./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label06.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_label06.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 bdf3cc6adb4b0980aa9409bf67d6cc54080e6828 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:44:18,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 21:44:18,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 21:44:18,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 21:44:18,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 21:44:18,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 21:44:18,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 21:44:18,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 21:44:18,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 21:44:18,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 21:44:18,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 21:44:18,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 21:44:18,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 21:44:18,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 21:44:18,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 21:44:18,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 21:44:18,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 21:44:18,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 21:44:18,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 21:44:18,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 21:44:18,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 21:44:18,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 21:44:18,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 21:44:18,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 21:44:18,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 21:44:18,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 21:44:18,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 21:44:18,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 21:44:18,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 21:44:18,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 21:44:18,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 21:44:18,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 21:44:18,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 21:44:18,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 21:44:18,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 21:44:18,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 21:44:18,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 21:44:18,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 21:44:18,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 21:44:18,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 21:44:18,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 21:44:18,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 21:44:18,278 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 21:44:18,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 21:44:18,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 21:44:18,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 21:44:18,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 21:44:18,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 21:44:18,282 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 21:44:18,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 21:44:18,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 21:44:18,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 21:44:18,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 21:44:18,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 21:44:18,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 21:44:18,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 21:44:18,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 21:44:18,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 21:44:18,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 21:44:18,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 21:44:18,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 21:44:18,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 21:44:18,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 21:44:18,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 21:44:18,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:44:18,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 21:44:18,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 21:44:18,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 21:44:18,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 21:44:18,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 21:44:18,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 21:44:18,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 21:44:18,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdf3cc6adb4b0980aa9409bf67d6cc54080e6828 [2021-08-25 21:44:18,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 21:44:18,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 21:44:18,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 21:44:18,645 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 21:44:18,645 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 21:44:18,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label06.c [2021-08-25 21:44:18,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f35840706/d7e1b4932e7549319c442766f860b682/FLAGc584bebff [2021-08-25 21:44:19,201 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 21:44:19,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label06.c [2021-08-25 21:44:19,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f35840706/d7e1b4932e7549319c442766f860b682/FLAGc584bebff [2021-08-25 21:44:19,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f35840706/d7e1b4932e7549319c442766f860b682 [2021-08-25 21:44:19,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 21:44:19,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 21:44:19,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 21:44:19,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 21:44:19,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 21:44:19,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:44:19" (1/1) ... [2021-08-25 21:44:19,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a684053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:19, skipping insertion in model container [2021-08-25 21:44:19,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:44:19" (1/1) ... [2021-08-25 21:44:19,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 21:44:19,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 21:44:19,768 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_label06.c[9087,9100] [2021-08-25 21:44:20,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:44:20,092 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 21:44:20,126 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_label06.c[9087,9100] [2021-08-25 21:44:20,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:44:20,236 INFO L208 MainTranslator]: Completed translation [2021-08-25 21:44:20,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20 WrapperNode [2021-08-25 21:44:20,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 21:44:20,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 21:44:20,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 21:44:20,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 21:44:20,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 21:44:20,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 21:44:20,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 21:44:20,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 21:44:20,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 21:44:20,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 21:44:20,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 21:44:20,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 21:44:20,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (1/1) ... [2021-08-25 21:44:20,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:44:20,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:20,506 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 21:44:20,532 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 21:44:20,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 21:44:20,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 21:44:20,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 21:44:20,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 21:44:21,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 21:44:21,849 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 21:44:21,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:44:21 BoogieIcfgContainer [2021-08-25 21:44:21,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 21:44:21,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 21:44:21,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 21:44:21,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 21:44:21,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:44:19" (1/3) ... [2021-08-25 21:44:21,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b66269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:44:21, skipping insertion in model container [2021-08-25 21:44:21,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:20" (2/3) ... [2021-08-25 21:44:21,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b66269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:44:21, skipping insertion in model container [2021-08-25 21:44:21,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:44:21" (3/3) ... [2021-08-25 21:44:21,860 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label06.c [2021-08-25 21:44:21,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 21:44:21,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 21:44:21,930 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 21:44:21,937 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 21:44:21,938 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 21:44:21,962 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 21:44:21,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-25 21:44:21,970 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:21,971 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:21,971 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:21,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:21,976 INFO L82 PathProgramCache]: Analyzing trace with hash -696204111, now seen corresponding path program 1 times [2021-08-25 21:44:21,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:21,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882441473] [2021-08-25 21:44:21,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:21,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:22,210 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 21:44:22,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:22,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882441473] [2021-08-25 21:44:22,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882441473] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:22,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:22,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:44:22,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822522662] [2021-08-25 21:44:22,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:22,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:22,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:22,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:22,235 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 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 21:44:23,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:23,331 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-08-25 21:44:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:23,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-08-25 21:44:23,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:23,352 INFO L225 Difference]: With dead ends: 761 [2021-08-25 21:44:23,353 INFO L226 Difference]: Without dead ends: 413 [2021-08-25 21:44:23,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:23,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-08-25 21:44:23,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-08-25 21:44:23,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 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 21:44:23,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-08-25 21:44:23,425 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 63 [2021-08-25 21:44:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:23,426 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-08-25 21:44:23,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 21:44:23,427 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-08-25 21:44:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-08-25 21:44:23,436 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:23,437 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:23,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 21:44:23,437 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:23,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:23,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1774038808, now seen corresponding path program 1 times [2021-08-25 21:44:23,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:23,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828467270] [2021-08-25 21:44:23,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:23,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:23,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:23,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828467270] [2021-08-25 