./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/product-lines/minepump_spec2_product41.cil.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 64b6967f526946e3373ac9378676a7e29d538a50 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 16:14:55,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 16:14:55,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 16:14:55,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 16:14:55,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 16:14:55,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 16:14:55,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 16:14:55,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 16:14:55,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 16:14:55,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 16:14:55,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 16:14:55,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 16:14:55,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 16:14:55,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 16:14:55,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 16:14:55,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 16:14:55,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 16:14:55,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 16:14:55,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 16:14:55,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 16:14:55,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 16:14:55,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 16:14:55,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 16:14:55,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 16:14:55,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 16:14:55,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 16:14:55,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 16:14:55,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 16:14:55,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 16:14:55,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 16:14:55,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 16:14:55,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 16:14:55,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 16:14:55,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 16:14:55,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 16:14:55,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 16:14:55,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 16:14:55,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 16:14:55,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 16:14:55,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 16:14:55,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 16:14:55,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 16:14:55,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 16:14:55,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 16:14:55,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 16:14:55,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 16:14:55,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 16:14:55,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 16:14:55,485 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 16:14:55,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 16:14:55,486 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 16:14:55,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 16:14:55,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 16:14:55,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 16:14:55,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 16:14:55,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 16:14:55,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 16:14:55,487 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 16:14:55,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 16:14:55,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 16:14:55,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 16:14:55,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 16:14:55,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 16:14:55,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 16:14:55,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:14:55,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 16:14:55,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 16:14:55,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 16:14:55,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 16:14:55,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 16:14:55,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 16:14:55,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 16:14:55,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b6967f526946e3373ac9378676a7e29d538a50 [2021-08-29 16:14:55,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 16:14:55,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 16:14:55,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 16:14:55,771 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 16:14:55,772 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 16:14:55,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2021-08-29 16:14:55,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5676626f8/1c3c05fd5bd543c988d4bb56250bc15a/FLAG1bde30e5d [2021-08-29 16:14:56,222 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 16:14:56,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2021-08-29 16:14:56,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5676626f8/1c3c05fd5bd543c988d4bb56250bc15a/FLAG1bde30e5d [2021-08-29 16:14:56,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5676626f8/1c3c05fd5bd543c988d4bb56250bc15a [2021-08-29 16:14:56,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 16:14:56,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 16:14:56,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 16:14:56,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 16:14:56,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 16:14:56,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d49f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56, skipping insertion in model container [2021-08-29 16:14:56,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 16:14:56,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 16:14:56,435 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/product-lines/minepump_spec2_product41.cil.c[16717,16730] [2021-08-29 16:14:56,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:14:56,454 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 16:14:56,526 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/product-lines/minepump_spec2_product41.cil.c[16717,16730] [2021-08-29 16:14:56,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:14:56,543 INFO L208 MainTranslator]: Completed translation [2021-08-29 16:14:56,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56 WrapperNode [2021-08-29 16:14:56,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 16:14:56,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 16:14:56,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 16:14:56,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 16:14:56,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 16:14:56,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 16:14:56,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 16:14:56,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 16:14:56,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 16:14:56,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 16:14:56,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 16:14:56,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 16:14:56,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (1/1) ... [2021-08-29 16:14:56,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:14:56,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 16:14:56,620 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) [2021-08-29 16:14:56,634 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 [2021-08-29 16:14:56,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 16:14:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 16:14:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 16:14:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 16:14:57,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 16:14:57,032 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-08-29 16:14:57,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:14:57 BoogieIcfgContainer [2021-08-29 16:14:57,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 16:14:57,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 16:14:57,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 16:14:57,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 16:14:57,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:14:56" (1/3) ... [2021-08-29 16:14:57,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b2a20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:14:57, skipping insertion in model container [2021-08-29 16:14:57,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:14:56" (2/3) ... [2021-08-29 