:00,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:45:00,876 INFO L208 MainTranslator]: Completed translation [2021-08-25 21:45:00,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00 WrapperNode [2021-08-25 21:45:00,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 21:45:00,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 21:45:00,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 21:45:00,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 21:45:00,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:00,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:01,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 21:45:01,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 21:45:01,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 21:45:01,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 21:45:01,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:01,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:01,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:01,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:01,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:01,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:01,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:01,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 21:45:01,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 21:45:01,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 21:45:01,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 21:45:01,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (1/1) ... [2021-08-25 21:45:01,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:45:01,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:01,163 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 21:45:01,176 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 21:45:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 21:45:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 21:45:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 21:45:01,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 21:45:02,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 21:45:02,479 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 21:45:02,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:45:02 BoogieIcfgContainer [2021-08-25 21:45:02,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 21:45:02,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 21:45:02,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 21:45:02,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 21:45:02,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:45:00" (1/3) ... [2021-08-25 21:45:02,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae75dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:45:02, skipping insertion in model container [2021-08-25 21:45:02,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:45:00" (2/3) ... [2021-08-25 21:45:02,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae75dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:45:02, skipping insertion in model container [2021-08-25 21:45:02,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:45:02" (3/3) ... [2021-08-25 21:45:02,487 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label24.c [2021-08-25 21:45:02,491 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 21:45:02,491 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 21:45:02,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 21:45:02,528 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 21:45:02,528 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 21:45:02,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 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 21:45:02,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-25 21:45:02,546 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:02,546 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] [2021-08-25 21:45:02,547 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:02,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:02,550 INFO L82 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2021-08-25 21:45:02,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:02,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324023266] [2021-08-25 21:45:02,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:02,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:02,763 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 21:45:02,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:02,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324023266] [2021-08-25 21:45:02,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324023266] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:02,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:02,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:45:02,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910787437] [2021-08-25 21:45:02,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:02,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:02,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:02,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:02,786 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 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 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 21:45:03,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:03,794 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2021-08-25 21:45:03,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:03,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-08-25 21:45:03,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:03,805 INFO L225 Difference]: With dead ends: 776 [2021-08-25 21:45:03,805 INFO L226 Difference]: Without dead ends: 413 [2021-08-25 21:45:03,809 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:03,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-08-25 21:45:03,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2021-08-25 21:45:03,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 0 states have call successors, (0), 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 21:45:03,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2021-08-25 21:45:03,861 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 51 [2021-08-25 21:45:03,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:03,862 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2021-08-25 21:45:03,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 21:45:03,862 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2021-08-25 21:45:03,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-25 21:45:03,866 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:03,866 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, 1, 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 21:45:03,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 21:45:03,867 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:03,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:03,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1424628072, now seen corresponding path program 1 times [2021-08-25 21:45:03,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:03,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090192411] [2021-08-25 21:45:03,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:03,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:03,965 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:03,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:03,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090192411] [2021-08-25 21:45:03,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090192411] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:03,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:03,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:45:03,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903331900] [2021-08-25 21:45:03,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:03,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:03,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:03,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:03,970 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 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 21:45:04,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:04,809 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2021-08-25 21:45:04,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:04,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-08-25 21:45:04,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:04,813 INFO L225 Difference]: With dead ends: 1209 [2021-08-25 21:45:04,813 INFO L226 Difference]: Without dead ends: 800 [2021-08-25 21:45:04,814 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:04,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-08-25 21:45:04,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2021-08-25 21:45:04,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3854961832061068) internal successors, (1089), 786 states have internal predecessors, (1089), 0 states have call successors, (0), 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 21:45:04,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2021-08-25 21:45:04,837 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 119 [2021-08-25 21:45:04,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:04,838 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2021-08-25 21:45:04,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 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 21:45:04,838 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2021-08-25 21:45:04,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-08-25 21:45:04,842 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:04,842 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, 1, 1, 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 21:45:04,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 21:45:04,843 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:04,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:04,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1033925576, now seen corresponding path program 1 times [2021-08-25 21:45:04,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:04,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899867810] [2021-08-25 21:45:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:04,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:04,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:04,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899867810] [2021-08-25 21:45:04,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899867810] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:04,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:04,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:45:04,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590811425] [2021-08-25 21:45:04,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:04,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:04,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:04,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:04,952 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 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 21:45:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:05,725 INFO L93 Difference]: Finished difference Result 1942 states and 2631 transitions. [2021-08-25 21:45:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:05,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-08-25 21:45:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:05,729 INFO L225 Difference]: With dead ends: 1942 [2021-08-25 21:45:05,730 INFO L226 Difference]: Without dead ends: 1157 [2021-08-25 21:45:05,731 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:05,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-08-25 21:45:05,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2021-08-25 21:45:05,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277922077922078) internal successors, (1476), 1155 states have internal predecessors, (1476), 0 states have call successors, (0), 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 21:45:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2021-08-25 21:45:05,750 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 120 [2021-08-25 21:45:05,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:05,751 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2021-08-25 21:45:05,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 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 21:45:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2021-08-25 21:45:05,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-08-25 21:45:05,753 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:05,754 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:45:05,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 21:45:05,754 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:05,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:05,755 INFO L82 PathProgramCache]: Analyzing trace with hash -289166940, now seen corresponding path program 1 times [2021-08-25 21:45:05,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:05,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120467720] [2021-08-25 21:45:05,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:05,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:05,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:05,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120467720] [2021-08-25 21:45:05,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120467720] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:05,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:05,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:05,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202688265] [2021-08-25 21:45:05,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:05,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:05,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:05,831 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 21:45:06,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:06,745 INFO L93 Difference]: Finished difference Result 2691 states and 3515 transitions. [2021-08-25 21:45:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:06,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2021-08-25 21:45:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:06,756 INFO L225 Difference]: With dead ends: 2691 [2021-08-25 21:45:06,756 INFO L226 Difference]: Without dead ends: 1721 [2021-08-25 21:45:06,759 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:06,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-08-25 21:45:06,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1528. [2021-08-25 21:45:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.261296660117878) internal successors, (1926), 1527 states have internal predecessors, (1926), 0 states have call successors, (0), 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 21:45:06,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1926 transitions. [2021-08-25 21:45:06,785 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1926 transitions. Word has length 163 [2021-08-25 21:45:06,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:06,787 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 1926 transitions. [2021-08-25 21:45:06,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 21:45:06,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1926 transitions. [2021-08-25 21:45:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-08-25 21:45:06,790 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:06,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:45:06,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 21:45:06,791 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:06,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:06,792 INFO L82 PathProgramCache]: Analyzing trace with hash -933543605, now seen corresponding path program 1 times [2021-08-25 21:45:06,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:06,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002646005] [2021-08-25 21:45:06,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:06,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:06,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:06,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002646005] [2021-08-25 21:45:06,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002646005] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:06,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:06,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:45:06,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309970766] [2021-08-25 21:45:06,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:06,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:06,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:06,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:06,919 INFO L87 Difference]: Start difference. First operand 1528 states and 1926 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 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 21:45:07,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:07,691 INFO L93 Difference]: Finished difference Result 4158 states and 5316 transitions. [2021-08-25 21:45:07,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:07,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2021-08-25 21:45:07,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:07,728 INFO L225 Difference]: With dead ends: 4158 [2021-08-25 21:45:07,729 INFO L226 Difference]: Without dead ends: 2632 [2021-08-25 21:45:07,731 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:07,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2021-08-25 21:45:07,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2448. [2021-08-25 21:45:07,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.2174090723334696) internal successors, (2979), 2447 states have internal predecessors, (2979), 0 states have call successors, (0), 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 21:45:07,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 2979 transitions. [2021-08-25 21:45:07,774 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 2979 transitions. Word has length 178 [2021-08-25 21:45:07,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:07,775 INFO L470 AbstractCegarLoop]: Abstraction has 2448 states and 2979 transitions. [2021-08-25 21:45:07,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 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 21:45:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 2979 transitions. [2021-08-25 21:45:07,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-08-25 21:45:07,779 