21:44:23,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828467270] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:23,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:23,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:44:23,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521999751] [2021-08-25 21:44:23,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:23,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:23,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:23,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:23,624 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 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 21:44:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:24,480 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-08-25 21:44:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:24,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-08-25 21:44:24,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:24,498 INFO L225 Difference]: With dead ends: 1211 [2021-08-25 21:44:24,499 INFO L226 Difference]: Without dead ends: 800 [2021-08-25 21:44:24,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:24,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-08-25 21:44:24,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-08-25 21:44:24,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3743654822335025) internal successors, (1083), 788 states have internal predecessors, (1083), 0 states have call successors, (0), 0 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 21:44:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2021-08-25 21:44:24,533 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 131 [2021-08-25 21:44:24,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:24,535 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2021-08-25 21:44:24,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 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 21:44:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2021-08-25 21:44:24,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-08-25 21:44:24,540 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:24,540 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:24,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 21:44:24,541 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:24,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:24,550 INFO L82 PathProgramCache]: Analyzing trace with hash -977289123, now seen corresponding path program 1 times [2021-08-25 21:44:24,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:24,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529875607] [2021-08-25 21:44:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:24,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:24,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:24,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529875607] [2021-08-25 21:44:24,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529875607] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:24,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:24,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:44:24,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309740930] [2021-08-25 21:44:24,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:24,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:24,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:24,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:24,695 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 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 21:44:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:25,470 INFO L93 Difference]: Finished difference Result 1945 states and 2612 transitions. [2021-08-25 21:44:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2021-08-25 21:44:25,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:25,476 INFO L225 Difference]: With dead ends: 1945 [2021-08-25 21:44:25,476 INFO L226 Difference]: Without dead ends: 1158 [2021-08-25 21:44:25,477 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:25,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-08-25 21:44:25,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2021-08-25 21:44:25,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2707612456747406) internal successors, (1469), 1156 states have internal predecessors, (1469), 0 states have call successors, (0), 0 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 21:44:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1469 transitions. [2021-08-25 21:44:25,499 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1469 transitions. Word has length 133 [2021-08-25 21:44:25,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:25,500 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1469 transitions. [2021-08-25 21:44:25,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 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 21:44:25,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1469 transitions. [2021-08-25 21:44:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-08-25 21:44:25,503 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:25,503 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:44:25,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 21:44:25,503 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:25,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:25,504 INFO L82 PathProgramCache]: Analyzing trace with hash -873825219, now seen corresponding path program 1 times [2021-08-25 21:44:25,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:25,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582756049] [2021-08-25 21:44:25,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:25,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:25,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:25,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582756049] [2021-08-25 21:44:25,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582756049] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:25,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:25,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:25,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098982302] [2021-08-25 21:44:25,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:25,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:25,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:25,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:25,612 INFO L87 Difference]: Start difference. First operand 1157 states and 1469 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 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 21:44:26,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:26,422 INFO L93 Difference]: Finished difference Result 2519 states and 3349 transitions. [2021-08-25 21:44:26,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:26,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2021-08-25 21:44:26,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:26,429 INFO L225 Difference]: With dead ends: 2519 [2021-08-25 21:44:26,429 INFO L226 Difference]: Without dead ends: 1548 [2021-08-25 21:44:26,431 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:26,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2021-08-25 21:44:26,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1545. [2021-08-25 21:44:26,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.2933937823834196) internal successors, (1997), 1544 states have internal predecessors, (1997), 0 states have call successors, (0), 0 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 21:44:26,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1997 transitions. [2021-08-25 21:44:26,458 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1997 transitions. Word has length 190 [2021-08-25 21:44:26,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:26,459 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 1997 transitions. [2021-08-25 21:44:26,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 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 21:44:26,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1997 transitions. [2021-08-25 21:44:26,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-08-25 21:44:26,463 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:26,463 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 21:44:26,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 21:44:26,464 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:26,464 INFO L82 PathProgramCache]: Analyzing trace with hash -2127494464, now seen corresponding path program 1 times [2021-08-25 21:44:26,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:26,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012259347] [2021-08-25 21:44:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:26,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-25 21:44:26,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:26,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012259347] [2021-08-25 21:44:26,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012259347] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:26,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:26,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:26,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678914841] [2021-08-25 21:44:26,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:26,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:26,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:26,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:26,574 INFO L87 Difference]: Start difference. First operand 1545 states and 1997 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 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 21:44:27,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:27,454 INFO L93 Difference]: Finished difference Result 3657 states and 4894 transitions. [2021-08-25 21:44:27,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:27,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 245 [2021-08-25 21:44:27,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:27,463 INFO L225 Difference]: With dead ends: 3657 [2021-08-25 21:44:27,463 INFO L226 Difference]: Without dead ends: 2298 [2021-08-25 21:44:27,466 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 21:44:27,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2021-08-25 21:44:27,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2112. [2021-08-25 21:44:27,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2112 states, 2111 states have (on average 1.2832780672666984) internal successors, (2709), 2111 states have internal predecessors, (2709), 0 states have call successors, (0), 0 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 21:44:27,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2709 transitions. [2021-08-25 21:44:27,514 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2709 transitions. Word has length 245 [2021-08-25 21:44:27,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:27,515 INFO L470 AbstractCegarLoop]: Abstraction has 2112 states and 2709 transitions. [2021-08-25 21:44:27,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 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 21:44:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2709 transitions. [2021-08-25 21:44:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-08-25 21:44:27,519 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:27,519 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-08-25 21:44:27,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 21:44:27,519 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:27,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:27,520 INFO L82 PathProgramCache]: Analyzing trace with hash -468248497, now seen corresponding path program 1 times [2021-08-25 21:44:27,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:27,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435183361] [2021-08-25 21:44:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:27,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:27,701 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 25 proven. 