16:14:57,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b2a20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:14:57, skipping insertion in model container [2021-08-29 16:14:57,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:14:57" (3/3) ... [2021-08-29 16:14:57,039 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2021-08-29 16:14:57,042 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 16:14:57,042 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-29 16:14:57,070 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 16:14:57,074 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 [2021-08-29 16:14:57,075 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-29 16:14:57,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 87 states have (on average 1.5632183908045978) internal successors, (136), 90 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 16:14:57,087 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:57,088 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:14:57,088 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:57,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:57,091 INFO L82 PathProgramCache]: Analyzing trace with hash -466361678, now seen corresponding path program 1 times [2021-08-29 16:14:57,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:57,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835030981] [2021-08-29 16:14:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:57,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:57,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:57,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835030981] [2021-08-29 16:14:57,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835030981] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:57,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:57,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:14:57,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806249507] [2021-08-29 16:14:57,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 16:14:57,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:57,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 16:14:57,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:14:57,328 INFO L87 Difference]: Start difference. First operand has 91 states, 87 states have (on average 1.5632183908045978) internal successors, (136), 90 states have internal predecessors, (136), 0 states have call successors, (0), 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 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:14:57,528 INFO L93 Difference]: Finished difference Result 175 states and 264 transitions. [2021-08-29 16:14:57,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 16:14:57,531 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-08-29 16:14:57,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:14:57,539 INFO L225 Difference]: With dead ends: 175 [2021-08-29 16:14:57,539 INFO L226 Difference]: Without dead ends: 87 [2021-08-29 16:14:57,541 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:14:57,544 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163.88ms IncrementalHoareTripleChecker+Time [2021-08-29 16:14:57,545 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 129 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 163.88ms Time] [2021-08-29 16:14:57,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-08-29 16:14:57,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-08-29 16:14:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.4761904761904763) internal successors, (124), 86 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2021-08-29 16:14:57,582 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 18 [2021-08-29 16:14:57,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:14:57,583 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2021-08-29 16:14:57,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,583 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2021-08-29 16:14:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-29 16:14:57,584 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:57,584 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:14:57,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 16:14:57,584 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:57,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:57,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1078824867, now seen corresponding path program 1 times [2021-08-29 16:14:57,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:57,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001838211] [2021-08-29 16:14:57,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:57,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:57,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:57,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:57,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001838211] [2021-08-29 16:14:57,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001838211] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:57,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:57,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 16:14:57,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217587799] [2021-08-29 16:14:57,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:14:57,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:57,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:14:57,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:14:57,657 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:14:57,739 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2021-08-29 16:14:57,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:14:57,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-08-29 16:14:57,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:14:57,741 INFO L225 Difference]: With dead ends: 87 [2021-08-29 16:14:57,741 INFO L226 Difference]: Without dead ends: 39 [2021-08-29 16:14:57,741 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:14:57,742 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 47 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.04ms IncrementalHoareTripleChecker+Time [2021-08-29 16:14:57,743 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 0 Invalid, 61 Unknown, 0 Unchecked, 0.47ms Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 76.04ms Time] [2021-08-29 16:14:57,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-08-29 16:14:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-08-29 16:14:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 38 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2021-08-29 16:14:57,745 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 19 [2021-08-29 16:14:57,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:14:57,746 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2021-08-29 16:14:57,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2021-08-29 16:14:57,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 16:14:57,747 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:57,748 INFO L513 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] [2021-08-29 16:14:57,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 16:14:57,749 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:57,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:57,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1959799754, now seen corresponding path program 1 times [2021-08-29 16:14:57,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:57,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082302540] [2021-08-29 16:14:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:57,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:57,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:57,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082302540] [2021-08-29 16:14:57,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082302540] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:57,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:57,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:14:57,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075386339] [2021-08-29 16:14:57,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 16:14:57,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:57,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 16:14:57,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-29 16:14:57,827 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:14:57,947 INFO L93 Difference]: Finished difference Result 71 states and 103 transitions. [2021-08-29 16:14:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 16:14:57,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-08-29 16:14:57,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:14:57,952 INFO L225 Difference]: With dead ends: 71 [2021-08-29 16:14:57,953 INFO L226 Difference]: Without dead ends: 39 [2021-08-29 16:14:57,954 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.08ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:14:57,955 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 194 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.23ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.46ms IncrementalHoareTripleChecker+Time [2021-08-29 16:14:57,956 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 0 Invalid, 60 Unknown, 0 Unchecked, 1.23ms Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 101.46ms Time] [2021-08-29 16:14:57,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-08-29 16:14:57,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-08-29 16:14:57,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2021-08-29 16:14:57,961 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2021-08-29 16:14:57,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:14:57,961 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2021-08-29 16:14:57,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:57,962 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2021-08-29 16:14:57,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-29 16:14:57,962 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:57,962 INFO L513 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] [2021-08-29 16:14:57,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 16:14:57,963 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:57,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:57,963 INFO L82 PathProgramCache]: Analyzing trace with hash -2070782503, now seen corresponding path program 1 times [2021-08-29 16:14:57,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:57,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428803580] [2021-08-29 16:14:57,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:57,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:58,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:58,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428803580] [2021-08-29 16:14:58,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428803580] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:58,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:58,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:14:58,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331550483] [2021-08-29 16:14:58,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:14:58,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:58,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:14:58,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:14:58,017 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:58,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:14:58,118 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2021-08-29 16:14:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:14:58,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-08-29 16:14:58,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:14:58,119 INFO L225 Difference]: With dead ends: 93 [2021-08-29 16:14:58,119 INFO L226 Difference]: Without dead ends: 61 [2021-08-29 16:14:58,119 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:14:58,121 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 32 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.61ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.72ms IncrementalHoareTripleChecker+Time [2021-08-29 16:14:58,121 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 0 Invalid, 90 Unknown, 0 Unchecked, 0.61ms Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 90.72ms Time] [2021-08-29 16:14:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-08-29 16:14:58,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2021-08-29 16:14:58,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 58 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:58,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2021-08-29 16:14:58,126 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2021-08-29 16:14:58,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:14:58,126 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2021-08-29 16:14:58,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:58,127 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2021-08-29 16:14:58,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-29 16:14:58,127 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:58,127 INFO L513 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] [2021-08-29 16:14:58,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 16:14:58,128 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:58,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:58,128 INFO L82 PathProgramCache]: Analyzing trace with hash -576163675, now seen corresponding path program 1 times [2021-08-29 16:14:58,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:58,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846650512] [2021-08-29 16:14:58,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:58,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:58,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:58,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846650512] [2021-08-29 16:14:58,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846650512] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:58,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:58,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 16:14:58,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686222865] [2021-08-29 16:14:58,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:14:58,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:58,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:14:58,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:14:58,176 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:58,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:14:58,445 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2021-08-29 16:14:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-29 16:14:58,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-08-29 16:14:58,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:14:58,446 INFO L225 Difference]: With dead ends: 271 [2021-08-29 16:14:58,446 INFO L226 Difference]: Without dead ends: 219 [2021-08-29 16:14:58,447 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 21.24ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 16:14:58,447 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 157 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 177.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.78ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 236.46ms IncrementalHoareTripleChecker+Time [2021-08-29 16:14:58,448 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 0 Invalid, 355 Unknown, 0 Unchecked, 1.78ms Time], IncrementalHoareTripleChecker [8 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 236.46ms Time] [2021-08-29 16:14:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-08-29 16:14:58,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2021-08-29 16:14:58,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.411764705882353) internal successors, (144), 102 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:58,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2021-08-29 16:14:58,463 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2021-08-29 16:14:58,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:14:58,464 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2021-08-29 16:14:58,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:58,464 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2021-08-29 16:14:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-29 16:14:58,468 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:58,468 INFO L513 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] [2021-08-29 16:14:58,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 16:14:58,468 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:58,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:58,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1086399261, now seen corresponding path program 1 times [2021-08-29 16:14:58,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:58,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378932790] [2021-08-29 16:14:58,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:58,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:58,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:58,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378932790] [2021-08-29 16:14:58,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378932790] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:58,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:58,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 16:14:58,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815499694] [2021-08-29 16:14:58,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:14:58,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:58,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:14:58,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:14:58,536 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:58,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:14:58,801 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2021-08-29 16:14:58,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 16:14:58,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2021-08-29 16:14:58,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:14:58,803 INFO L225 Difference]: With dead ends: 376 [2021-08-29 16:14:58,803 INFO L226 Difference]: Without dead ends: 280 [2021-08-29 16:14:58,803 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 21.29ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 16:14:58,804 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 190 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 179.