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:07,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:45:07,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 21:45:07,780 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:07,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:07,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1329847317, now seen corresponding path program 1 times [2021-08-25 21:45:07,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:07,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555133668] [2021-08-25 21:45:07,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:07,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-08-25 21:45:07,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:07,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555133668] [2021-08-25 21:45:07,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555133668] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:07,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:07,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:45:07,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58933242] [2021-08-25 21:45:07,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:07,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:07,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:07,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:07,895 INFO L87 Difference]: Start difference. First operand 2448 states and 2979 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 21:45:08,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:08,497 INFO L93 Difference]: Finished difference Result 5452 states and 6620 transitions. [2021-08-25 21:45:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:08,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 194 [2021-08-25 21:45:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:08,508 INFO L225 Difference]: With dead ends: 5452 [2021-08-25 21:45:08,508 INFO L226 Difference]: Without dead ends: 3006 [2021-08-25 21:45:08,515 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:08,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2021-08-25 21:45:08,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 3005. [2021-08-25 21:45:08,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 3004 states have (on average 1.2113848202396804) internal successors, (3639), 3004 states have internal predecessors, (3639), 0 states have call successors, (0), 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 21:45:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 3639 transitions. [2021-08-25 21:45:08,602 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 3639 transitions. Word has length 194 [2021-08-25 21:45:08,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:08,603 INFO L470 AbstractCegarLoop]: Abstraction has 3005 states and 3639 transitions. [2021-08-25 21:45:08,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 21:45:08,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 3639 transitions. [2021-08-25 21:45:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-08-25 21:45:08,607 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:08,607 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, 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] [2021-08-25 21:45:08,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 21:45:08,608 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:08,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:08,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1440418757, now seen corresponding path program 1 times [2021-08-25 21:45:08,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:08,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992229857] [2021-08-25 21:45:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:08,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:08,770 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:08,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:08,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992229857] [2021-08-25 21:45:08,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992229857] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:08,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:08,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:45:08,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108301979] [2021-08-25 21:45:08,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:08,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:08,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:08,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:08,778 INFO L87 Difference]: Start difference. First operand 3005 states and 3639 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 21:45:10,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:10,072 INFO L93 Difference]: Finished difference Result 8783 states and 10795 transitions. [2021-08-25 21:45:10,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:10,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 232 [2021-08-25 21:45:10,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:10,087 INFO L225 Difference]: With dead ends: 8783 [2021-08-25 21:45:10,087 INFO L226 Difference]: Without dead ends: 5780 [2021-08-25 21:45:10,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:10,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2021-08-25 21:45:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5404. [2021-08-25 21:45:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 5403 states have (on average 1.2121043864519712) internal successors, (6549), 5403 states have internal predecessors, (6549), 0 states have call successors, (0), 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 21:45:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 6549 transitions. [2021-08-25 21:45:10,166 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 6549 transitions. Word has length 232 [2021-08-25 21:45:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:10,166 INFO L470 AbstractCegarLoop]: Abstraction has 5404 states and 6549 transitions. [2021-08-25 21:45:10,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 21:45:10,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 6549 transitions. [2021-08-25 21:45:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-08-25 21:45:10,169 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:10,169 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, 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] [2021-08-25 21:45:10,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 21:45:10,170 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:10,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:10,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1400544816, now seen corresponding path program 1 times [2021-08-25 21:45:10,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:10,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631944403] [2021-08-25 21:45:10,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:10,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:10,233 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-25 21:45:10,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:10,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631944403] [2021-08-25 21:45:10,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631944403] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:10,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:10,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:10,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564550912] [2021-08-25 21:45:10,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:10,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:10,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:10,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:10,235 INFO L87 Difference]: Start difference. First operand 5404 states and 6549 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 21:45:11,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:11,000 INFO L93 Difference]: Finished difference Result 11919 states and 14623 transitions. [2021-08-25 21:45:11,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:11,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 233 [2021-08-25 21:45:11,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:11,016 INFO L225 Difference]: With dead ends: 11919 [2021-08-25 21:45:11,016 INFO L226 Difference]: Without dead ends: 6885 [2021-08-25 21:45:11,020 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 21:45:11,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6885 states. [2021-08-25 21:45:11,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6885 to 6692. [2021-08-25 21:45:11,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 1.1927962935286205) internal successors, (7981), 6691 states have internal predecessors, (7981), 0 states have call successors, (0), 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 21:45:11,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 7981 transitions. [2021-08-25 21:45:11,106 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 7981 transitions. Word has length 233 [2021-08-25 21:45:11,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:11,107 INFO L470 AbstractCegarLoop]: Abstraction has 6692 states and 7981 transitions. [2021-08-25 21:45:11,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 21:45:11,107 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 7981 transitions. [2021-08-25 21:45:11,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-08-25 21:45:11,110 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:11,110 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, 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] [2021-08-25 21:45:11,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 21:45:11,110 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:11,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:11,111 INFO L82 PathProgramCache]: Analyzing trace with hash 826529202, now seen corresponding path program 1 times [2021-08-25 21:45:11,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:11,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488944228] [2021-08-25 21:45:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:11,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:11,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:11,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488944228] [2021-08-25 21:45:11,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488944228] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:11,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:11,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:11,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709526937] [2021-08-25 21:45:11,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:11,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:11,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:11,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:11,180 INFO L87 Difference]: Start difference. First operand 6692 states and 7981 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 21:45:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:12,419 INFO L93 Difference]: Finished difference Result 14861 states and 17819 transitions. [2021-08-25 21:45:12,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:12,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 243 [2021-08-25 21:45:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:12,442 INFO L225 Difference]: With dead ends: 14861 [2021-08-25 21:45:12,446 INFO L226 Difference]: Without dead ends: 8539 [2021-08-25 21:45:12,452 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:12,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8539 states. [2021-08-25 21:45:12,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8539 to 8534. [2021-08-25 21:45:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8534 states, 8533 states have (on average 1.1736786593226298) internal successors, (10015), 8533 states have internal predecessors, (10015), 0 states have call successors, (0), 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 21:45:12,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 10015 transitions. [2021-08-25 21:45:12,561 INFO L78 Accepts]: Start accepts. Automaton has 8534 states and 10015 transitions. Word has length 243 [2021-08-25 21:45:12,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:12,562 INFO L470 AbstractCegarLoop]: Abstraction has 8534 states and 10015 transitions. [2021-08-25 21:45:12,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 21:45:12,562 INFO L276 IsEmpty]: Start isEmpty. Operand 8534 states and 10015 transitions. [2021-08-25 21:45:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-08-25 21:45:12,565 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:12,565 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:12,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 21:45:12,565 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:12,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1535621630, now seen corresponding path program 1 times [2021-08-25 21:45:12,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:12,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992008637] [2021-08-25 21:45:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:12,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:12,642 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-08-25 21:45:12,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:12,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992008637] [2021-08-25 21:45:12,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992008637] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:12,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:12,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:12,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294495073] [2021-08-25 21:45:12,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:12,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:12,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:12,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:12,644 INFO L87 Difference]: Start difference. First operand 8534 states and 10015 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 21:45:13,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:13,445 INFO L93 Difference]: Finished difference Result 18740 states and 22056 transitions. [2021-08-25 21:45:13,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:13,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 253 [2021-08-25 21:45:13,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:13,469 INFO L225 Difference]: With dead ends: 18740 [2021-08-25 21:45:13,469 INFO L226 Difference]: Without dead ends: 10576 [2021-08-25 21:45:13,479 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 21:45:13,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2021-08-25 21:45:13,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 10190. [2021-08-25 21:45:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10190 states, 10189 states have (on average 1.1690057905584454) internal successors, (11911), 10189 states have internal predecessors, (11911), 0 states have call successors, (0), 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 21:45:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10190 states to 10190 states and 11911 transitions. [2021-08-25 21:45:13,611 INFO L78 Accepts]: Start accepts. Automaton has 10190 states and 11911 transitions. Word has length 253 [2021-08-25 21:45:13,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:13,611 INFO L470 AbstractCegarLoop]: Abstraction has 10190 states and 11911 transitions. [2021-08-25 21:45:13,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 21:45:13,612 INFO L276 IsEmpty]: Start isEmpty. Operand 10190 states and 11911 transitions. [2021-08-25 21:45:13,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-08-25 21:45:13,619 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:13,619 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:13,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 21:45:13,620 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:13,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:13,621 INFO L82 PathProgramCache]: Analyzing trace with hash 943642801, now seen corresponding path program 1 times [2021-08-25 21:45:13,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:13,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017857194] [2021-08-25 21:45:13,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:13,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:13,707 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-08-25 21:45:13,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:13,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017857194] [2021-08-25 21:45:13,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017857194] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:13,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:13,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:13,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675335049] [2021-08-25 21:45:13,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:13,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:13,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:13,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:13,709 INFO L87 Difference]: Start difference. First operand 10190 states and 11911 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 21:45:14,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:14,534 INFO L93 Difference]: Finished difference Result 20567 states and 24033 transitions. [2021-08-25 21:45:14,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:14,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 281 [2021-08-25 21:45:14,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:14,550 INFO L225 Difference]: With dead ends: 20567 [2021-08-25 21:45:14,550 INFO L226 Difference]: Without dead ends: 10563 [2021-08-25 21:45:14,557 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:14,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2021-08-25 21:45:14,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 10557. [2021-08-25 21:45:14,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10557 states, 10556 states have (on average 1.139920424403183) internal successors, (12033), 10556 states have internal predecessors, (12033), 0 states have call successors, (0), 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 21:45:14,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10557 states to 10557 states and 12033 transitions. [2021-08-25 21:45:14,666 INFO L78 Accepts]: Start accepts. Automaton has 10557 states and 12033 transitions. Word has length 