96 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-08-25 21:44:27,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:27,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435183361] [2021-08-25 21:44:27,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435183361] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:44:27,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112075957] [2021-08-25 21:44:27,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:27,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:27,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:27,709 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 21:44:27,745 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 21:44:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:27,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 21:44:27,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:44:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-08-25 21:44:28,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112075957] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:28,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:44:28,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:44:28,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370454850] [2021-08-25 21:44:28,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:28,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:28,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:28,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:44:28,713 INFO L87 Difference]: Start difference. First operand 2112 states and 2709 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 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 21:44:29,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:29,644 INFO L93 Difference]: Finished difference Result 4969 states and 6492 transitions. [2021-08-25 21:44:29,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:29,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 251 [2021-08-25 21:44:29,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:29,655 INFO L225 Difference]: With dead ends: 4969 [2021-08-25 21:44:29,655 INFO L226 Difference]: Without dead ends: 3043 [2021-08-25 21:44:29,657 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:44:29,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2021-08-25 21:44:29,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 3032. [2021-08-25 21:44:29,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3032 states, 3031 states have (on average 1.2464533157373805) internal successors, (3778), 3031 states have internal predecessors, (3778), 0 states have call successors, (0), 0 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 21:44:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3032 states to 3032 states and 3778 transitions. [2021-08-25 21:44:29,700 INFO L78 Accepts]: Start accepts. Automaton has 3032 states and 3778 transitions. Word has length 251 [2021-08-25 21:44:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:29,701 INFO L470 AbstractCegarLoop]: Abstraction has 3032 states and 3778 transitions. [2021-08-25 21:44:29,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 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 21:44:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3032 states and 3778 transitions. [2021-08-25 21:44:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-08-25 21:44:29,706 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:29,706 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2021-08-25 21:44:29,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 21:44:29,920 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,SelfDestructingSolverStorable5 [2021-08-25 21:44:29,921 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:29,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:29,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1730347281, now seen corresponding path program 1 times [2021-08-25 21:44:29,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:29,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984366055] [2021-08-25 21:44:29,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:29,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:30,081 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 121 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:30,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:30,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984366055] [2021-08-25 21:44:30,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984366055] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:44:30,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978114113] [2021-08-25 21:44:30,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:30,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:30,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:30,085 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 21:44:30,112 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 21:44:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:30,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 21:44:30,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:44:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:31,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978114113] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:31,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:44:31,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:44:31,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237925525] [2021-08-25 21:44:31,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:31,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:31,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:31,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:44:31,082 INFO L87 Difference]: Start difference. First operand 3032 states and 3778 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 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 21:44:31,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:31,853 INFO L93 Difference]: Finished difference Result 7004 states and 8858 transitions. [2021-08-25 21:44:31,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:31,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 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 276 [2021-08-25 21:44:31,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:31,866 INFO L225 Difference]: With dead ends: 7004 [2021-08-25 21:44:31,866 INFO L226 Difference]: Without dead ends: 4158 [2021-08-25 21:44:31,870 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:44:31,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4158 states. [2021-08-25 21:44:31,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4158 to 3953. [2021-08-25 21:44:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3953 states, 3952 states have (on average 1.249746963562753) internal successors, (4939), 3952 states have internal predecessors, (4939), 0 states have call successors, (0), 0 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 21:44:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3953 states to 3953 states and 4939 transitions. [2021-08-25 21:44:31,929 INFO L78 Accepts]: Start accepts. Automaton has 3953 states and 4939 transitions. Word has length 276 [2021-08-25 21:44:31,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:31,929 INFO L470 AbstractCegarLoop]: Abstraction has 3953 states and 4939 transitions. [2021-08-25 21:44:31,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 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 21:44:31,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 4939 transitions. [2021-08-25 21:44:31,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-08-25 21:44:31,936 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:31,936 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 21:44:31,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-25 21:44:32,164 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,SelfDestructingSolverStorable6 [2021-08-25 21:44:32,165 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:32,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:32,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1197677939, now seen corresponding path program 1 times [2021-08-25 21:44:32,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:32,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390051189] [2021-08-25 21:44:32,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:32,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:32,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:32,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390051189] [2021-08-25 21:44:32,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390051189] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:32,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:32,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:32,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95695929] [2021-08-25 21:44:32,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:44:32,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:32,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:44:32,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:32,292 INFO L87 Difference]: Start difference. First operand 3953 states and 4939 transitions. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 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 21:44:33,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:33,551 INFO L93 Difference]: Finished difference Result 11809 states and 15047 transitions. [2021-08-25 21:44:33,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:44:33,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 300 [2021-08-25 21:44:33,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:33,571 INFO L225 Difference]: With dead ends: 11809 [2021-08-25 21:44:33,571 INFO L226 Difference]: Without dead ends: 8042 [2021-08-25 21:44:33,575 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8042 states. [2021-08-25 21:44:33,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8042 to 8038. [2021-08-25 21:44:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8038 states, 8037 states have (on average 1.253203931815354) internal successors, (10072), 8037 states have internal predecessors, (10072), 0 states have call successors, (0), 0 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 21:44:33,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8038 states to 8038 states and 10072 transitions. [2021-08-25 21:44:33,697 INFO L78 Accepts]: Start accepts. Automaton has 8038 states and 10072 transitions. Word has length 300 [2021-08-25 21:44:33,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:33,697 INFO L470 AbstractCegarLoop]: Abstraction has 8038 states and 10072 transitions. [2021-08-25 21:44:33,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 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 21:44:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 8038 states and 10072 transitions. [2021-08-25 21:44:33,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-08-25 21:44:33,709 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:33,709 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, 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, 1, 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 21:44:33,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 21:44:33,710 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:33,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:33,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1365874858, now seen corresponding path program 1 times [2021-08-25 21:44:33,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:33,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241186902] [2021-08-25 21:44:33,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:33,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:33,798 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-08-25 21:44:33,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:33,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241186902] [2021-08-25 21:44:33,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241186902] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:33,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:33,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:33,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033959272] [2021-08-25 21:44:33,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:33,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:33,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:33,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:33,801 INFO L87 Difference]: Start difference. First operand 8038 states and 10072 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 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 21:44:34,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:34,611 INFO L93 Difference]: Finished difference Result 15912 states and 20000 transitions. [2021-08-25 21:44:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:34,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 341 [2021-08-25 21:44:34,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:34,649 INFO L225 Difference]: With dead ends: 15912 [2021-08-25 21:44:34,650 INFO L226 Difference]: Without dead ends: 8244 [2021-08-25 21:44:34,658 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 21:44:34,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8244 states. [2021-08-25 21:44:34,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8244 to 8222. [2021-08-25 21:44:34,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8222 states, 8221 states have (on average 1.229290840530349) internal successors, (10106), 8221 states have internal predecessors, (10106), 0 states have call successors, (0), 0 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 21:44:34,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8222 states to 8222 states and 10106 transitions. [2021-08-25 21:44:34,801 INFO L78 Accepts]: Start accepts. Automaton has 8222 states and 10106 transitions. Word has length 341 [2021-08-25 21:44:34,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:34,801 INFO L470 AbstractCegarLoop]: Abstraction has 8222 states and 10106 transitions. [2021-08-25 21:44:34,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 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 21:44:34,802 INFO L276 IsEmpty]: Start isEmpty. Operand 8222 states and 10106 transitions. [2021-08-25 21:44:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-08-25 21:44:34,810 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:34,811 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:34,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 21:44:34,811 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:34,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:34,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1487776732, now seen corresponding path program 1 times [2021-08-25 21:44:34,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:34,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514208896] [2021-08-25 21:44:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:34,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-08-25 21:44:34,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:34,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514208896] [2021-08-25 