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.65ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.76ms IncrementalHoareTripleChecker+Time [2021-08-29 16:14:58,804 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 0 Invalid, 375 Unknown, 0 Unchecked, 1.65ms Time], IncrementalHoareTripleChecker [3 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 229.76ms Time] [2021-08-29 16:14:58,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-08-29 16:14:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2021-08-29 16:14:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.396039603960396) internal successors, (141), 101 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:58,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2021-08-29 16:14:58,814 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2021-08-29 16:14:58,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:14:58,814 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2021-08-29 16:14:58,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:58,814 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2021-08-29 16:14:58,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-08-29 16:14:58,815 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:58,815 INFO L513 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] [2021-08-29 16:14:58,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 16:14:58,815 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:58,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:58,816 INFO L82 PathProgramCache]: Analyzing trace with hash 477559900, now seen corresponding path program 1 times [2021-08-29 16:14:58,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:58,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812809610] [2021-08-29 16:14:58,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:58,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:58,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:58,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812809610] [2021-08-29 16:14:58,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812809610] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:58,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:58,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:14:58,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408545959] [2021-08-29 16:14:58,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:14:58,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:58,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:14:58,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:14:58,855 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:59,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:14:59,049 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2021-08-29 16:14:59,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 16:14:59,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-08-29 16:14:59,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:14:59,050 INFO L225 Difference]: With dead ends: 273 [2021-08-29 16:14:59,050 INFO L226 Difference]: Without dead ends: 178 [2021-08-29 16:14:59,050 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.59ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 16:14:59,051 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 104 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 169.48ms IncrementalHoareTripleChecker+Time [2021-08-29 16:14:59,051 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 0 Invalid, 274 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 169.48ms Time] [2021-08-29 16:14:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-08-29 16:14:59,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2021-08-29 16:14:59,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:59,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2021-08-29 16:14:59,067 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2021-08-29 16:14:59,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:14:59,067 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2021-08-29 16:14:59,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:59,067 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2021-08-29 16:14:59,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-08-29 16:14:59,068 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:59,068 INFO L513 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] [2021-08-29 16:14:59,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 16:14:59,068 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:59,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:59,068 INFO L82 PathProgramCache]: Analyzing trace with hash -533557350, now seen corresponding path program 1 times [2021-08-29 16:14:59,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:59,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852914281] [2021-08-29 16:14:59,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:59,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:59,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:59,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:59,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852914281] [2021-08-29 16:14:59,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852914281] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:59,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:59,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-29 16:14:59,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200482734] [2021-08-29 16:14:59,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 16:14:59,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:59,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 16:14:59,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-29 16:14:59,118 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:14:59,306 INFO L93 Difference]: Finished difference Result 291 states and 395 transitions. [2021-08-29 16:14:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 16:14:59,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-08-29 16:14:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:14:59,307 INFO L225 Difference]: With dead ends: 291 [2021-08-29 16:14:59,307 INFO L226 Difference]: Without dead ends: 190 [2021-08-29 16:14:59,308 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.59ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-29 16:14:59,308 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 232 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 154.57ms IncrementalHoareTripleChecker+Time [2021-08-29 16:14:59,308 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 0 Invalid, 205 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 154.57ms Time] [2021-08-29 16:14:59,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-08-29 16:14:59,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 112. [2021-08-29 16:14:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 111 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2021-08-29 16:14:59,324 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2021-08-29 16:14:59,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:14:59,325 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2021-08-29 16:14:59,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:59,325 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2021-08-29 16:14:59,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-08-29 16:14:59,325 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:59,326 INFO L513 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] [2021-08-29 16:14:59,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 16:14:59,326 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:59,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:59,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1554625704, now seen corresponding path program 1 times [2021-08-29 16:14:59,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:59,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903015996] [2021-08-29 16:14:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:59,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:59,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:59,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:59,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903015996] [2021-08-29 16:14:59,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903015996] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:59,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:59,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:14:59,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009405477] [2021-08-29 16:14:59,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:14:59,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:59,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:14:59,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:14:59,358 