281 [2021-08-25 21:45:14,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:14,666 INFO L470 AbstractCegarLoop]: Abstraction has 10557 states and 12033 transitions. [2021-08-25 21:45:14,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 21:45:14,667 INFO L276 IsEmpty]: Start isEmpty. Operand 10557 states and 12033 transitions. [2021-08-25 21:45:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-08-25 21:45:14,675 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:14,675 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, 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, 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] [2021-08-25 21:45:14,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-25 21:45:14,676 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:14,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:14,676 INFO L82 PathProgramCache]: Analyzing trace with hash -2146355781, now seen corresponding path program 1 times [2021-08-25 21:45:14,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:14,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095705225] [2021-08-25 21:45:14,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:14,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:14,755 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-08-25 21:45:14,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:14,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095705225] [2021-08-25 21:45:14,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095705225] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:14,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:14,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:14,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000319463] [2021-08-25 21:45:14,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:14,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:14,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:14,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:14,759 INFO L87 Difference]: Start difference. First operand 10557 states and 12033 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 21:45:15,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:15,550 INFO L93 Difference]: Finished difference Result 23886 states and 27410 transitions. [2021-08-25 21:45:15,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:15,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 314 [2021-08-25 21:45:15,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:15,568 INFO L225 Difference]: With dead ends: 23886 [2021-08-25 21:45:15,569 INFO L226 Difference]: Without dead ends: 13699 [2021-08-25 21:45:15,577 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:15,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13699 states. [2021-08-25 21:45:15,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13699 to 13694. [2021-08-25 21:45:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13694 states, 13693 states have (on average 1.1337179580807712) internal successors, (15524), 13693 states have internal predecessors, (15524), 0 states have call successors, (0), 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 21:45:15,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13694 states to 13694 states and 15524 transitions. [2021-08-25 21:45:15,779 INFO L78 Accepts]: Start accepts. Automaton has 13694 states and 15524 transitions. Word has length 314 [2021-08-25 21:45:15,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:15,779 INFO L470 AbstractCegarLoop]: Abstraction has 13694 states and 15524 transitions. [2021-08-25 21:45:15,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 21:45:15,780 INFO L276 IsEmpty]: Start isEmpty. Operand 13694 states and 15524 transitions. [2021-08-25 21:45:15,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-08-25 21:45:15,790 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:15,791 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, 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, 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] [2021-08-25 21:45:15,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 21:45:15,791 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:15,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:15,792 INFO L82 PathProgramCache]: Analyzing trace with hash 263747274, now seen corresponding path program 1 times [2021-08-25 21:45:15,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:15,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351019677] [2021-08-25 21:45:15,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:15,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:15,886 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-08-25 21:45:15,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:15,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351019677] [2021-08-25 21:45:15,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351019677] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:15,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:15,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:15,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353559179] [2021-08-25 21:45:15,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:15,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:15,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:15,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:15,888 INFO L87 Difference]: Start difference. First operand 13694 states and 15524 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 21:45:16,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:16,671 INFO L93 Difference]: Finished difference Result 30517 states and 34553 transitions. [2021-08-25 21:45:16,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:16,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 322 [2021-08-25 21:45:16,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:16,694 INFO L225 Difference]: With dead ends: 30517 [2021-08-25 21:45:16,694 INFO L226 Difference]: Without dead ends: 17193 [2021-08-25 21:45:16,705 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 21:45:16,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17193 states. [2021-08-25 21:45:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17193 to 17190. [2021-08-25 21:45:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17190 states, 17189 states have (on average 1.1226365698993543) internal successors, (19297), 17189 states have internal predecessors, (19297), 0 states have call successors, (0), 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 21:45:16,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17190 states to 17190 states and 19297 transitions. [2021-08-25 21:45:16,914 INFO L78 Accepts]: Start accepts. Automaton has 17190 states and 19297 transitions. Word has length 322 [2021-08-25 21:45:16,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:16,915 INFO L470 AbstractCegarLoop]: Abstraction has 17190 states and 19297 transitions. [2021-08-25 21:45:16,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 21:45:16,915 INFO L276 IsEmpty]: Start isEmpty. Operand 17190 states and 19297 transitions. [2021-08-25 21:45:16,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-08-25 21:45:16,921 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:16,921 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, 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, 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] [2021-08-25 21:45:16,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-25 21:45:16,921 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:16,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:16,922 INFO L82 PathProgramCache]: Analyzing trace with hash -379447870, now seen corresponding path program 1 times [2021-08-25 21:45:16,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:16,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435456351] [2021-08-25 21:45:16,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:16,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:17,050 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:17,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:17,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435456351] [2021-08-25 21:45:17,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435456351] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:17,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228137248] [2021-08-25 21:45:17,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:17,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:17,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:17,052 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 21:45:17,085 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 21:45:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:17,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:45:17,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:18,458 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-08-25 21:45:18,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228137248] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:18,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:45:18,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-25 21:45:18,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179009393] [2021-08-25 21:45:18,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:18,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:18,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:18,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:45:18,461 INFO L87 Difference]: Start difference. First operand 17190 states and 19297 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 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 21:45:19,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:19,350 INFO L93 Difference]: Finished difference Result 35504 states and 40039 transitions. [2021-08-25 21:45:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:19,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 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 324 [2021-08-25 21:45:19,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:19,381 INFO L225 Difference]: With dead ends: 35504 [2021-08-25 21:45:19,381 INFO L226 Difference]: Without dead ends: 18684 [2021-08-25 21:45:19,396 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:45:19,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18684 states. [2021-08-25 21:45:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18684 to 18676. [2021-08-25 21:45:19,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18676 states, 18675 states have (on average 1.121178045515395) internal successors, (20938), 18675 states have internal predecessors, (20938), 0 states have call successors, (0), 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 21:45:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18676 states to 18676 states and 20938 transitions. [2021-08-25 21:45:19,598 INFO L78 Accepts]: Start accepts. Automaton has 18676 states and 20938 transitions. Word has length 324 [2021-08-25 21:45:19,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:19,599 INFO L470 AbstractCegarLoop]: Abstraction has 18676 states and 20938 transitions. [2021-08-25 21:45:19,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 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 21:45:19,599 INFO L276 IsEmpty]: Start isEmpty. Operand 18676 states and 20938 transitions. [2021-08-25 21:45:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-08-25 21:45:19,605 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:19,605 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, 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, 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] [2021-08-25 21:45:19,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-25 21:45:19,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-08-25 21:45:19,844 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:19,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:19,844 INFO L82 PathProgramCache]: Analyzing trace with hash -56733327, now seen corresponding path program 1 times [2021-08-25 21:45:19,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:19,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382133912] [2021-08-25 21:45:19,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:19,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-08-25 21:45:19,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:19,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382133912] [2021-08-25 21:45:19,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382133912] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:19,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:19,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:19,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669773897] [2021-08-25 21:45:19,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:19,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:19,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:19,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:19,946 INFO L87 Difference]: Start difference. First operand 18676 states and 20938 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 21:45:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:20,702 INFO L93 Difference]: Finished difference Result 40109 states and 44936 transitions. [2021-08-25 21:45:20,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:20,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 326 [2021-08-25 21:45:20,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:20,721 INFO L225 Difference]: With dead ends: 40109 [2021-08-25 21:45:20,722 INFO L226 Difference]: Without dead ends: 21803 [2021-08-25 21:45:20,730 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 21:45:20,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21803 states. [2021-08-25 21:45:20,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21803 to 14439. [2021-08-25 21:45:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14439 states, 14438 states have (on average 1.13159717412384) internal successors, (16338), 14438 states have internal predecessors, (16338), 0 states have call successors, (0), 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 21:45:20,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14439 states to 14439 states and 16338 transitions. [2021-08-25 21:45:20,869 INFO L78 Accepts]: Start accepts. Automaton has 14439 states and 16338 transitions. Word has length 326 [2021-08-25 21:45:20,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:20,869 INFO L470 AbstractCegarLoop]: Abstraction has 14439 states and 16338 transitions. [2021-08-25 21:45:20,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 21:45:20,869 INFO L276 IsEmpty]: Start isEmpty. Operand 14439 states and 16338 transitions. [2021-08-25 21:45:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-08-25 21:45:20,873 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:20,874 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:20,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-25 21:45:20,874 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:20,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:20,875 INFO L82 PathProgramCache]: Analyzing trace with hash 234214298, now seen corresponding path program 1 times [2021-08-25 21:45:20,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:20,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466643079] [2021-08-25 21:45:20,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:20,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-08-25 21:45:20,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:20,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466643079] [2021-08-25 21:45:20,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466643079] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:20,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:20,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:45:20,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711197461] [2021-08-25 21:45:20,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:20,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:20,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:20,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:20,954 INFO L87 Difference]: Start difference. First operand 14439 states and 16338 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 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 21:45:21,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:21,385 INFO L93 Difference]: Finished difference Result 28500 states and 32286 transitions. [2021-08-25 21:45:21,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:21,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 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 333 [2021-08-25 21:45:21,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:21,399 INFO L225 Difference]: With dead ends: 28500 [2021-08-25 21:45:21,399 INFO L226 Difference]: Without dead ends: 14431 [2021-08-25 21:45:21,408 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 21:45:21,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14431 states. [2021-08-25 21:45:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14431 to 14428. [2021-08-25 21:45:21,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14428 states, 14427 states have (on average 1.1309350523324322) internal successors, (16316), 14427 states have internal predecessors, (16316), 0 states have call successors, (0), 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 21:45:21,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14428 states to 14428 states and 16316 transitions. [2021-08-25 21:45:21,545 INFO L78 Accepts]: Start accepts. Automaton has 14428 states and 16316 transitions. Word has length 333 [2021-08-25 21:45:21,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:21,545 INFO L470 AbstractCegarLoop]: Abstraction has 14428 states and 16316 transitions. [2021-08-25 21:45:21,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 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 21:45:21,545 INFO L276 IsEmpty]: Start isEmpty. Operand 14428 states and 16316 transitions. [2021-08-25 21:45:21,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-08-25 21:45:21,552 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:21,552 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:21,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 21:45:21,553 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:21,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:21,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1309922959, now seen corresponding path program 1 times [2021-08-25 