21:44:34,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514208896] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:34,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:34,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:34,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376464853] [2021-08-25 21:44:34,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:34,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:34,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:34,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:34,926 INFO L87 Difference]: Start difference. First operand 8222 states and 10106 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 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 21:44:35,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:35,679 INFO L93 Difference]: Finished difference Result 15663 states and 19310 transitions. [2021-08-25 21:44:35,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:35,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 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 342 [2021-08-25 21:44:35,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:35,692 INFO L225 Difference]: With dead ends: 15663 [2021-08-25 21:44:35,692 INFO L226 Difference]: Without dead ends: 7811 [2021-08-25 21:44:35,701 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 21:44:35,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7811 states. [2021-08-25 21:44:35,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7811 to 6703. [2021-08-25 21:44:35,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6703 states, 6702 states have (on average 1.1720381975529692) internal successors, (7855), 6702 states have internal predecessors, (7855), 0 states have call successors, (0), 0 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 21:44:35,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6703 states to 6703 states and 7855 transitions. [2021-08-25 21:44:35,791 INFO L78 Accepts]: Start accepts. Automaton has 6703 states and 7855 transitions. Word has length 342 [2021-08-25 21:44:35,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:35,791 INFO L470 AbstractCegarLoop]: Abstraction has 6703 states and 7855 transitions. [2021-08-25 21:44:35,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 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 21:44:35,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 7855 transitions. [2021-08-25 21:44:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-08-25 21:44:35,800 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:35,800 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, 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, 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] [2021-08-25 21:44:35,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 21:44:35,801 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:35,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:35,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1557749846, now seen corresponding path program 1 times [2021-08-25 21:44:35,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:35,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127936826] [2021-08-25 21:44:35,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:35,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-08-25 21:44:35,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:35,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127936826] [2021-08-25 21:44:35,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127936826] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:35,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:35,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:35,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762292067] [2021-08-25 21:44:35,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:35,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:35,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:35,941 INFO L87 Difference]: Start difference. First operand 6703 states and 7855 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 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 21:44:36,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:36,780 INFO L93 Difference]: Finished difference Result 13961 states and 16490 transitions. [2021-08-25 21:44:36,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:36,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 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 374 [2021-08-25 21:44:36,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:36,794 INFO L225 Difference]: With dead ends: 13961 [2021-08-25 21:44:36,794 INFO L226 Difference]: Without dead ends: 8368 [2021-08-25 21:44:36,801 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 21:44:36,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8368 states. [2021-08-25 21:44:36,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8368 to 8180. [2021-08-25 21:44:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8180 states, 8179 states have (on average 1.160166279496271) internal successors, (9489), 8179 states have internal predecessors, (9489), 0 states have call successors, (0), 0 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 21:44:36,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8180 states to 8180 states and 9489 transitions. [2021-08-25 21:44:36,910 INFO L78 Accepts]: Start accepts. Automaton has 8180 states and 9489 transitions. Word has length 374 [2021-08-25 21:44:36,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:36,910 INFO L470 AbstractCegarLoop]: Abstraction has 8180 states and 9489 transitions. [2021-08-25 21:44:36,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 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 21:44:36,911 INFO L276 IsEmpty]: Start isEmpty. Operand 8180 states and 9489 transitions. [2021-08-25 21:44:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-08-25 21:44:36,920 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:36,922 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:36,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-25 21:44:36,922 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:36,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:36,923 INFO L82 PathProgramCache]: Analyzing trace with hash -547751050, now seen corresponding path program 1 times [2021-08-25 21:44:36,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:36,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118036022] [2021-08-25 21:44:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:36,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:37,111 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:37,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:37,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118036022] [2021-08-25 21:44:37,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118036022] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:37,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:37,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:44:37,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589406733] [2021-08-25 21:44:37,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:44:37,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:37,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:44:37,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:37,114 INFO L87 Difference]: Start difference. First operand 8180 states and 9489 transitions. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 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 21:44:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:38,547 INFO L93 Difference]: Finished difference Result 22472 states and 26356 transitions. [2021-08-25 21:44:38,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:44:38,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 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 388 [2021-08-25 21:44:38,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:38,570 INFO L225 Difference]: With dead ends: 22472 [2021-08-25 21:44:38,571 INFO L226 Difference]: Without dead ends: 14662 [2021-08-25 21:44:38,579 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 21:44:38,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14662 states. [2021-08-25 21:44:38,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14662 to 13180. [2021-08-25 21:44:38,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13180 states, 13179 states have (on average 1.1493284771226953) internal successors, (15147), 13179 states have internal predecessors, (15147), 0 states have call successors, (0), 0 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 21:44:38,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13180 states to 13180 states and 15147 transitions. [2021-08-25 21:44:38,755 INFO L78 Accepts]: Start accepts. Automaton has 13180 states and 15147 transitions. Word has length 388 [2021-08-25 21:44:38,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:38,756 INFO L470 AbstractCegarLoop]: Abstraction has 13180 states and 15147 transitions. [2021-08-25 21:44:38,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 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 21:44:38,756 INFO L276 IsEmpty]: Start isEmpty. Operand 13180 states and 15147 transitions. [2021-08-25 21:44:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-08-25 21:44:38,772 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:38,772 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 21:44:38,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 21:44:38,772 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:38,773 INFO L82 PathProgramCache]: Analyzing trace with hash 677648061, now seen corresponding path program 1 times [2021-08-25 21:44:38,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:38,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505634304] [2021-08-25 21:44:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:38,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 182 proven. 171 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-08-25 21:44:38,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:38,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505634304] [2021-08-25 21:44:38,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505634304] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:44:38,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882109741] [2021-08-25 21:44:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:38,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:38,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:38,964 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 21:44:38,966 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 21:44:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:39,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:44:39,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:44:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-08-25 21:44:40,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882109741] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:40,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:44:40,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:44:40,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259671515] [2021-08-25 21:44:40,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:44:40,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:40,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:44:40,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:44:40,538 INFO L87 Difference]: Start difference. First operand 13180 states and 15147 transitions. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 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 21:44:41,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:41,892 INFO L93 Difference]: Finished difference Result 33181 states and 38451 transitions. [2021-08-25 21:44:41,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:44:41,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 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 398 [2021-08-25 21:44:41,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:41,915 INFO L225 Difference]: With dead ends: 33181 [2021-08-25 21:44:41,915 INFO L226 Difference]: Without dead ends: 20371 [2021-08-25 21:44:41,927 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:44:41,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20371 states. [2021-08-25 21:44:42,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20371 to 20177. [2021-08-25 21:44:42,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20177 states, 20176 states have (on average 1.1451724821570182) internal successors, (23105), 20176 states have internal predecessors, (23105), 0 states have call successors, (0), 0 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 21:44:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20177 states to 20177 states and 23105 transitions. [2021-08-25 21:44:42,179 INFO L78 Accepts]: Start accepts. Automaton has 20177 states and 23105 transitions. Word has length 398 [2021-08-25 21:44:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:42,180 INFO L470 AbstractCegarLoop]: Abstraction has 20177 states and 23105 transitions. [2021-08-25 21:44:42,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 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 21:44:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 20177 states and 23105 transitions. [2021-08-25 21:44:42,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-08-25 21:44:42,198 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:42,198 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 21:44:42,225 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 21:44:42,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:42,421 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:42,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:42,421 