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:59,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:14:59,437 INFO L93 Difference]: Finished difference Result 265 states and 357 transitions. [2021-08-29 16:14:59,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:14:59,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-08-29 16:14:59,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:14:59,438 INFO L225 Difference]: With dead ends: 265 [2021-08-29 16:14:59,438 INFO L226 Difference]: Without dead ends: 160 [2021-08-29 16:14:59,439 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:14:59,439 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.24ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.97ms IncrementalHoareTripleChecker+Time [2021-08-29 16:14:59,440 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 102 Unknown, 0 Unchecked, 0.24ms Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 67.97ms Time] [2021-08-29 16:14:59,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-08-29 16:14:59,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-08-29 16:14:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.3144654088050314) internal successors, (209), 159 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:59,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2021-08-29 16:14:59,449 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 35 [2021-08-29 16:14:59,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:14:59,449 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2021-08-29 16:14:59,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:14:59,449 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2021-08-29 16:14:59,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-29 16:14:59,450 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:14:59,450 INFO L513 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] [2021-08-29 16:14:59,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 16:14:59,451 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:14:59,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:14:59,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1879284200, now seen corresponding path program 1 times [2021-08-29 16:14:59,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:14:59,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66996379] [2021-08-29 16:14:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:14:59,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:14:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:14:59,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:14:59,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:14:59,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66996379] [2021-08-29 16:14:59,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66996379] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:14:59,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:14:59,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-29 16:14:59,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258077872] [2021-08-29 16:14:59,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 16:14:59,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:14:59,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 16:14:59,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:14:59,507 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:00,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:00,059 INFO L93 Difference]: Finished difference Result 579 states and 757 transitions. [2021-08-29 16:15:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-29 16:15:00,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-08-29 16:15:00,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:00,061 INFO L225 Difference]: With dead ends: 579 [2021-08-29 16:15:00,061 INFO L226 Difference]: Without dead ends: 426 [2021-08-29 16:15:00,061 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 115.83ms TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2021-08-29 16:15:00,062 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 311 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 327.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.78ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 408.06ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:00,062 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 0 Invalid, 788 Unknown, 0 Unchecked, 2.78ms Time], IncrementalHoareTripleChecker [10 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 408.06ms Time] [2021-08-29 16:15:00,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-08-29 16:15:00,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 160. [2021-08-29 16:15:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.2893081761006289) internal successors, (205), 159 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) [2021-08-29 16:15:00,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 205 transitions. [2021-08-29 16:15:00,075 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 205 transitions. Word has length 36 [2021-08-29 16:15:00,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:00,075 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 205 transitions. [2021-08-29 16:15:00,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:00,076 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 205 transitions. [2021-08-29 16:15:00,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-29 16:15:00,076 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:00,077 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-08-29 16:15:00,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 16:15:00,077 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:15:00,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:00,077 INFO L82 PathProgramCache]: Analyzing trace with hash 749013372, now seen corresponding path program 1 times [2021-08-29 16:15:00,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:00,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128959433] [2021-08-29 16:15:00,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:00,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:00,133 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:15:00,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:00,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128959433] [2021-08-29 16:15:00,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128959433] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:00,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:00,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 16:15:00,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924992697] [2021-08-29 16:15:00,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:15:00,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:00,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:15:00,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:00,134 INFO L87 Difference]: Start difference. First operand 160 states and 205 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:00,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:00,234 INFO L93 Difference]: Finished difference Result 233 states and 301 transitions. [2021-08-29 16:15:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:15:00,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-08-29 16:15:00,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:00,236 INFO L225 Difference]: With dead ends: 233 [2021-08-29 16:15:00,236 INFO L226 Difference]: Without dead ends: 231 [2021-08-29 16:15:00,236 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:00,236 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.32ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.56ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:00,237 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 102 Unknown, 0 Unchecked, 0.32ms Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 85.56ms Time] [2021-08-29 16:15:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-08-29 16:15:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 180. [2021-08-29 16:15:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.312849162011173) internal successors, (235), 179 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:00,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 235 transitions. [2021-08-29 16:15:00,248 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 235 transitions. Word has length 51 [2021-08-29 16:15:00,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:00,248 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 235 transitions. [2021-08-29 16:15:00,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:00,248 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 235 transitions. [2021-08-29 16:15:00,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-08-29 16:15:00,249 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:00,249 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:15:00,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 16:15:00,249 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:15:00,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:00,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1849817445, now seen corresponding path