21:45:21,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:21,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618591910] [2021-08-25 21:45:21,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:21,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-25 21:45:21,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:21,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618591910] [2021-08-25 21:45:21,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618591910] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:21,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:21,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:21,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269096000] [2021-08-25 21:45:21,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:21,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:21,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:21,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:21,667 INFO L87 Difference]: Start difference. First operand 14428 states and 16316 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 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 21:45:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:22,500 INFO L93 Difference]: Finished difference Result 32350 states and 36463 transitions. [2021-08-25 21:45:22,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:22,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 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 357 [2021-08-25 21:45:22,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:22,517 INFO L225 Difference]: With dead ends: 32350 [2021-08-25 21:45:22,517 INFO L226 Difference]: Without dead ends: 16448 [2021-08-25 21:45:22,528 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:22,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16448 states. [2021-08-25 21:45:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16448 to 14052. [2021-08-25 21:45:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14052 states, 14051 states have (on average 1.095224539178706) internal successors, (15389), 14051 states have internal predecessors, (15389), 0 states have call successors, (0), 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 21:45:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14052 states to 14052 states and 15389 transitions. [2021-08-25 21:45:22,672 INFO L78 Accepts]: Start accepts. Automaton has 14052 states and 15389 transitions. Word has length 357 [2021-08-25 21:45:22,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:22,672 INFO L470 AbstractCegarLoop]: Abstraction has 14052 states and 15389 transitions. [2021-08-25 21:45:22,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 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 21:45:22,673 INFO L276 IsEmpty]: Start isEmpty. Operand 14052 states and 15389 transitions. [2021-08-25 21:45:22,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-08-25 21:45:22,677 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:22,677 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:22,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-25 21:45:22,678 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:22,678 INFO L82 PathProgramCache]: Analyzing trace with hash -2132777761, now seen corresponding path program 1 times [2021-08-25 21:45:22,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:22,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274495775] [2021-08-25 21:45:22,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:22,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-25 21:45:22,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:22,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274495775] [2021-08-25 21:45:22,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274495775] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:22,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:22,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:45:22,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851098175] [2021-08-25 21:45:22,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:22,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:22,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:22,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:22,774 INFO L87 Difference]: Start difference. First operand 14052 states and 15389 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 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 21:45:23,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:23,912 INFO L93 Difference]: Finished difference Result 28841 states and 31559 transitions. [2021-08-25 21:45:23,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:23,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 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 358 [2021-08-25 21:45:23,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:23,927 INFO L225 Difference]: With dead ends: 28841 [2021-08-25 21:45:23,927 INFO L226 Difference]: Without dead ends: 15159 [2021-08-25 21:45:23,935 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:23,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15159 states. [2021-08-25 21:45:24,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15159 to 14236. [2021-08-25 21:45:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14236 states, 14235 states have (on average 1.0942746750965928) internal successors, (15577), 14235 states have internal predecessors, (15577), 0 states have call successors, (0), 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 21:45:24,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14236 states to 14236 states and 15577 transitions. [2021-08-25 21:45:24,091 INFO L78 Accepts]: Start accepts. Automaton has 14236 states and 15577 transitions. Word has length 358 [2021-08-25 21:45:24,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:24,091 INFO L470 AbstractCegarLoop]: Abstraction has 14236 states and 15577 transitions. [2021-08-25 21:45:24,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 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 21:45:24,092 INFO L276 IsEmpty]: Start isEmpty. Operand 14236 states and 15577 transitions. [2021-08-25 21:45:24,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-08-25 21:45:24,096 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:24,097 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:24,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-25 21:45:24,097 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:24,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:24,098 INFO L82 PathProgramCache]: Analyzing trace with hash 827224776, now seen corresponding path program 1 times [2021-08-25 21:45:24,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:24,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432993450] [2021-08-25 21:45:24,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:24,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-08-25 21:45:24,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:24,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432993450] [2021-08-25 21:45:24,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432993450] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:24,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:24,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:24,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050193553] [2021-08-25 21:45:24,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:24,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:24,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:24,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:24,190 INFO L87 Difference]: Start difference. First operand 14236 states and 15577 transitions. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 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 21:45:25,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:25,286 INFO L93 Difference]: Finished difference Result 36219 states and 39627 transitions. [2021-08-25 21:45:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:25,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 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 372 [2021-08-25 21:45:25,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:25,306 INFO L225 Difference]: With dead ends: 36219 [2021-08-25 21:45:25,307 INFO L226 Difference]: Without dead ends: 21801 [2021-08-25 21:45:25,316 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21801 states. [2021-08-25 21:45:25,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21801 to 20506. [2021-08-25 21:45:25,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20506 states, 20505 states have (on average 1.090904657400634) internal successors, (22369), 20505 states have internal predecessors, (22369), 0 states have call successors, (0), 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 21:45:25,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20506 states to 20506 states and 22369 transitions. [2021-08-25 21:45:25,481 INFO L78 Accepts]: Start accepts. Automaton has 20506 states and 22369 transitions. Word has length 372 [2021-08-25 21:45:25,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:25,482 INFO L470 AbstractCegarLoop]: Abstraction has 20506 states and 22369 transitions. [2021-08-25 21:45:25,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 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 21:45:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 20506 states and 22369 transitions. [2021-08-25 21:45:25,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-08-25 21:45:25,488 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:25,489 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:25,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-25 21:45:25,489 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:25,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:25,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1553293930, now seen corresponding path program 1 times [2021-08-25 21:45:25,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:25,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193181391] [2021-08-25 21:45:25,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:25,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:25,650 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 146 proven. 200 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-08-25 21:45:25,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:25,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193181391] [2021-08-25 21:45:25,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193181391] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:25,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817647870] [2021-08-25 21:45:25,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:25,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:25,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:25,652 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 21:45:25,653 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 21:45:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:25,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-25 21:45:25,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:28,400 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:45:28,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817647870] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:28,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 21:45:28,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-08-25 21:45:28,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668447287] [2021-08-25 21:45:28,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-25 21:45:28,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:28,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-25 21:45:28,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-08-25 21:45:28,403 INFO L87 Difference]: Start difference. First operand 20506 states and 22369 transitions. Second operand has 9 states, 9 states have (on average 77.88888888888889) internal successors, (701), 8 states have internal predecessors, (701), 0 states have call successors, (0), 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 21:45:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:32,669 INFO L93 Difference]: Finished difference Result 57155 states and 62107 transitions. [2021-08-25 21:45:32,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-25 21:45:32,669 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 77.88888888888889) internal successors, (701), 8 states have internal predecessors, (701), 0 states have call successors, (0), 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 21:45:32,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:32,705 INFO L225 Difference]: With dead ends: 57155 [2021-08-25 21:45:32,705 INFO L226 Difference]: Without dead ends: 36465 [2021-08-25 21:45:32,719 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 193.1ms TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-08-25 21:45:32,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36465 states. [2021-08-25 21:45:33,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36465 to 33774. [2021-08-25 21:45:33,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33774 states, 33773 states have (on average 1.0809522399549936) internal successors, (36507), 33773 states have internal predecessors, (36507), 0 states have call successors, (0), 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 21:45:33,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33774 states to 33774 states and 36507 transitions. [2021-08-25 21:45:33,069 INFO L78 Accepts]: Start accepts. Automaton has 33774 states and 36507 transitions. Word has length 389 [2021-08-25 21:45:33,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:33,069 INFO L470 AbstractCegarLoop]: Abstraction has 33774 states and 36507 transitions. [2021-08-25 21:45:33,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.88888888888889) internal successors, (701), 8 states have internal predecessors, (701), 0 states have call successors, (0), 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 21:45:33,070 INFO L276 IsEmpty]: Start isEmpty. Operand 33774 states and 36507 transitions. [2021-08-25 21:45:33,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-08-25 21:45:33,077 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:33,077 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:33,102 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 21:45:33,278 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,SelfDestructingSolverStorable19 [2021-08-25 21:45:33,280 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:33,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1546004851, now seen corresponding path program 1 times [2021-08-25 21:45:33,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:33,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224814570] [2021-08-25 21:45:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:33,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-08-25 21:45:33,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:33,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224814570] [2021-08-25 21:45:33,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224814570] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:33,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:33,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:33,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322491694] [2021-08-25 21:45:33,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:45:33,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:33,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:45:33,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:33,399 INFO L87 Difference]: Start difference. First operand 33774 states and 36507 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 21:45:34,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:34,800 INFO L93 Difference]: Finished difference Result 69581 states and 75255 transitions. [2021-08-25 21:45:34,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:45:34,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 394 [2021-08-25 21:45:34,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:34,836 INFO L225 Difference]: With dead ends: 69581 [2021-08-25 21:45:34,837 INFO L226 Difference]: Without dead ends: 36177 [2021-08-25 21:45:34,856 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:45:34,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36177 states. [2021-08-25 21:45:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36177 to 32290. [2021-08-25 21:45:35,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32290 states, 32289 states have (on average 1.0802440459599245) internal successors, (34880), 32289 states have internal predecessors, (34880), 0 states have call successors, (0), 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 21:45:35,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32290 states to 32290 states and 34880 transitions. [2021-08-25 21:45:35,207 INFO L78 Accepts]: Start accepts. Automaton has 32290 states and 34880 transitions. Word has length 394 [2021-08-25 21:45:35,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:35,207 INFO L470 AbstractCegarLoop]: Abstraction has 32290 states and 34880 transitions. [2021-08-25 21:45:35,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 21:45:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand 32290 states and 34880 transitions. [2021-08-25 21:45:35,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-08-25 21:45:35,217 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:35,217 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:35,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-25 21:45:35,217 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:35,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:35,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1148113260, now seen corresponding path program 1 times [2021-08-25 21:45:35,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:35,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429833860] [2021-08-25 21:45:35,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:35,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-08-25 21:45:35,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:35,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429833860] [2021-08-25 21:45:35,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429833860] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:35,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:35,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:35,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950329501] [2021-08-25 