INFO L82 PathProgramCache]: Analyzing trace with hash -467739689, now seen corresponding path program 1 times [2021-08-25 21:44:42,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:42,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030850826] [2021-08-25 21:44:42,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:42,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-08-25 21:44:42,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:42,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030850826] [2021-08-25 21:44:42,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030850826] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:42,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:42,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:44:42,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655518964] [2021-08-25 21:44:42,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:42,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:42,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:42,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:42,547 INFO L87 Difference]: Start difference. First operand 20177 states and 23105 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 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 21:44:43,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:43,066 INFO L93 Difference]: Finished difference Result 37572 states and 43047 transitions. [2021-08-25 21:44:43,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:43,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 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 403 [2021-08-25 21:44:43,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:43,089 INFO L225 Difference]: With dead ends: 37572 [2021-08-25 21:44:43,090 INFO L226 Difference]: Without dead ends: 19057 [2021-08-25 21:44:43,106 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 21:44:43,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19057 states. [2021-08-25 21:44:43,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19057 to 19051. [2021-08-25 21:44:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19051 states, 19050 states have (on average 1.1410498687664041) internal successors, (21737), 19050 states have internal predecessors, (21737), 0 states have call successors, (0), 0 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 21:44:43,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19051 states to 19051 states and 21737 transitions. [2021-08-25 21:44:43,315 INFO L78 Accepts]: Start accepts. Automaton has 19051 states and 21737 transitions. Word has length 403 [2021-08-25 21:44:43,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:43,317 INFO L470 AbstractCegarLoop]: Abstraction has 19051 states and 21737 transitions. [2021-08-25 21:44:43,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 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 21:44:43,318 INFO L276 IsEmpty]: Start isEmpty. Operand 19051 states and 21737 transitions. [2021-08-25 21:44:43,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-08-25 21:44:43,333 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:43,333 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 21:44:43,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-25 21:44:43,334 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:43,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:43,334 INFO L82 PathProgramCache]: Analyzing trace with hash -522132587, now seen corresponding path program 1 times [2021-08-25 21:44:43,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:43,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973331153] [2021-08-25 21:44:43,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:43,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:43,484 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-08-25 21:44:43,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:43,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973331153] [2021-08-25 21:44:43,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973331153] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:43,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:43,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:43,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573965878] [2021-08-25 21:44:43,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:43,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:43,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:43,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:43,487 INFO L87 Difference]: Start difference. First operand 19051 states and 21737 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 21:44:44,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:44,307 INFO L93 Difference]: Finished difference Result 41048 states and 46908 transitions. [2021-08-25 21:44:44,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:44,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 403 [2021-08-25 21:44:44,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:44,332 INFO L225 Difference]: With dead ends: 41048 [2021-08-25 21:44:44,333 INFO L226 Difference]: Without dead ends: 22367 [2021-08-25 21:44:44,348 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 21:44:44,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22367 states. [2021-08-25 21:44:44,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22367 to 22363. [2021-08-25 21:44:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22363 states, 22362 states have (on average 1.136257937572668) internal successors, (25409), 22362 states have internal predecessors, (25409), 0 states have call successors, (0), 0 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 21:44:44,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22363 states to 22363 states and 25409 transitions. [2021-08-25 21:44:44,675 INFO L78 Accepts]: Start accepts. Automaton has 22363 states and 25409 transitions. Word has length 403 [2021-08-25 21:44:44,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:44,675 INFO L470 AbstractCegarLoop]: Abstraction has 22363 states and 25409 transitions. [2021-08-25 21:44:44,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 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 21:44:44,676 INFO L276 IsEmpty]: Start isEmpty. Operand 22363 states and 25409 transitions. [2021-08-25 21:44:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2021-08-25 21:44:44,700 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:44,700 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:44,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-25 21:44:44,700 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:44,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:44,701 INFO L82 PathProgramCache]: Analyzing trace with hash 392214559, now seen corresponding path program 1 times [2021-08-25 21:44:44,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:44,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282484958] [2021-08-25 21:44:44,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:44,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:44,826 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-08-25 21:44:44,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:44,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282484958] [2021-08-25 21:44:44,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282484958] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:44,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:44,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:44,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185832888] [2021-08-25 21:44:44,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:44,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:44,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:44,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:44,829 INFO L87 Difference]: Start difference. First operand 22363 states and 25409 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 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 21:44:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:45,725 INFO L93 Difference]: Finished difference Result 44719 states and 50876 transitions. [2021-08-25 21:44:45,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:45,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 486 [2021-08-25 21:44:45,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:45,746 INFO L225 Difference]: With dead ends: 44719 [2021-08-25 21:44:45,747 INFO L226 Difference]: Without dead ends: 22728 [2021-08-25 21:44:45,766 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:45,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22728 states. [2021-08-25 21:44:45,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22728 to 21985. [2021-08-25 21:44:45,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21985 states, 21984 states have (on average 1.115311135371179) internal successors, (24519), 21984 states have internal predecessors, (24519), 0 states have call successors, (0), 0 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 21:44:46,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21985 states to 21985 states and 24519 transitions. [2021-08-25 21:44:46,011 INFO L78 Accepts]: Start accepts. Automaton has 21985 states and 24519 transitions. Word has length 486 [2021-08-25 21:44:46,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:46,011 INFO L470 AbstractCegarLoop]: Abstraction has 21985 states and 24519 transitions. [2021-08-25 21:44:46,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 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 21:44:46,012 INFO L276 IsEmpty]: Start isEmpty. Operand 21985 states and 24519 transitions. [2021-08-25 21:44:46,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2021-08-25 21:44:46,029 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:46,029 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:46,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 21:44:46,030 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:46,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:46,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1205511744, now seen corresponding path program 1 times [2021-08-25 21:44:46,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:46,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564603548] [2021-08-25 21:44:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:46,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:46,315 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 455 proven. 85 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-25 21:44:46,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:46,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564603548] [2021-08-25 21:44:46,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564603548] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:44:46,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875529191] [2021-08-25 21:44:46,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:46,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:46,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:46,318 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 21:44:46,319 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 21:44:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:46,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:44:46,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:44:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 540 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-25 21:44:48,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875529191] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:48,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:44:48,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:44:48,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789692392] [2021-08-25 21:44:48,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:48,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:48,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:48,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:44:48,616 INFO L87 Difference]: Start difference. First operand 21985 states and 24519 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:44:49,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:49,338 INFO L93 Difference]: Finished difference Result 43050 states and 48046 transitions. [2021-08-25 21:44:49,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:49,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 509 [2021-08-25 21:44:49,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:49,363 INFO L225 Difference]: With dead ends: 43050 [2021-08-25 21:44:49,364 INFO L226 Difference]: Without dead ends: 22911 [2021-08-25 21:44:49,407 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 106.5ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:44:49,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22911 states. [2021-08-25 21:44:49,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22911 to 22537. [2021-08-25 21:44:49,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22537 states, 22536 states have (on average 1.1107561235356762) internal successors, (25032), 22536 states have internal predecessors, (25032), 0 states have call successors, (0), 0 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 21:44:49,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22537 states to 22537 states and 25032 transitions. [2021-08-25 21:44:49,584 INFO L78 Accepts]: Start accepts. Automaton has 22537 states and 25032 transitions. Word has length 509 [2021-08-25 21:44:49,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:49,584 INFO L470 AbstractCegarLoop]: Abstraction has 22537 states and 25032 transitions. [2021-08-25 21:44:49,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:44:49,585 INFO L276 IsEmpty]: Start isEmpty. Operand 22537 states and 25032 transitions. [2021-08-25 21:44:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-08-25 21:44:49,603 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:49,603 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:49,629 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 21:44:49,828 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,SelfDestructingSolverStorable16 [2021-08-25 21:44:49,829 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:49,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:49,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1083496193, now seen corresponding path program 1 times [2021-08-25 21:44:49,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:49,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764714636] [2021-08-25 21:44:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:49,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 516 proven. 