program 1 times [2021-08-29 16:15:00,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:00,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780401886] [2021-08-29 16:15:00,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:00,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 16:15:00,285 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 16:15:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 16:15:00,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 16:15:00,348 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 16:15:00,348 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-08-29 16:15:00,350 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-08-29 16:15:00,350 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-08-29 16:15:00,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 16:15:00,355 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 16:15:00,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:15:00 BoogieIcfgContainer [2021-08-29 16:15:00,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 16:15:00,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 16:15:00,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 16:15:00,454 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 16:15:00,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:14:57" (3/4) ... [2021-08-29 16:15:00,456 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 16:15:00,546 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 16:15:00,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 16:15:00,546 INFO L158 Benchmark]: Toolchain (without parser) took 4296.91ms. Allocated memory was 60.8MB in the beginning and 102.8MB in the end (delta: 41.9MB). Free memory was 40.0MB in the beginning and 33.0MB in the end (delta: 7.0MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2021-08-29 16:15:00,547 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 42.5MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 16:15:00,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.00ms. Allocated memory is still 60.8MB. Free memory was 39.9MB in the beginning and 38.9MB in the end (delta: 1.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-08-29 16:15:00,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.32ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 35.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 16:15:00,547 INFO L158 Benchmark]: Boogie Preprocessor took 21.36ms. Allocated memory is still 60.8MB. Free memory was 35.5MB in the beginning and 33.2MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 16:15:00,547 INFO L158 Benchmark]: RCFGBuilder took 433.14ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 33.2MB in the beginning and 46.1MB in the end (delta: -12.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2021-08-29 16:15:00,547 INFO L158 Benchmark]: TraceAbstraction took 3418.85ms. Allocated memory was 73.4MB in the beginning and 102.8MB in the end (delta: 29.4MB). Free memory was 45.4MB in the beginning and 60.4MB in the end (delta: -15.0MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2021-08-29 16:15:00,548 INFO L158 Benchmark]: Witness Printer took 91.93ms. Allocated memory is still 102.8MB. Free memory was 60.4MB in the beginning and 33.0MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-08-29 16:15:00,549 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 42.5MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.00ms. Allocated memory is still 60.8MB. Free memory was 39.9MB in the beginning and 38.9MB in the end (delta: 1.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.32ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 35.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.36ms. Allocated memory is still 60.8MB. Free memory was 35.5MB in the beginning and 33.2MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 433.14ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 33.2MB in the beginning and 46.1MB in the end (delta: -12.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3418.85ms. Allocated memory was 73.4MB in the beginning and 102.8MB in the end (delta: 29.4MB). Free memory was 45.4MB in the beginning and 60.4MB in the end (delta: -15.0MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. * Witness Printer took 91.93ms. Allocated memory is still 102.8MB. Free memory was 60.4MB in the beginning and 33.0MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 832]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L45] int methAndRunningLastTime ; [L253] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L457] int pumpRunning = 0; [L458] int systemActive = 1; [L630] int waterLevel = 1; [L631] int methaneLevelCritical = 0; [L837] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L911] int retValue_acc ; [L912] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] int retValue_acc ; [L822] retValue_acc = 1 [L823] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L918] tmp = valid_product() [L920] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L50] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L735] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L737] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L743] tmp = __VERIFIER_nondet_int() [L745] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L648] COND TRUE waterLevel < 2 [L649] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L464] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L471] COND TRUE \read(systemActive) [L493] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND TRUE ! pumpRunning [L608] int retValue_acc ; [L609] int tmp ; [L610] int tmp___0 ; [L710] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L713] COND FALSE !(waterLevel < 2) [L717] retValue_acc = 0 [L718] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] tmp = isHighWaterSensorDry() [L616] COND FALSE !(\read(tmp)) [L619] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] retValue_acc = tmp___0 [L622] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] tmp = isHighWaterLevel() [L500] COND TRUE \read(tmp) [L527] int tmp ; [L552] int retValue_acc ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] retValue_acc = isMethaneLevelCritical() [L558] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] tmp = isMethaneAlarm() [L533] COND FALSE !(\read(tmp)) [L521] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L735] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L737] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L660] COND FALSE !(\read(methaneLevelCritical)) [L663] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L464] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L636] COND TRUE waterLevel > 0 [L637] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] COND TRUE \read(systemActive) [L493] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L60] tmp = isMethaneLevelCritical() [L62] COND TRUE \read(tmp) [L563] int retValue_acc ; [L566] retValue_acc = pumpRunning [L567] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L64] tmp___0 = isPumpRunning() [L66] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND FALSE !(\read(methAndRunningLastTime)) [L72] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L735] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L737] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L636] COND TRUE waterLevel > 0 [L637] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] COND TRUE \read(systemActive) [L493] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L496] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L60] tmp = isMethaneLevelCritical() [L62] COND TRUE \read(tmp) [L563] int retValue_acc ; [L566] retValue_acc = pumpRunning [L567] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L64] tmp___0 = isPumpRunning() [L66] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L67] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L832] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - UnprovableResult [Line: 832]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3284.49ms, OverallIterations: 12, TraceHistogramMax: 3, EmptinessCheckTime: 16.27ms, AutomataDifference: 2244.64ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 6.57ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1314 SdHoareTripleChecker+Valid, 1783.97ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1314 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1372.77ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1444 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2509 IncrementalHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 0 mSDtfsCounter, 2509 mSolverCounterSat, 12.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 225.14ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=11, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 120.48ms AutomataMinimizationTime, 11 MinimizatonAttempts, 761 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.62ms SsaConstructionTime, 207.94ms SatisfiabilityAnalysisTime, 445.39ms InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 14/14 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 RESULT: Ultimate proved your program to be incorrect! [2021-08-29 16:15:00,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...