21:45:35,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:35,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:35,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:35,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:35,320 INFO L87 Difference]: Start difference. First operand 32290 states and 34880 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 21:45:36,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:36,071 INFO L93 Difference]: Finished difference Result 66782 states and 72137 transitions. [2021-08-25 21:45:36,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:36,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 434 [2021-08-25 21:45:36,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:36,110 INFO L225 Difference]: With dead ends: 66782 [2021-08-25 21:45:36,110 INFO L226 Difference]: Without dead ends: 34862 [2021-08-25 21:45:36,129 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 21:45:36,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34862 states. [2021-08-25 21:45:36,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34862 to 28232. [2021-08-25 21:45:36,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28232 states, 28231 states have (on average 1.0754135524777726) internal successors, (30360), 28231 states have internal predecessors, (30360), 0 states have call successors, (0), 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 21:45:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28232 states to 28232 states and 30360 transitions. [2021-08-25 21:45:36,670 INFO L78 Accepts]: Start accepts. Automaton has 28232 states and 30360 transitions. Word has length 434 [2021-08-25 21:45:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:36,670 INFO L470 AbstractCegarLoop]: Abstraction has 28232 states and 30360 transitions. [2021-08-25 21:45:36,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 21:45:36,671 INFO L276 IsEmpty]: Start isEmpty. Operand 28232 states and 30360 transitions. [2021-08-25 21:45:36,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-08-25 21:45:36,696 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:36,696 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:45:36,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-25 21:45:36,696 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:36,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:36,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1848032332, now seen corresponding path program 1 times [2021-08-25 21:45:36,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:36,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174413007] [2021-08-25 21:45:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:36,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:36,799 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-08-25 21:45:36,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:36,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174413007] [2021-08-25 21:45:36,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174413007] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:36,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:36,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:45:36,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73623699] [2021-08-25 21:45:36,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:36,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:36,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:36,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:36,804 INFO L87 Difference]: Start difference. First operand 28232 states and 30360 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 21:45:37,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:37,534 INFO L93 Difference]: Finished difference Result 55550 states and 59788 transitions. [2021-08-25 21:45:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:37,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 468 [2021-08-25 21:45:37,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:37,565 INFO L225 Difference]: With dead ends: 55550 [2021-08-25 21:45:37,565 INFO L226 Difference]: Without dead ends: 29712 [2021-08-25 21:45:37,581 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 21:45:37,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29712 states. [2021-08-25 21:45:37,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29712 to 28048. [2021-08-25 21:45:37,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28048 states, 28047 states have (on average 1.0749812814204727) internal successors, (30150), 28047 states have internal predecessors, (30150), 0 states have call successors, (0), 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 21:45:37,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28048 states to 28048 states and 30150 transitions. [2021-08-25 21:45:37,854 INFO L78 Accepts]: Start accepts. Automaton has 28048 states and 30150 transitions. Word has length 468 [2021-08-25 21:45:37,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:37,854 INFO L470 AbstractCegarLoop]: Abstraction has 28048 states and 30150 transitions. [2021-08-25 21:45:37,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 21:45:37,855 INFO L276 IsEmpty]: Start isEmpty. Operand 28048 states and 30150 transitions. [2021-08-25 21:45:37,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-08-25 21:45:37,863 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:37,863 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, 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, 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] [2021-08-25 21:45:37,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-25 21:45:37,864 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:37,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:37,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1117136727, now seen corresponding path program 1 times [2021-08-25 21:45:37,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:37,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836908316] [2021-08-25 21:45:37,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:37,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:38,005 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 269 proven. 132 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-25 21:45:38,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:38,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836908316] [2021-08-25 21:45:38,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836908316] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:38,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17431613] [2021-08-25 21:45:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:38,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:38,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:38,007 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 21:45:38,008 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 21:45:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:38,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-25 21:45:38,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-25 21:45:39,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17431613] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:39,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:45:39,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:45:39,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289342105] [2021-08-25 21:45:39,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:45:39,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:39,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:45:39,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:39,684 INFO L87 Difference]: Start difference. First operand 28048 states and 30150 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:45:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:40,356 INFO L93 Difference]: Finished difference Result 55910 states and 60132 transitions. [2021-08-25 21:45:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:40,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 472 [2021-08-25 21:45:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:40,385 INFO L225 Difference]: With dead ends: 55910 [2021-08-25 21:45:40,385 INFO L226 Difference]: Without dead ends: 28782 [2021-08-25 21:45:40,403 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:45:40,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28782 states. [2021-08-25 21:45:40,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28782 to 27862. [2021-08-25 21:45:40,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27862 states, 27861 states have (on average 1.0719285022073868) internal successors, (29865), 27861 states have internal predecessors, (29865), 0 states have call successors, (0), 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 21:45:40,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27862 states to 27862 states and 29865 transitions. [2021-08-25 21:45:40,676 INFO L78 Accepts]: Start accepts. Automaton has 27862 states and 29865 transitions. Word has length 472 [2021-08-25 21:45:40,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:40,676 INFO L470 AbstractCegarLoop]: Abstraction has 27862 states and 29865 transitions. [2021-08-25 21:45:40,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:45:40,677 INFO L276 IsEmpty]: Start isEmpty. Operand 27862 states and 29865 transitions. [2021-08-25 21:45:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2021-08-25 21:45:40,687 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:40,688 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:45:40,706 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 21:45:40,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:40,905 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:40,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:40,905 INFO L82 PathProgramCache]: Analyzing trace with hash 2131901513, now seen corresponding path program 1 times [2021-08-25 21:45:40,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:40,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110780684] [2021-08-25 21:45:40,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:40,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-08-25 21:45:41,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:41,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110780684] [2021-08-25 21:45:41,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110780684] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:45:41,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:45:41,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-25 21:45:41,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216353932] [2021-08-25 21:45:41,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-25 21:45:41,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:41,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-25 21:45:41,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:45:41,145 INFO L87 Difference]: Start difference. First operand 27862 states and 29865 transitions. Second operand has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 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 21:45:42,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:42,793 INFO L93 Difference]: Finished difference Result 59178 states and 63376 transitions. [2021-08-25 21:45:42,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-25 21:45:42,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 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 523 [2021-08-25 21:45:42,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:42,827 INFO L225 Difference]: With dead ends: 59178 [2021-08-25 21:45:42,827 INFO L226 Difference]: Without dead ends: 33710 [2021-08-25 21:45:42,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 82.6ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-25 21:45:42,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33710 states. [2021-08-25 21:45:43,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33710 to 28968. [2021-08-25 21:45:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28968 states, 28967 states have (on average 1.072254634584182) internal successors, (31060), 28967 states have internal predecessors, (31060), 0 states have call successors, (0), 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 21:45:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28968 states to 28968 states and 31060 transitions. [2021-08-25 21:45:43,131 INFO L78 Accepts]: Start accepts. Automaton has 28968 states and 31060 transitions. Word has length 523 [2021-08-25 21:45:43,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:43,132 INFO L470 AbstractCegarLoop]: Abstraction has 28968 states and 31060 transitions. [2021-08-25 21:45:43,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 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 21:45:43,132 INFO L276 IsEmpty]: Start isEmpty. Operand 28968 states and 31060 transitions. [2021-08-25 21:45:43,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-08-25 21:45:43,145 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:43,145 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:45:43,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-25 21:45:43,145 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:43,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:43,146 INFO L82 PathProgramCache]: Analyzing trace with hash 435204898, now seen corresponding path program 1 times [2021-08-25 21:45:43,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:43,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182054820] [2021-08-25 21:45:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:43,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:43,389 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 606 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-08-25 21:45:43,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:43,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182054820] [2021-08-25 21:45:43,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182054820] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:43,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414770530] [2021-08-25 21:45:43,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:43,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:43,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:43,405 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 21:45:43,426 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 21:45:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:44,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-25 21:45:44,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-08-25 21:45:46,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414770530] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:46,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 21:45:46,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-08-25 21:45:46,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173957062] [2021-08-25 21:45:46,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-25 21:45:46,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:46,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-25 21:45:46,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-08-25 21:45:46,905 INFO L87 Difference]: Start difference. First operand 28968 states and 31060 transitions. Second operand has 9 states, 9 states have (on average 76.44444444444444) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 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 21:45:50,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:50,103 INFO L93 Difference]: Finished difference Result 64164 states and 68676 transitions. [2021-08-25 21:45:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-25 21:45:50,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 76.44444444444444) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 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 533 [2021-08-25 21:45:50,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:50,134 INFO L225 Difference]: With dead ends: 64164 [2021-08-25 21:45:50,135 INFO L226 Difference]: Without dead ends: 35934 [2021-08-25 21:45:50,152 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 419.9ms TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2021-08-25 21:45:50,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35934 states. [2021-08-25 21:45:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35934 to 32832. [2021-08-25 21:45:50,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32832 states, 32831 states have (on average 1.0690201334104963) internal successors, (35097), 32831 states have internal predecessors, (35097), 0 states have call successors, (0), 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 21:45:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32832 states to 32832 states and 35097 transitions. [2021-08-25 21:45:50,510 INFO L78 Accepts]: Start accepts. Automaton has 32832 states and 35097 transitions. Word has length 533 [2021-08-25 21:45:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:50,511 INFO L470 AbstractCegarLoop]: Abstraction has 32832 states and 35097 transitions. [2021-08-25 21:45:50,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.44444444444444) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 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 21:45:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 32832 states and 35097 transitions. [2021-08-25 21:45:50,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2021-08-25 21:45:50,525 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:50,525 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:50,544 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 21:45:50,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-08-25 21:45:50,741 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:50,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:50,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1729367067, now seen corresponding path program 1 times [2021-08-25 21:45:50,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:50,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489550011] [2021-08-25 21:45:50,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:50,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:50,877 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 390 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-08-25 21:45:50,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:50,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489550011] [2021-08-25 21:45:50,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489550011] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:50,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428549229] [2021-08-25 21:45:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:50,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:50,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:50,879 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 21:45:50,930 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 21:45:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:51,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-25 21:45:51,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:45:54,431 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 341 proven. 