24 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-25 21:44:50,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:50,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764714636] [2021-08-25 21:44:50,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764714636] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:44:50,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943353277] [2021-08-25 21:44:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:50,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:50,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:50,100 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 21:44:50,101 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 21:44:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:50,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:44:50,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:44:52,436 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 540 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-25 21:44:52,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943353277] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:52,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:44:52,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-08-25 21:44:52,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555785919] [2021-08-25 21:44:52,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:44:52,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:52,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:44:52,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:44:52,439 INFO L87 Difference]: Start difference. First operand 22537 states and 25032 transitions. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 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 21:44:53,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:53,467 INFO L93 Difference]: Finished difference Result 47278 states and 52386 transitions. [2021-08-25 21:44:53,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:44:53,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 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 510 [2021-08-25 21:44:53,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:53,492 INFO L225 Difference]: With dead ends: 47278 [2021-08-25 21:44:53,492 INFO L226 Difference]: Without dead ends: 25111 [2021-08-25 21:44:53,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 40.2ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:44:53,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25111 states. [2021-08-25 21:44:53,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25111 to 21975. [2021-08-25 21:44:53,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21975 states, 21974 states have (on average 1.1055338126877219) internal successors, (24293), 21974 states have internal predecessors, (24293), 0 states have call successors, (0), 0 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 21:44:53,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21975 states to 21975 states and 24293 transitions. [2021-08-25 21:44:53,706 INFO L78 Accepts]: Start accepts. Automaton has 21975 states and 24293 transitions. Word has length 510 [2021-08-25 21:44:53,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:53,707 INFO L470 AbstractCegarLoop]: Abstraction has 21975 states and 24293 transitions. [2021-08-25 21:44:53,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 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 21:44:53,707 INFO L276 IsEmpty]: Start isEmpty. Operand 21975 states and 24293 transitions. [2021-08-25 21:44:53,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-08-25 21:44:53,726 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:53,726 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 21:44:53,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-25 21:44:53,940 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,SelfDestructingSolverStorable17 [2021-08-25 21:44:53,941 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:53,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:53,941 INFO L82 PathProgramCache]: Analyzing trace with hash 742788827, now seen corresponding path program 1 times [2021-08-25 21:44:53,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:53,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559562715] [2021-08-25 21:44:53,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:53,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:54,108 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2021-08-25 21:44:54,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:54,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559562715] [2021-08-25 21:44:54,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559562715] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:54,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:54,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:54,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112992256] [2021-08-25 21:44:54,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:54,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:54,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:54,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:54,113 INFO L87 Difference]: Start difference. First operand 21975 states and 24293 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 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 21:44:54,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:54,879 INFO L93 Difference]: Finished difference Result 46152 states and 51077 transitions. [2021-08-25 21:44:54,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:54,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 537 [2021-08-25 21:44:54,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:54,899 INFO L225 Difference]: With dead ends: 46152 [2021-08-25 21:44:54,899 INFO L226 Difference]: Without dead ends: 24547 [2021-08-25 21:44:54,908 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 21:44:54,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24547 states. [2021-08-25 21:44:55,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24547 to 16633. [2021-08-25 21:44:55,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16633 states, 16632 states have (on average 1.0967412217412218) internal successors, (18241), 16632 states have internal predecessors, (18241), 0 states have call successors, (0), 0 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 21:44:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16633 states to 16633 states and 18241 transitions. [2021-08-25 21:44:55,117 INFO L78 Accepts]: Start accepts. Automaton has 16633 states and 18241 transitions. Word has length 537 [2021-08-25 21:44:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:55,117 INFO L470 AbstractCegarLoop]: Abstraction has 16633 states and 18241 transitions. [2021-08-25 21:44:55,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 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 21:44:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 16633 states and 18241 transitions. [2021-08-25 21:44:55,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2021-08-25 21:44:55,139 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:55,140 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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 21:44:55,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-25 21:44:55,140 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:55,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1763189104, now seen corresponding path program 1 times [2021-08-25 21:44:55,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:55,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355991045] [2021-08-25 21:44:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:55,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1778 backedges. 1286 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2021-08-25 21:44:55,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:55,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355991045] [2021-08-25 21:44:55,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355991045] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:55,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:55,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:55,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465307921] [2021-08-25 21:44:55,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:55,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:55,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:55,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:55,336 INFO L87 Difference]: Start difference. First operand 16633 states and 18241 transitions. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 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 21:44:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:56,014 INFO L93 Difference]: Finished difference Result 34941 states and 38332 transitions. [2021-08-25 21:44:56,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:56,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 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 731 [2021-08-25 21:44:56,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:56,035 INFO L225 Difference]: With dead ends: 34941 [2021-08-25 21:44:56,035 INFO L226 Difference]: Without dead ends: 18494 [2021-08-25 21:44:56,046 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:56,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18494 states. [2021-08-25 21:44:56,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18494 to 18105. [2021-08-25 21:44:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18105 states, 18104 states have (on average 1.090974370304905) internal successors, (19751), 18104 states have internal predecessors, (19751), 0 states have call successors, (0), 0 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 21:44:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18105 states to 18105 states and 19751 transitions. [2021-08-25 21:44:56,216 INFO L78 Accepts]: Start accepts. Automaton has 18105 states and 19751 transitions. Word has length 731 [2021-08-25 21:44:56,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:56,217 INFO L470 AbstractCegarLoop]: Abstraction has 18105 states and 19751 transitions. [2021-08-25 21:44:56,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 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 21:44:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 18105 states and 19751 transitions. [2021-08-25 21:44:56,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2021-08-25 21:44:56,235 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:56,235 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 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] [2021-08-25 21:44:56,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-25 21:44:56,236 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:56,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:56,236 INFO L82 PathProgramCache]: Analyzing trace with hash 2044993265, now seen corresponding path program 1 times [2021-08-25 21:44:56,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:56,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011691959] [2021-08-25 21:44:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:56,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1777 backedges. 1159 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2021-08-25 21:44:56,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:56,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011691959] [2021-08-25 21:44:56,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011691959] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:56,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:56,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:56,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431066708] [2021-08-25 21:44:56,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:56,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:56,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:56,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:56,432 INFO L87 Difference]: Start difference. First operand 18105 states and 19751 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 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 21:44:57,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:57,141 INFO L93 Difference]: Finished difference Result 34359 states and 37378 transitions. [2021-08-25 21:44:57,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:57,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 732 [2021-08-25 21:44:57,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:57,143 INFO L225 Difference]: With dead ends: 34359 [2021-08-25 21:44:57,143 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 21:44:57,155 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 21:44:57,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 21:44:57,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 21:44:57,156 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 21:44:57,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 21:44:57,157 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 732 [2021-08-25 21:44:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:57,157 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 21:44:57,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 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 21:44:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 21:44:57,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 21:44:57,160 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 21:44:57,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-25 21:44:57,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 21:44:57,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:44:57,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:44:57,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:44:59,404 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:44:59,404 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,404 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:44:59,404 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,404 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,404 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,405 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,405 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,405 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,405 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-08-25 21:44:59,405 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-08-25 21:44:59,405 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-08-25 21:44:59,405 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,405 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,405 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,406 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,406 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,406 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,406 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,406 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,406 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,406 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,406 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-08-25 21:44:59,407 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-08-25 21:44:59,407 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-08-25 21:44:59,407 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,407 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:44:59,407 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:44:59,407 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,407 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,407 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,408 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,408 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,408 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,408 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-08-25 21:44:59,408 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-08-25 21:44:59,408 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-08-25 21:44:59,408 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,408 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse9 (< 0 (+ ~a23~0 43))) (.cse10 (<= ~a23~0 138)) (.cse11 (<= 13 ~a25~0)) (.cse7 (<= (+ 28470 ~a29~0) 0)) (.cse13 (= ~a25~0 10)) (.cse12 (<= ~a29~0 140)) (.cse8 (<= ~a25~0 9)) (.cse14 (= ~a25~0 12)) (.cse0 (<= 261 ~a29~0)) (.cse1 (= ~a4~0 0)) (.cse15 (= ~a25~0 11)) (.cse2 (<= ~a25~0 10)) (.cse6 (<= 130 ~a29~0)) (.cse3 (<= ~a8~0 15)) (.cse16 (<= 12 ~a25~0)) (.cse5 (= ~a4~0 1)) (.cse4 (<= ~a23~0 312))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse3 (<= ~a29~0 220) .cse5 (<= 312 ~a23~0) .cse6) (and .cse1 .cse3 .cse7 .cse4 .cse8) (and .cse3 .cse5 (<= 246 ~a29~0)) (and .cse3 (<= 0 (+ 41 ~a23~0)) .cse5 .cse4) (and .cse1 .cse9 .cse3 .cse10 .cse11) (and .cse12 .cse1 .cse9 .cse3 .cse10) (and .cse3 .cse5 .cse11) (and .cse12 .cse1 .cse3 .cse13) (and .cse14 .cse1 .cse3 .cse6) (and .cse14 .cse3 .cse7 .cse5) (and .cse3 .cse5 .cse13) (and .cse12 .cse1 .cse15 .cse3 .cse4) (and .cse14 .cse1 .cse3 .cse4) (and .cse3 .cse5 .cse4 .cse8) (and .cse3 .cse16 .cse5 .cse6) (and .cse14 .cse1 .cse3 (<= (+ ~a29~0 554036) 0)) (and .cse0 .cse1 .cse15 .cse3 .cse4) (and .cse2 .cse3 .cse5 .cse6) (and .cse3 .cse16 .cse5 .cse4))) [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-08-25 21:44:59,409 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-08-25 21:44:59,409 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,410 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,411 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,411 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,411 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-08-25 21:44:59,411 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-08-25 21:44:59,411 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-08-25 21:44:59,411 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,411 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse9 (< 0 (+ ~a23~0 43))) (.cse10 (<= ~a23~0 138)) (.cse11 (<= 13 ~a25~0)) (.cse7 (<= (+ 28470 ~a29~0) 0)) (.cse13 (= ~a25~0 10)) (.cse12 (<= ~a29~0 140)) (.cse8 (<= ~a25~0 9)) (.cse14 (= ~a25~0 12)) (.cse0 (<= 261 ~a29~0)) (.cse1 (= ~a4~0 0)) (.cse15 (= ~a25~0 11)) (.cse2 (<= ~a25~0 10)) (.cse6 (<= 130 ~a29~0)) (.cse3 (<= ~a8~0 15)) (.cse16 (<= 12 ~a25~0)) (.cse5 (= ~a4~0 1)) (.cse4 (<= ~a23~0 312))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse3 (<= ~a29~0 220) .cse5 (<= 312 ~a23~0) .cse6) (and .cse1 .cse3 .cse7 .cse4 .cse8) (and .cse3 .cse5 (<= 246 ~a29~0)) (and .cse3 (<= 0 (+ 41 ~a23~0)) .cse5 .cse4) (and .cse1 .cse9 .cse3 .cse10 .cse11) (and .cse12 .cse1 .cse9 .cse3 .cse10) (and .cse3 .cse5 .cse11) (and .cse12 .cse1 .cse3 .cse13) (and .cse14 .cse1 .cse3 .cse6) (and .cse14 .cse3 .cse7 .cse5) (and .cse3 .cse5 .cse13) (and .cse12 .cse1 .cse15 .cse3 .cse4) (and .cse14 .cse1 .cse3 .cse4) (and .cse3 .cse5 .cse4 .cse8) (and .cse3 .cse16 .cse5 .cse6) (and .cse14 .cse1 .cse3 (<= (+ ~a29~0 554036) 0)) (and .cse0 .cse1 .cse15 .cse3 .cse4) (and .cse2 .cse3 .cse5 .cse6) (and .cse3 .cse16 .cse5 .cse4))) [2021-08-25 21:44:59,411 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,412 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,412 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,412 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,412 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,412 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,412 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,412 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,412 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-08-25 21:44:59,413 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-08-25 21:44:59,413 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-08-25 21:44:59,413 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:44:59,413 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:44:59,413 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:44:59,413 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:44:59,413 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,413 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,414 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,414 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,414 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,414 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,414 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,414 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,414 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,414 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,415 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 21:44:59,415 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-08-25 21:44:59,415 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-08-25 21:44:59,415 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-08-25 21:44:59,415 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-08-25 21:44:59,415 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,415 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,416 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,416 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,416 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,416 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-08-25 21:44:59,416 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-08-25 21:44:59,416 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-08-25 21:44:59,416 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,416 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,417 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,417 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,417 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:44:59,417 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:44:59,417 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,417 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,417 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,417 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,417 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,418 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,418 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:44:59,418 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:44:59,418 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,418 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,418 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-08-25 21:44:59,418 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-08-25 21:44:59,418 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-08-25 21:44:59,419 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 21:44:59,419 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-08-25 21:44:59,419 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,419 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,419 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,419 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,419 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,419 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,420 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,420 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-08-25 21:44:59,420 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-08-25 21:44:59,420 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-08-25 21:44:59,420 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:44:59,420 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:44:59,420 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:44:59,420 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:44:59,421 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,421 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,421 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:44:59,421 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:44:59,421 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,421 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,421 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,421 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,421 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,422 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-08-25 21:44:59,422 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-08-25 21:44:59,422 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-08-25 21:44:59,422 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,422 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,422 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,422 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,422 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,423 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,423 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-08-25 21:44:59,423 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-08-25 21:44:59,423 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-08-25 21:44:59,423 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,423 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,423 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,423 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,424 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,424 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,424 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,424 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,424 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-08-25 21:44:59,424 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-08-25 21:44:59,424 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-08-25 21:44:59,424 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,425 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,425 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,425 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,425 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,425 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,425 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,425 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,425 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,425 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,426 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,426 