255 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-08-25 21:45:54,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428549229] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:54,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 21:45:54,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-25 21:45:54,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117526754] [2021-08-25 21:45:54,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-25 21:45:54,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:45:54,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-25 21:45:54,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:45:54,433 INFO L87 Difference]: Start difference. First operand 32832 states and 35097 transitions. Second operand has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 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 21:45:57,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:57,401 INFO L93 Difference]: Finished difference Result 78399 states and 83956 transitions. [2021-08-25 21:45:57,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-25 21:45:57,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 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 536 [2021-08-25 21:45:57,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:57,448 INFO L225 Difference]: With dead ends: 78399 [2021-08-25 21:45:57,449 INFO L226 Difference]: Without dead ends: 46305 [2021-08-25 21:45:57,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 534 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 32.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:45:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46305 states. [2021-08-25 21:45:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46305 to 38924. [2021-08-25 21:45:57,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38924 states, 38923 states have (on average 1.0699843280322687) internal successors, (41647), 38923 states have internal predecessors, (41647), 0 states have call successors, (0), 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 21:45:57,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38924 states to 38924 states and 41647 transitions. [2021-08-25 21:45:57,981 INFO L78 Accepts]: Start accepts. Automaton has 38924 states and 41647 transitions. Word has length 536 [2021-08-25 21:45:57,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:57,981 INFO L470 AbstractCegarLoop]: Abstraction has 38924 states and 41647 transitions. [2021-08-25 21:45:57,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.28571428571429) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 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 21:45:57,982 INFO L276 IsEmpty]: Start isEmpty. Operand 38924 states and 41647 transitions. [2021-08-25 21:45:57,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2021-08-25 21:45:57,991 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:45:57,991 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:45:58,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-08-25 21:45:58,202 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,SelfDestructingSolverStorable26 [2021-08-25 21:45:58,203 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:45:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:45:58,203 INFO L82 PathProgramCache]: Analyzing trace with hash 958598378, now seen corresponding path program 1 times [2021-08-25 21:45:58,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:45:58,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423235735] [2021-08-25 21:45:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:58,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:45:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:58,394 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 408 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-08-25 21:45:58,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:45:58,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423235735] [2021-08-25 21:45:58,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423235735] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:45:58,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055112608] [2021-08-25 21:45:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:45:58,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:45:58,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:45:58,396 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 21:45:58,397 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 21:45:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:45:59,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-25 21:45:59,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:46:01,064 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 352 proven. 49 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-08-25 21:46:01,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055112608] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:46:01,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 21:46:01,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-08-25 21:46:01,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350865684] [2021-08-25 21:46:01,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-25 21:46:01,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:01,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-25 21:46:01,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:46:01,147 INFO L87 Difference]: Start difference. First operand 38924 states and 41647 transitions. Second operand has 8 states, 8 states have (on average 86.125) internal successors, (689), 8 states have internal predecessors, (689), 0 states have call successors, (0), 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 21:46:04,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:04,765 INFO L93 Difference]: Finished difference Result 89090 states and 95225 transitions. [2021-08-25 21:46:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-25 21:46:04,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 86.125) internal successors, (689), 8 states have internal predecessors, (689), 0 states have call successors, (0), 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 547 [2021-08-25 21:46:04,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:04,822 INFO L225 Difference]: With dead ends: 89090 [2021-08-25 21:46:04,822 INFO L226 Difference]: Without dead ends: 52744 [2021-08-25 21:46:04,846 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 46.0ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-08-25 21:46:04,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52744 states. [2021-08-25 21:46:05,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52744 to 40028. [2021-08-25 21:46:05,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40028 states, 40027 states have (on average 1.0712019386913834) internal successors, (42877), 40027 states have internal predecessors, (42877), 0 states have call successors, (0), 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 21:46:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40028 states to 40028 states and 42877 transitions. [2021-08-25 21:46:05,312 INFO L78 Accepts]: Start accepts. Automaton has 40028 states and 42877 transitions. Word has length 547 [2021-08-25 21:46:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:05,312 INFO L470 AbstractCegarLoop]: Abstraction has 40028 states and 42877 transitions. [2021-08-25 21:46:05,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 86.125) internal successors, (689), 8 states have internal predecessors, (689), 0 states have call successors, (0), 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 21:46:05,313 INFO L276 IsEmpty]: Start isEmpty. Operand 40028 states and 42877 transitions. [2021-08-25 21:46:05,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2021-08-25 21:46:05,324 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:05,324 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:05,351 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 21:46:05,548 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,SelfDestructingSolverStorable27 [2021-08-25 21:46:05,548 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:05,549 INFO L82 PathProgramCache]: Analyzing trace with hash -832566384, now seen corresponding path program 1 times [2021-08-25 21:46:05,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:05,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255878868] [2021-08-25 21:46:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:05,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:05,795 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-08-25 21:46:05,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:05,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255878868] [2021-08-25 21:46:05,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255878868] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:05,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:05,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:05,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722646484] [2021-08-25 21:46:05,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:46:05,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:05,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:46:05,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:05,797 INFO L87 Difference]: Start difference. First operand 40028 states and 42877 transitions. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 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 21:46:06,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:06,851 INFO L93 Difference]: Finished difference Result 78400 states and 84017 transitions. [2021-08-25 21:46:06,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:46:06,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 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 554 [2021-08-25 21:46:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:06,894 INFO L225 Difference]: With dead ends: 78400 [2021-08-25 21:46:06,894 INFO L226 Difference]: Without dead ends: 39844 [2021-08-25 21:46:06,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:06,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39844 states. [2021-08-25 21:46:07,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39844 to 25100. [2021-08-25 21:46:07,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25100 states, 25099 states have (on average 1.0709191601259014) internal successors, (26879), 25099 states have internal predecessors, (26879), 0 states have call successors, (0), 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 21:46:07,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25100 states to 25100 states and 26879 transitions. [2021-08-25 21:46:07,278 INFO L78 Accepts]: Start accepts. Automaton has 25100 states and 26879 transitions. Word has length 554 [2021-08-25 21:46:07,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:07,278 INFO L470 AbstractCegarLoop]: Abstraction has 25100 states and 26879 transitions. [2021-08-25 21:46:07,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 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 21:46:07,279 INFO L276 IsEmpty]: Start isEmpty. Operand 25100 states and 26879 transitions. [2021-08-25 21:46:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2021-08-25 21:46:07,289 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:07,290 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-08-25 21:46:07,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-08-25 21:46:07,290 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:07,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:07,291 INFO L82 PathProgramCache]: Analyzing trace with hash -135063913, now seen corresponding path program 1 times [2021-08-25 21:46:07,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:07,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880906072] [2021-08-25 21:46:07,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:07,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:07,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 901 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-25 21:46:07,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:07,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880906072] [2021-08-25 21:46:07,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880906072] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:07,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:07,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:46:07,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524743973] [2021-08-25 21:46:07,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:46:07,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:07,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:46:07,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:07,478 INFO L87 Difference]: Start difference. First operand 25100 states and 26879 transitions. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 21:46:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:08,781 INFO L93 Difference]: Finished difference Result 57022 states and 60991 transitions. [2021-08-25 21:46:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:46:08,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 630 [2021-08-25 21:46:08,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:08,811 INFO L225 Difference]: With dead ends: 57022 [2021-08-25 21:46:08,811 INFO L226 Difference]: Without dead ends: 32476 [2021-08-25 21:46:08,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:46:08,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32476 states. [2021-08-25 21:46:09,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32476 to 24926. [2021-08-25 21:46:09,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24926 states, 24925 states have (on average 1.0690471414242728) internal successors, (26646), 24925 states have internal predecessors, (26646), 0 states have call successors, (0), 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 21:46:09,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24926 states to 24926 states and 26646 transitions. [2021-08-25 21:46:09,120 INFO L78 Accepts]: Start accepts. Automaton has 24926 states and 26646 transitions. Word has length 630 [2021-08-25 21:46:09,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:09,120 INFO L470 AbstractCegarLoop]: Abstraction has 24926 states and 26646 transitions. [2021-08-25 21:46:09,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 21:46:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 24926 states and 26646 transitions. [2021-08-25 21:46:09,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2021-08-25 21:46:09,129 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:09,129 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:46:09,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-08-25 21:46:09,129 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:09,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:09,130 INFO L82 PathProgramCache]: Analyzing trace with hash 969878179, now seen corresponding path program 1 times [2021-08-25 21:46:09,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:09,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541256156] [2021-08-25 21:46:09,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:09,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 673 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2021-08-25 21:46:09,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:09,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541256156] [2021-08-25 21:46:09,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541256156] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:09,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:09,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:09,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557875242] [2021-08-25 21:46:09,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:09,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:09,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:09,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:09,283 INFO L87 Difference]: Start difference. First operand 24926 states and 26646 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:46:10,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:10,092 INFO L93 Difference]: Finished difference Result 51687 states and 55283 transitions. [2021-08-25 21:46:10,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:10,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 717 [2021-08-25 21:46:10,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:10,116 INFO L225 Difference]: With dead ends: 51687 [2021-08-25 21:46:10,116 INFO L226 Difference]: Without dead ends: 26947 [2021-08-25 21:46:10,129 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 21:46:10,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26947 states. [2021-08-25 21:46:10,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26947 to 24001. [2021-08-25 21:46:10,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24001 states, 24000 states have (on average 1.0677916666666667) internal successors, (25627), 24000 states have internal predecessors, (25627), 0 states have call successors, (0), 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 21:46:10,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24001 states to 24001 states and 25627 transitions. [2021-08-25 21:46:10,383 INFO L78 Accepts]: Start accepts. Automaton has 24001 states and 25627 transitions. Word has length 717 [2021-08-25 21:46:10,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:10,384 INFO L470 AbstractCegarLoop]: Abstraction has 24001 states and 25627 transitions. [2021-08-25 21:46:10,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:46:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 24001 states and 25627 transitions. [2021-08-25 21:46:10,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2021-08-25 21:46:10,394 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:10,394 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:10,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-08-25 