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:44:59,426 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:44:59,426 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-08-25 21:44:59,426 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-08-25 21:44:59,426 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-08-25 21:44:59,426 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,426 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,427 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,427 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,427 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,427 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,427 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,427 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-08-25 21:44:59,427 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-08-25 21:44:59,427 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-25 21:44:59,427 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,428 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,428 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,428 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:44:59,428 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:44:59,428 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,428 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,428 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,428 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,429 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,429 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-08-25 21:44:59,429 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-08-25 21:44:59,429 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,429 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,429 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:44:59,429 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:44:59,429 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,430 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 21:44:59,430 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,430 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,430 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,430 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,430 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,430 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-08-25 21:44:59,430 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-08-25 21:44:59,430 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:44:59,431 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:44:59,431 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,431 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,431 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,431 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,431 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,431 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,431 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,432 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,432 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-08-25 21:44:59,432 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-08-25 21:44:59,432 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:44:59,432 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:44:59,432 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:44:59,432 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:44:59,433 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,433 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,433 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,433 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,433 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,433 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,433 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,433 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-08-25 21:44:59,434 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-08-25 21:44:59,434 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 21:44:59,434 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,434 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,434 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,434 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,434 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,434 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,435 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-08-25 21:44:59,435 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-08-25 21:44:59,435 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,435 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,435 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,435 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,435 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,435 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,436 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,436 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-08-25 21:44:59,436 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:44:59,436 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,436 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,436 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-08-25 21:44:59,436 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-08-25 21:44:59,436 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-08-25 21:44:59,436 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-08-25 21:44:59,440 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 21:44:59,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:44:59 BoogieIcfgContainer [2021-08-25 21:44:59,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 21:44:59,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 21:44:59,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 21:44:59,458 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 21:44:59,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:44:21" (3/4) ... [2021-08-25 21:44:59,461 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 21:44:59,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 21:44:59,483 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 21:44:59,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:44:59,485 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:44:59,614 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 21:44:59,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 21:44:59,616 INFO L168 Benchmark]: Toolchain (without parser) took 40138.29 ms. Allocated memory was 58.7 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 34.9 MB in the beginning and 980.4 MB in the end (delta: -945.5 MB). Peak memory consumption was 295.4 MB. Max. memory is 16.1 GB. [2021-08-25 21:44:59,617 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 41.2 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 21:44:59,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.04 ms. Allocated memory was 58.7 MB in the beginning and 83.9 MB in the end (delta: 25.2 MB). Free memory was 34.8 MB in the beginning and 46.8 MB in the end (delta: -12.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:44:59,617 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.00 ms. Allocated memory is still 83.9 MB. Free memory was 46.8 MB in the beginning and 45.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-08-25 21:44:59,618 INFO L168 Benchmark]: Boogie Preprocessor took 115.67 ms. Allocated memory is still 83.9 MB. Free memory was 45.5 MB in the beginning and 47.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-08-25 21:44:59,618 INFO L168 Benchmark]: RCFGBuilder took 1373.64 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 47.9 MB in the beginning and 39.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:44:59,618 INFO L168 Benchmark]: TraceAbstraction took 37603.88 ms. Allocated memory was 107.0 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 39.3 MB in the beginning and 1.0 GB in the end (delta: -966.0 MB). Peak memory consumption was 912.0 MB. Max. memory is 16.1 GB. [2021-08-25 21:44:59,619 INFO L168 Benchmark]: Witness Printer took 156.53 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 980.4 MB in the end (delta: 24.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-08-25 21:44:59,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 41.2 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 761.04 ms. Allocated memory was 58.7 MB in the beginning and 83.9 MB in the end (delta: 25.2 MB). Free memory was 34.8 MB in the beginning and 46.8 MB in the end (delta: -12.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.00 ms. Allocated memory is still 83.9 MB. Free memory was 46.8 MB in the beginning and 45.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.67 ms. Allocated memory is still 83.9 MB. Free memory was 45.5 MB in the beginning and 47.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1373.64 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 47.9 MB in the beginning and 39.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 37603.88 ms. Allocated memory was 107.0 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 39.3 MB in the beginning and 1.0 GB in the end (delta: -966.0 MB). Peak memory consumption was 912.0 MB. Max. memory is 16.1 GB. * Witness Printer took 156.53 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 980.4 MB in the end (delta: 24.9 MB). Peak memory consumption was 23.1 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: 205]: 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: 37511.6ms, OverallIterations: 21, TraceHistogramMax: 7, EmptinessCheckTime: 249.7ms, AutomataDifference: 19332.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2243.4ms, InitialAbstractionConstructionTime: 17.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4017 SDtfs, 3294 SDslu, 515 SDs, 0 SdLazy, 13276 SolverSat, 2210 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13090.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2005 GetRequests, 1964 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 246.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22537occurred in iteration=17, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2708.2ms AutomataMinimizationTime, 21 MinimizatonAttempts, 15981 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 203 NumberOfFragments, 571 HoareAnnotationTreeSize, 3 FomulaSimplifications, 9996 FormulaSimplificationTreeSizeReduction, 467.8ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 4596 FormulaSimplificationTreeSizeReductionInter, 1764.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 365.0ms SsaConstructionTime, 1160.5ms SatisfiabilityAnalysisTime, 8486.5ms InterpolantComputationTime, 9687 NumberOfCodeBlocks, 9687 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 9661 ConstructedInterpolants, 0 QuantifiedInterpolants, 28297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2718 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 26 InterpolantComputations, 21 PerfectInterpolantSequences, 13138/13599 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: ((((((((((((((((((((((261 <= a29 && a4 == 0) && a25 <= 10) && a8 <= 15) && a23 <= 312) || ((((a8 <= 15 && a29 <= 220) && a4 == 1) && 312 <= a23) && 130 <= a29)) || ((((a4 == 0 && a8 <= 15) && 28470 + a29 <= 0) && a23 <= 312) && a25 <= 9)) || ((a8 <= 15 && a4 == 1) && 246 <= a29)) || (((a8 <= 15 && 0 <= 41 + a23) && a4 == 1) && a23 <= 312)) || ((((a4 == 0 && 0 < a23 + 43) && a8 <= 15) && a23 <= 138) && 13 <= a25)) || ((((a29 <= 140 && a4 == 0) && 0 < a23 + 43) && a8 <= 15) && a23 <= 138)) || ((a8 <= 15 && a4 == 1) && 13 <= a25)) || (((a29 <= 140 && a4 == 0) && a8 <= 15) && a25 == 10)) || (((a25 == 12 && a4 == 0) && a8 <= 15) && 130 <= a29)) || (((a25 == 12 && a8 <= 15) && 28470 + a29 <= 0) && a4 == 1)) || ((a8 <= 15 && a4 == 1) && a25 == 10)) || ((((a29 <= 140 && a4 == 0) && a25 == 11) && a8 <= 15) && a23 <= 312)) || (((a25 == 12 && a4 == 0) && a8 <= 15) && a23 <= 312)) || (((a8 <= 15 && a4 == 1) && a23 <= 312) && a25 <= 9)) || (((a8 <= 15 && 12 <= a25) && a4 == 1) && 130 <= a29)) || (((a25 == 12 && a4 == 0) && a8 <= 15) && a29 + 554036 <= 0)) || ((((261 <= a29 && a4 == 0) && a25 == 11) && a8 <= 15) && a23 <= 312)) || (((a25 <= 10 && a8 <= 15) && a4 == 1) && 130 <= a29)) || (((a8 <= 15 && 12 <= a25) && a4 == 1) && a23 <= 312) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((261 <= a29 && a4 == 0) && a25 <= 10) && a8 <= 15) && a23 <= 312) || ((((a8 <= 15 && a29 <= 220) && a4 == 1) && 312 <= a23) && 130 <= a29)) || ((((a4 == 0 && a8 <= 15) && 28470 + a29 <= 0) && a23 <= 312) && a25 <= 9)) || ((a8 <= 15 && a4 == 1) && 246 <= a29)) || (((a8 <= 15 && 0 <= 41 + a23) && a4 == 1) && a23 <= 312)) || ((((a4 == 0 && 0 < a23 + 43) && a8 <= 15) && a23 <= 138) && 13 <= a25)) || ((((a29 <= 140 && a4 == 0) && 0 < a23 + 43) && a8 <= 15) && a23 <= 138)) || ((a8 <= 15 && a4 == 1) && 13 <= a25)) || (((a29 <= 140 && a4 == 0) && a8 <= 15) && a25 == 10)) || (((a25 == 12 && a4 == 0) && a8 <= 15) && 130 <= a29)) || (((a25 == 12 && a8 <= 15) && 28470 + a29 <= 0) && a4 == 1)) || ((a8 <= 15 && a4 == 1) && a25 == 10)) || ((((a29 <= 140 && a4 == 0) && a25 == 11) && a8 <= 15) && a23 <= 312)) || (((a25 == 12 && a4 == 0) && a8 <= 15) && a23 <= 312)) || (((a8 <= 15 && a4 == 1) && a23 <= 312) && a25 <= 9)) || (((a8 <= 15 && 12 <= a25) && a4 == 1) && 130 <= a29)) || (((a25 == 12 && a4 == 0) && a8 <= 15) && a29 + 554036 <= 0)) || ((((261 <= a29 && a4 == 0) && a25 == 11) && a8 <= 15) && a23 <= 312)) || (((a25 <= 10 && a8 <= 15) && a4 == 1) && 130 <= a29)) || (((a8 <= 15 && 12 <= a25) && a4 == 1) && a23 <= 312) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-25 21:44:59,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...