21:46:10,394 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:10,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:10,395 INFO L82 PathProgramCache]: Analyzing trace with hash 470610289, now seen corresponding path program 1 times [2021-08-25 21:46:10,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:10,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356314246] [2021-08-25 21:46:10,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:10,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2021-08-25 21:46:10,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:10,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356314246] [2021-08-25 21:46:10,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356314246] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:10,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:46:10,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:46:10,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116672204] [2021-08-25 21:46:10,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:10,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:10,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:10,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:46:10,552 INFO L87 Difference]: Start difference. First operand 24001 states and 25627 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 21:46:11,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:11,288 INFO L93 Difference]: Finished difference Result 48372 states and 51601 transitions. [2021-08-25 21:46:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:11,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 757 [2021-08-25 21:46:11,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:11,311 INFO L225 Difference]: With dead ends: 48372 [2021-08-25 21:46:11,311 INFO L226 Difference]: Without dead ends: 24557 [2021-08-25 21:46:11,326 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 21:46:11,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24557 states. [2021-08-25 21:46:11,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24557 to 23080. [2021-08-25 21:46:11,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23080 states, 23079 states have (on average 1.0660340569348759) internal successors, (24603), 23079 states have internal predecessors, (24603), 0 states have call successors, (0), 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 21:46:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23080 states to 23080 states and 24603 transitions. [2021-08-25 21:46:11,594 INFO L78 Accepts]: Start accepts. Automaton has 23080 states and 24603 transitions. Word has length 757 [2021-08-25 21:46:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:11,594 INFO L470 AbstractCegarLoop]: Abstraction has 23080 states and 24603 transitions. [2021-08-25 21:46:11,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 21:46:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 23080 states and 24603 transitions. [2021-08-25 21:46:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1135 [2021-08-25 21:46:11,611 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:11,611 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:11,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-08-25 21:46:11,612 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:11,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1022409577, now seen corresponding path program 1 times [2021-08-25 21:46:11,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:11,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439017602] [2021-08-25 21:46:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:11,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3580 backedges. 2476 proven. 44 refuted. 0 times theorem prover too weak. 1060 trivial. 0 not checked. [2021-08-25 21:46:11,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:11,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439017602] [2021-08-25 21:46:11,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439017602] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:46:11,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713176583] [2021-08-25 21:46:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:11,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:46:11,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:46:11,989 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 21:46:11,990 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 21:46:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:13,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 21:46:13,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:46:15,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3580 backedges. 2077 proven. 0 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2021-08-25 21:46:15,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713176583] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:15,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:46:15,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-08-25 21:46:15,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317371857] [2021-08-25 21:46:15,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:46:15,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:15,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:46:15,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-08-25 21:46:15,767 INFO L87 Difference]: Start difference. First operand 23080 states and 24603 transitions. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 21:46:16,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:16,458 INFO L93 Difference]: Finished difference Result 42651 states and 45412 transitions. [2021-08-25 21:46:16,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:46:16,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 1134 [2021-08-25 21:46:16,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:16,471 INFO L225 Difference]: With dead ends: 42651 [2021-08-25 21:46:16,471 INFO L226 Difference]: Without dead ends: 14599 [2021-08-25 21:46:16,483 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1140 GetRequests, 1133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 47.9ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-08-25 21:46:16,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14599 states. [2021-08-25 21:46:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14599 to 8326. [2021-08-25 21:46:16,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 1.0372372372372372) internal successors, (8635), 8325 states have internal predecessors, (8635), 0 states have call successors, (0), 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 21:46:16,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 8635 transitions. [2021-08-25 21:46:16,574 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 8635 transitions. Word has length 1134 [2021-08-25 21:46:16,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:16,575 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 8635 transitions. [2021-08-25 21:46:16,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 21:46:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 8635 transitions. [2021-08-25 21:46:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1264 [2021-08-25 21:46:16,585 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:16,586 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:16,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-08-25 21:46:16,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:46:16,805 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:16,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:16,805 INFO L82 PathProgramCache]: Analyzing trace with hash 865097325, now seen corresponding path program 1 times [2021-08-25 21:46:16,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:16,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569862354] [2021-08-25 21:46:16,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:16,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4494 backedges. 2598 proven. 277 refuted. 0 times theorem prover too weak. 1619 trivial. 0 not checked. [2021-08-25 21:46:17,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:17,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569862354] [2021-08-25 21:46:17,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569862354] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:46:17,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415886086] [2021-08-25 21:46:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:17,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:46:17,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:46:17,178 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 21:46:17,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-25 21:46:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:19,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-25 21:46:19,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:46:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4494 backedges. 2985 proven. 353 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2021-08-25 21:46:25,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415886086] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:46:25,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 21:46:25,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2021-08-25 21:46:25,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860409870] [2021-08-25 21:46:25,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-25 21:46:25,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:25,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-25 21:46:25,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-08-25 21:46:25,833 INFO L87 Difference]: Start difference. First operand 8326 states and 8635 transitions. Second operand has 10 states, 10 states have (on average 66.9) internal successors, (669), 9 states have internal predecessors, (669), 0 states have call successors, (0), 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 21:46:28,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:28,158 INFO L93 Difference]: Finished difference Result 17554 states and 18190 transitions. [2021-08-25 21:46:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-25 21:46:28,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 66.9) internal successors, (669), 9 states have internal predecessors, (669), 0 states have call successors, (0), 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 1263 [2021-08-25 21:46:28,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:28,167 INFO L225 Difference]: With dead ends: 17554 [2021-08-25 21:46:28,167 INFO L226 Difference]: Without dead ends: 9968 [2021-08-25 21:46:28,172 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1279 GetRequests, 1258 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 263.6ms TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2021-08-25 21:46:28,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9968 states. [2021-08-25 21:46:28,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9968 to 8510. [2021-08-25 21:46:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8510 states, 8509 states have (on average 1.0369021036549535) internal successors, (8823), 8509 states have internal predecessors, (8823), 0 states have call successors, (0), 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 21:46:28,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8510 states to 8510 states and 8823 transitions. [2021-08-25 21:46:28,246 INFO L78 Accepts]: Start accepts. Automaton has 8510 states and 8823 transitions. Word has length 1263 [2021-08-25 21:46:28,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:28,247 INFO L470 AbstractCegarLoop]: Abstraction has 8510 states and 8823 transitions. [2021-08-25 21:46:28,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.9) internal successors, (669), 9 states have internal predecessors, (669), 0 states have call successors, (0), 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 21:46:28,247 INFO L276 IsEmpty]: Start isEmpty. Operand 8510 states and 8823 transitions. [2021-08-25 21:46:28,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2021-08-25 21:46:28,259 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:46:28,259 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:46:28,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-25 21:46:28,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-08-25 21:46:28,483 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:46:28,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:46:28,484 INFO L82 PathProgramCache]: Analyzing trace with hash -466935292, now seen corresponding path program 1 times [2021-08-25 21:46:28,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:46:28,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016401689] [2021-08-25 21:46:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:28,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:46:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5491 backedges. 3241 proven. 1173 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2021-08-25 21:46:28,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:46:28,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016401689] [2021-08-25 21:46:28,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016401689] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:46:28,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733967875] [2021-08-25 21:46:28,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:46:28,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:46:28,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:46:28,939 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 21:46:28,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-25 21:46:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:46:31,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:46:31,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:46:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5491 backedges. 3429 proven. 0 refuted. 0 times theorem prover too weak. 2062 trivial. 0 not checked. [2021-08-25 21:46:34,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733967875] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:46:34,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:46:34,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2021-08-25 21:46:34,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541348740] [2021-08-25 21:46:34,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:46:34,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:46:34,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:46:34,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:46:34,440 INFO L87 Difference]: Start difference. First operand 8510 states and 8823 transitions. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 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 21:46:35,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:46:35,070 INFO L93 Difference]: Finished difference Result 10923 states and 11289 transitions. [2021-08-25 21:46:35,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:46:35,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 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 1376 [2021-08-25 21:46:35,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:46:35,071 INFO L225 Difference]: With dead ends: 10923 [2021-08-25 21:46:35,071 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 21:46:35,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1382 GetRequests, 1377 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 22.5ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:46:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 21:46:35,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 21:46:35,075 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 21:46:35,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 21:46:35,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1376 [2021-08-25 21:46:35,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:46:35,076 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 21:46:35,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 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 21:46:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 21:46:35,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 21:46:35,078 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 21:46:35,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-25 21:46:35,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-08-25 21:46:35,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 21:46:35,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:46:41,296 WARN L207 SmtUtils]: Spent 5.99 s on a formula simplification. DAG size of input: 2036 DAG size of output: 1502 [2021-08-25 21:46:41,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:46:46,828 WARN L207 SmtUtils]: Spent 5.52 s on a formula simplification. DAG size of input: 2033 DAG size of output: 1502 [2021-08-25 21:46:46,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:46:58,990 WARN L207 SmtUtils]: Spent 12.15 s on a formula simplification. DAG size of input: 1322 DAG size of output: 166 [2021-08-25 21:47:10,928 WARN L207 SmtUtils]: Spent 11.93 s on a formula simplification. DAG size of input: 1322 DAG size of output: 166 [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-08-25 21:47:10,932 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-08-25 21:47:10,933 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,934 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse1 (= ~a25~0 12)) (.cse18 (<= 307 ~a23~0)) (.cse21 (<= ~a23~0 312)) (.cse25 (= ~a25~0 13)) (.cse2 (<= ~a29~0 274)) (.cse9 (<= 130 ~a29~0)) (.cse29 (<= 260 ~a29~0)) (.cse22 (<= ~a25~0 10)) (.cse7 (<= ~a23~0 247)) (.cse4 (= ~a4~0 1))) (let ((.cse10 (<= 0 (+ 589264 ~a29~0))) (.cse8 (= ~a25~0 11)) (.cse20 (<= 21782 ~a23~0)) (.cse14 (<= ~a29~0 130)) (.cse15 (<= (+ ~a23~0 43) 0)) (.cse24 (<= 253 ~a29~0)) (.cse23 (<= 93781 ~a29~0)) (.cse16 (<= ~a25~0 9)) (.cse6 (<= 246 ~a29~0)) (.cse11 (<= (+ ~a23~0 55) 0)) (.cse17 (< 140 ~a29~0)) (.cse27 (<= ~a29~0 245)) (.cse13 (<= ~a4~0 0)) (.cse0 (<= ~a23~0 600000)) (.cse26 (= ~a25~0 10)) (.cse28 (let ((.cse30 (<= 115953 ~a29~0))) (or (and .cse1 .cse7 .cse2 .cse4 .cse9) (and .cse25 .cse18 .cse4 .cse21 .cse30) (and .cse25 .cse7 .cse2 .cse4 .cse9) (and .cse29 .cse7 .cse22 .cse4) (and .cse7 .cse4 .cse30)))) (.cse12 (<= 0 (+ ~a23~0 599772))) (.cse3 (= ~a3~0 1)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse4 .cse5 .cse9) (and .cse10 .cse11 .cse1 .cse12 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse3 .cse5 .cse13 .cse14) (and .cse1 .cse12 .cse7 .cse3 .cse4 .cse5) (and .cse15 (<= 10250 ~a29~0) .cse3 .cse16 .cse5) (and .cse5 (let ((.cse19 (<= ~a29~0 220))) (or (and .cse0 .cse1 .cse17 .cse18 .cse3 .cse19 .cse4) (and .cse0 .cse17 .cse8 .cse3 .cse19 .cse4) (and .cse0 .cse1 .cse17 .cse3 .cse20 .cse4 (<= ~a29~0 232)) (and .cse0 .cse17 .cse8 .cse3 .cse20 .cse4) (and .cse8 (<= 192 ~a29~0) .cse3 .cse4 .cse21)))) (and .cse12 (<= ~a29~0 140) .cse3 .cse4 .cse21 .cse16 .cse5) (and (or (and .cse15 .cse10 .cse8 .cse14) (and .cse15 .cse10 .cse22 .cse14)) .cse3 .cse5) (and .cse12 .cse8 .cse3 .cse4 .cse23 .cse5 .cse6) (and .cse12 .cse7 .cse8 .cse2 .cse3 .cse24 .cse5) (and .cse25 .cse15 .cse12 .cse2 .cse3 .cse24 .cse5) (and .cse3 .cse4 .cse23 .cse5 .cse26) (and .cse0 .cse12 .cse8 .cse3 .cse4 .cse5 .cse6) (and .cse25 .cse0 .cse17 .cse2 .cse3 .cse4 .cse5) (and .cse17 .cse22 .cse27 .cse3 .cse20 .cse4 .cse5) (and .cse17 (or (and .cse25 .cse12 .cse3 .cse4 .cse23 .cse21 .cse5) (and .cse28 .cse3 .cse5))) (and (or (and .cse25 .cse0 .cse12 .cse4 .cse14) (and .cse25 .cse0 .cse18 .cse4)) .cse3 .cse5) (and .cse0 (or (and .cse18 .cse3 .cse5 .cse6) (and .cse29 .cse3 .cse5)) .cse4 .cse16) (and .cse15 (or (and .cse1 .cse12 .cse2 .cse3 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse24 .cse5))) (and .cse0 .cse1 .cse18 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse4 .cse5 .cse26) (and (<= ~a29~0 275) .cse1 .cse3 .cse5 .cse6 .cse13) (and .cse3 .cse4 .cse23 .cse16 .cse5) (and .cse12 .cse7 .cse22 .cse3 .cse4 .cse5 .cse6) (and .cse11 .cse1 .cse17 .cse27 .cse3 .cse5 .cse13) (and .cse0 .cse3 .cse4 .cse5 .cse26) (and .cse28 .cse12 .cse3 .cse5)))) [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-08-25 21:47:10,935 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,936 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse1 (= ~a25~0 12)) (.cse18 (<= 307 ~a23~0)) (.cse21 (<= ~a23~0 312)) (.cse25 (= ~a25~0 13)) (.cse2 (<= ~a29~0 274)) (.cse9 (<= 130 ~a29~0)) (.cse29 (<= 260 ~a29~0)) (.cse22 (<= ~a25~0 10)) (.cse7 (<= ~a23~0 247)) (.cse4 (= ~a4~0 1))) (let ((.cse10 (<= 0 (+ 589264 ~a29~0))) (.cse8 (= ~a25~0 11)) (.cse20 (<= 21782 ~a23~0)) (.cse14 (<= ~a29~0 130)) (.cse15 (<= (+ ~a23~0 43) 0)) (.cse24 (<= 253 ~a29~0)) (.cse23 (<= 93781 ~a29~0)) (.cse16 (<= ~a25~0 9)) (.cse6 (<= 246 ~a29~0)) (.cse11 (<= (+ ~a23~0 55) 0)) (.cse17 (< 140 ~a29~0)) (.cse27 (<= ~a29~0 245)) (.cse13 (<= ~a4~0 0)) (.cse0 (<= ~a23~0 600000)) (.cse26 (= ~a25~0 10)) (.cse28 (let ((.cse30 (<= 115953 ~a29~0))) (or (and .cse1 .cse7 .cse2 .cse4 .cse9) (and .cse25 .cse18 .cse4 .cse21 .cse30) (and .cse25 .cse7 .cse2 .cse4 .cse9) (and .cse29 .cse7 .cse22 .cse4) (and .cse7 .cse4 .cse30)))) (.cse12 (<= 0 (+ ~a23~0 599772))) (.cse3 (= ~a3~0 1)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse4 .cse5 .cse9) (and .cse10 .cse11 .cse1 .cse12 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse3 .cse5 .cse13 .cse14) (and .cse1 .cse12 .cse7 .cse3 .cse4 .cse5) (and .cse15 (<= 10250 ~a29~0) .cse3 .cse16 .cse5) (and .cse5 (let ((.cse19 (<= ~a29~0 220))) (or (and .cse0 .cse1 .cse17 .cse18 .cse3 .cse19 .cse4) (and .cse0 .cse17 .cse8 .cse3 .cse19 .cse4) (and .cse0 .cse1 .cse17 .cse3 .cse20 .cse4 (<= ~a29~0 232)) (and .cse0 .cse17 .cse8 .cse3 .cse20 .cse4) (and .cse8 (<= 192 ~a29~0) .cse3 .cse4 .cse21)))) (and .cse12 (<= ~a29~0 140) .cse3 .cse4 .cse21 .cse16 .cse5) (and (or (and .cse15 .cse10 .cse8 .cse14) (and .cse15 .cse10 .cse22 .cse14)) .cse3 .cse5) (and .cse12 .cse8 .cse3 .cse4 .cse23 .cse5 .cse6) (and .cse12 .cse7 .cse8 .cse2 .cse3 .cse24 .cse5) (and .cse25 .cse15 .cse12 .cse2 .cse3 .cse24 .cse5) (and .cse3 .cse4 .cse23 .cse5 .cse26) (and .cse0 .cse12 .cse8 .cse3 .cse4 .cse5 .cse6) (and .cse25 .cse0 .cse17 .cse2 .cse3 .cse4 .cse5) (and .cse17 .cse22 .cse27 .cse3 .cse20 .cse4 .cse5) (and .cse17 (or (and .cse25 .cse12 .cse3 .cse4 .cse23 .cse21 .cse5) (and .cse28 .cse3 .cse5))) (and (or (and .cse25 .cse0 .cse12 .cse4 .cse14) (and .cse25 .cse0 .cse18 .cse4)) .cse3 .cse5) (and .cse0 (or (and .cse18 .cse3 .cse5 .cse6) (and .cse29 .cse3 .cse5)) .cse4 .cse16) (and .cse15 (or (and .cse1 .cse12 .cse2 .cse3 .cse5 .cse6) (and .cse1 .cse2 .cse3 .cse24 .cse5))) (and .cse0 .cse1 .cse18 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse4 .cse5 .cse26) (and (<= ~a29~0 275) .cse1 .cse3 .cse5 .cse6 .cse13) (and .cse3 .cse4 .cse23 .cse16 .cse5) (and .cse12 .cse7 .cse22 .cse3 .cse4 .cse5 .cse6) (and .cse11 .cse1 .cse17 .cse27 .cse3 .cse5 .cse13) (and .cse0 .cse3 .cse4 .cse5 .cse26) (and .cse28 .cse12 .cse3 .cse5)))) [2021-08-25 21:47:10,936 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-08-25 21:47:10,937 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,938 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,939 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,943 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,943 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,943 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-08-25 21:47:10,943 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-08-25 21:47:10,943 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-08-25 21:47:10,943 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,943 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,943 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,943 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:47:10,944 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:47:10,945 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,946 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-08-25 21:47:10,947 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-08-25 21:47:10,958 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 21:47:11,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:47:11 BoogieIcfgContainer [2021-08-25 21:47:11,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 21:47:11,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 21:47:11,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 21:47:11,045 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 21:47:11,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:45:02" (3/4) ... [2021-08-25 21:47:11,048 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 21:47:11,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 21:47:11,079 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 21:47:11,080 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:47:11,081 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:47:11,249 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 21:47:11,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 21:47:11,250 INFO L168 Benchmark]: Toolchain (without parser) took 131063.61 ms. Allocated memory was 58.7 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 40.0 MB in the beginning and 1.9 GB in the end (delta: -1.9 GB). Peak memory consumption was 835.6 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:11,251 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory was 28.5 MB in the beginning and 28.4 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 21:47:11,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.34 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 39.9 MB in the beginning and 52.0 MB in the end (delta: -12.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:11,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.97 ms. Allocated memory is still 75.5 MB. Free memory was 52.0 MB in the beginning and 44.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:11,251 INFO L168 Benchmark]: Boogie Preprocessor took 109.63 ms. Allocated memory is still 75.5 MB. Free memory was 44.0 MB in the beginning and 34.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:11,252 INFO L168 Benchmark]: RCFGBuilder took 1337.18 ms. Allocated memory was 75.5 MB in the beginning and 186.6 MB in the end (delta: 111.1 MB). Free memory was 34.4 MB in the beginning and 147.1 MB in the end (delta: -112.7 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:11,252 INFO L168 Benchmark]: TraceAbstraction took 128562.04 ms. Allocated memory was 186.6 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 146.1 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.1 GB. [2021-08-25 21:47:11,252 INFO L168 Benchmark]: Witness Printer took 204.69 ms. Allocated memory is still 2.8 GB. Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:47:11,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory was 28.5 MB in the beginning and 28.4 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 690.34 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 39.9 MB in the beginning and 52.0 MB in the end (delta: -12.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 153.97 ms. Allocated memory is still 75.5 MB. Free memory was 52.0 MB in the beginning and 44.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.63 ms. Allocated memory is still 75.5 MB. Free memory was 44.0 MB in the beginning and 34.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1337.18 ms. Allocated memory was 75.5 MB in the beginning and 186.6 MB in the end (delta: 111.1 MB). Free memory was 34.4 MB in the beginning and 147.1 MB in the end (delta: -112.7 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 128562.04 ms. Allocated memory was 186.6 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 146.1 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.1 GB. * Witness Printer took 204.69 ms. Allocated memory is still 2.8 GB. Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 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: 169]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 128437.4ms, OverallIterations: 35, TraceHistogramMax: 11, EmptinessCheckTime: 269.7ms, AutomataDifference: 44597.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 35634.2ms, InitialAbstractionConstructionTime: 9.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4990 SDtfs, 12235 SDslu, 1238 SDs, 0 SdLazy, 39020 SolverSat, 6004 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29928.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6748 GetRequests, 6605 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1212.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40028occurred in iteration=28, InterpolantAutomatonStates: 182, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6848.2ms AutomataMinimizationTime, 35 MinimizatonAttempts, 91538 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 159 NumberOfFragments, 1767 HoareAnnotationTreeSize, 3 FomulaSimplifications, 160240540 FormulaSimplificationTreeSizeReduction, 11530.8ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 13660032 FormulaSimplificationTreeSizeReductionInter, 24087.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 712.3ms SsaConstructionTime, 2316.8ms SatisfiabilityAnalysisTime, 26474.2ms InterpolantComputationTime, 22074 NumberOfCodeBlocks, 22074 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 22030 ConstructedInterpolants, 0 QuantifiedInterpolants, 80182 SizeOfPredicates, 15 NumberOfNonLiveVariables, 8586 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 44 InterpolantComputations, 30 PerfectInterpolantSequences, 42057/45397 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: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((a23 <= 600000 && a25 == 12) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29) || ((((a23 <= 247 && a25 == 11) && a4 == 1) && a8 == 15) && 130 <= a29)) || ((((((((0 <= 589264 + a29 && a23 + 55 <= 0) && a25 == 12) && 0 <= a23 + 599772) && !(3 == input)) && a3 == 1) && a8 == 15) && a4 <= 0) && a29 <= 130)) || (((((a25 == 12 && 0 <= a23 + 599772) && a23 <= 247) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a23 + 43 <= 0 && 10250 <= a29) && a3 == 1) && a25 <= 9) && a8 == 15)) || (a8 == 15 && ((((((((((a23 <= 600000 && a25 == 12) && 140 < a29) && 307 <= a23) && a3 == 1) && a29 <= 220) && a4 == 1) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && a29 <= 220) && a4 == 1)) || ((((((a23 <= 600000 && a25 == 12) && 140 < a29) && a3 == 1) && 21782 <= a23) && a4 == 1) && a29 <= 232)) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && 21782 <= a23) && a4 == 1)) || ((((a25 == 11 && 192 <= a29) && a3 == 1) && a4 == 1) && a23 <= 312)))) || ((((((0 <= a23 + 599772 && a29 <= 140) && a3 == 1) && a4 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || ((((((a23 + 43 <= 0 && 0 <= 589264 + a29) && a25 == 11) && a29 <= 130) || (((a23 + 43 <= 0 && 0 <= 589264 + a29) && a25 <= 10) && a29 <= 130)) && a3 == 1) && a8 == 15)) || ((((((0 <= a23 + 599772 && a25 == 11) && a3 == 1) && a4 == 1) && 93781 <= a29) && a8 == 15) && 246 <= a29)) || ((((((0 <= a23 + 599772 && a23 <= 247) && a25 == 11) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || ((((((a25 == 13 && a23 + 43 <= 0) && 0 <= a23 + 599772) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || ((((a3 == 1 && a4 == 1) && 93781 <= a29) && a8 == 15) && a25 == 10)) || ((((((a23 <= 600000 && 0 <= a23 + 599772) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((a25 == 13 && a23 <= 600000) && 140 < a29) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((140 < a29 && a25 <= 10) && a29 <= 245) && a3 == 1) && 21782 <= a23) && a4 == 1) && a8 == 15)) || (140 < a29 && (((((((a25 == 13 && 0 <= a23 + 599772) && a3 == 1) && a4 == 1) && 93781 <= a29) && a23 <= 312) && a8 == 15) || ((((((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && 307 <= a23) && a4 == 1) && a23 <= 312) && 115953 <= a29)) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (((260 <= a29 && a23 <= 247) && a25 <= 10) && a4 == 1)) || ((a23 <= 247 && a4 == 1) && 115953 <= a29)) && a3 == 1) && a8 == 15)))) || (((((((a25 == 13 && a23 <= 600000) && 0 <= a23 + 599772) && a4 == 1) && a29 <= 130) || (((a25 == 13 && a23 <= 600000) && 307 <= a23) && a4 == 1)) && a3 == 1) && a8 == 15)) || (((a23 <= 600000 && ((((307 <= a23 && a3 == 1) && a8 == 15) && 246 <= a29) || ((260 <= a29 && a3 == 1) && a8 == 15))) && a4 == 1) && a25 <= 9)) || (a23 + 43 <= 0 && ((((((a25 == 12 && 0 <= a23 + 599772) && a29 <= 274) && a3 == 1) && a8 == 15) && 246 <= a29) || ((((a25 == 12 && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)))) || ((((((a23 <= 600000 && a25 == 12) && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((a23 <= 247 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a29 <= 275 && a25 == 12) && a3 == 1) && a8 == 15) && 246 <= a29) && a4 <= 0)) || ((((a3 == 1 && a4 == 1) && 93781 <= a29) && a25 <= 9) && a8 == 15)) || ((((((0 <= a23 + 599772 && a23 <= 247) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((a23 + 55 <= 0 && a25 == 12) && 140 < a29) && a29 <= 245) && a3 == 1) && a8 == 15) && a4 <= 0)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10)) || (((((((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && 307 <= a23) && a4 == 1) && a23 <= 312) && 115953 <= a29)) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (((260 <= a29 && a23 <= 247) && a25 <= 10) && a4 == 1)) || ((a23 <= 247 && a4 == 1) && 115953 <= a29)) && 0 <= a23 + 599772) && a3 == 1) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((a23 <= 600000 && a25 == 12) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29) || ((((a23 <= 247 && a25 == 11) && a4 == 1) && a8 == 15) && 130 <= a29)) || ((((((((0 <= 589264 + a29 && a23 + 55 <= 0) && a25 == 12) && 0 <= a23 + 599772) && !(3 == input)) && a3 == 1) && a8 == 15) && a4 <= 0) && a29 <= 130)) || (((((a25 == 12 && 0 <= a23 + 599772) && a23 <= 247) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a23 + 43 <= 0 && 10250 <= a29) && a3 == 1) && a25 <= 9) && a8 == 15)) || (a8 == 15 && ((((((((((a23 <= 600000 && a25 == 12) && 140 < a29) && 307 <= a23) && a3 == 1) && a29 <= 220) && a4 == 1) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && a29 <= 220) && a4 == 1)) || ((((((a23 <= 600000 && a25 == 12) && 140 < a29) && a3 == 1) && 21782 <= a23) && a4 == 1) && a29 <= 232)) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && 21782 <= a23) && a4 == 1)) || ((((a25 == 11 && 192 <= a29) && a3 == 1) && a4 == 1) && a23 <= 312)))) || ((((((0 <= a23 + 599772 && a29 <= 140) && a3 == 1) && a4 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || ((((((a23 + 43 <= 0 && 0 <= 589264 + a29) && a25 == 11) && a29 <= 130) || (((a23 + 43 <= 0 && 0 <= 589264 + a29) && a25 <= 10) && a29 <= 130)) && a3 == 1) && a8 == 15)) || ((((((0 <= a23 + 599772 && a25 == 11) && a3 == 1) && a4 == 1) && 93781 <= a29) && a8 == 15) && 246 <= a29)) || ((((((0 <= a23 + 599772 && a23 <= 247) && a25 == 11) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || ((((((a25 == 13 && a23 + 43 <= 0) && 0 <= a23 + 599772) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || ((((a3 == 1 && a4 == 1) && 93781 <= a29) && a8 == 15) && a25 == 10)) || ((((((a23 <= 600000 && 0 <= a23 + 599772) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((a25 == 13 && a23 <= 600000) && 140 < a29) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((140 < a29 && a25 <= 10) && a29 <= 245) && a3 == 1) && 21782 <= a23) && a4 == 1) && a8 == 15)) || (140 < a29 && (((((((a25 == 13 && 0 <= a23 + 599772) && a3 == 1) && a4 == 1) && 93781 <= a29) && a23 <= 312) && a8 == 15) || ((((((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && 307 <= a23) && a4 == 1) && a23 <= 312) && 115953 <= a29)) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (((260 <= a29 && a23 <= 247) && a25 <= 10) && a4 == 1)) || ((a23 <= 247 && a4 == 1) && 115953 <= a29)) && a3 == 1) && a8 == 15)))) || (((((((a25 == 13 && a23 <= 600000) && 0 <= a23 + 599772) && a4 == 1) && a29 <= 130) || (((a25 == 13 && a23 <= 600000) && 307 <= a23) && a4 == 1)) && a3 == 1) && a8 == 15)) || (((a23 <= 600000 && ((((307 <= a23 && a3 == 1) && a8 == 15) && 246 <= a29) || ((260 <= a29 && a3 == 1) && a8 == 15))) && a4 == 1) && a25 <= 9)) || (a23 + 43 <= 0 && ((((((a25 == 12 && 0 <= a23 + 599772) && a29 <= 274) && a3 == 1) && a8 == 15) && 246 <= a29) || ((((a25 == 12 && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)))) || ((((((a23 <= 600000 && a25 == 12) && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((a23 <= 247 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a29 <= 275 && a25 == 12) && a3 == 1) && a8 == 15) && 246 <= a29) && a4 <= 0)) || ((((a3 == 1 && a4 == 1) && 93781 <= a29) && a25 <= 9) && a8 == 15)) || ((((((0 <= a23 + 599772 && a23 <= 247) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((a23 + 55 <= 0 && a25 == 12) && 140 < a29) && a29 <= 245) && a3 == 1) && a8 == 15) && a4 <= 0)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10)) || (((((((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && 307 <= a23) && a4 == 1) && a23 <= 312) && 115953 <= a29)) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (((260 <= a29 && a23 <= 247) && a25 <= 10) && a4 == 1)) || ((a23 <= 247 && a4 == 1) && 115953 <= a29)) && 0 <= a23 + 599772) && a3 == 1) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-25 21:47:11,317 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...