./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product44.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_spec3_product44.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 e60ff67dae14f5ff0ee1027845136e2245e7a1f5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:15:45,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 16:15:45,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 16:15:45,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 16:15:45,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 16:15:45,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 16:15:45,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 16:15:45,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 16:15:45,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 16:15:45,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 16:15:45,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 16:15:45,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 16:15:45,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 16:15:45,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 16:15:45,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 16:15:45,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 16:15:45,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 16:15:45,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 16:15:45,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 16:15:45,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 16:15:45,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 16:15:45,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 16:15:45,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 16:15:45,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 16:15:45,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 16:15:45,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 16:15:45,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 16:15:45,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 16:15:45,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 16:15:45,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 16:15:45,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 16:15:45,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 16:15:45,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 16:15:45,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 16:15:45,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 16:15:45,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 16:15:45,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 16:15:45,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 16:15:45,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 16:15:45,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 16:15:45,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 16:15:45,423 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 16:15:45,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 16:15:45,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 16:15:45,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 16:15:45,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 16:15:45,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 16:15:45,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 16:15:45,449 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 16:15:45,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 16:15:45,449 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 16:15:45,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 16:15:45,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 16:15:45,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 16:15:45,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 16:15:45,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 16:15:45,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 16:15:45,450 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 16:15:45,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 16:15:45,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 16:15:45,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 16:15:45,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 16:15:45,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 16:15:45,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 16:15:45,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:15:45,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 16:15:45,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 16:15:45,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 16:15:45,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 16:15:45,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 16:15:45,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 16:15:45,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 16:15:45,452 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e60ff67dae14f5ff0ee1027845136e2245e7a1f5 [2021-08-29 16:15:45,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 16:15:45,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 16:15:45,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 16:15:45,740 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 16:15:45,741 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 16:15:45,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2021-08-29 16:15:45,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7c6e756d/d95bc14673194fc484a83702f0a5a564/FLAG959e0aa99 [2021-08-29 16:15:46,159 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 16:15:46,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2021-08-29 16:15:46,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7c6e756d/d95bc14673194fc484a83702f0a5a564/FLAG959e0aa99 [2021-08-29 16:15:46,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7c6e756d/d95bc14673194fc484a83702f0a5a564 [2021-08-29 16:15:46,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 16:15:46,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 16:15:46,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 16:15:46,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 16:15:46,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 16:15:46,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:46,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49edb36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46, skipping insertion in model container [2021-08-29 16:15:46,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:46,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 16:15:46,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 16:15:46,702 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_spec3_product44.cil.c[4955,4968] [2021-08-29 16:15:46,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:15:46,820 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 16:15:46,853 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_spec3_product44.cil.c[4955,4968] [2021-08-29 16:15:46,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:15:46,908 INFO L208 MainTranslator]: Completed translation [2021-08-29 16:15:46,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46 WrapperNode [2021-08-29 16:15:46,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 16:15:46,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 16:15:46,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 16:15:46,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 16:15:46,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:46,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:46,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 16:15:46,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 16:15:46,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 16:15:46,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 16:15:46,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:46,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:46,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:46,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:47,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:47,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:47,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:47,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 16:15:47,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 16:15:47,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 16:15:47,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 16:15:47,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (1/1) ... [2021-08-29 16:15:47,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:15:47,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 16:15:47,110 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 16:15:47,197 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 16:15:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 16:15:47,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 16:15:47,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 16:15:47,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 16:15:47,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 16:15:47,593 INFO L299 CfgBuilder]: Removed 126 assume(true) statements. [2021-08-29 16:15:47,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:15:47 BoogieIcfgContainer [2021-08-29 16:15:47,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 16:15:47,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 16:15:47,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 16:15:47,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 16:15:47,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:15:46" (1/3) ... [2021-08-29 16:15:47,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e29ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:15:47, skipping insertion in model container [2021-08-29 16:15:47,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:15:46" (2/3) ... [2021-08-29 16:15:47,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e29ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:15:47, skipping insertion in model container [2021-08-29 16:15:47,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:15:47" (3/3) ... [2021-08-29 16:15:47,606 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2021-08-29 16:15:47,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 16:15:47,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-29 16:15:47,654 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 16:15:47,660 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 16:15:47,660 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-29 16:15:47,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 94 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 16:15:47,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 16:15:47,684 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:47,684 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 16:15:47,685 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 16:15:47,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:47,689 INFO L82 PathProgramCache]: Analyzing trace with hash -415609573, now seen corresponding path program 1 times [2021-08-29 16:15:47,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:47,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536442852] [2021-08-29 16:15:47,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:47,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:47,945 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 16:15:47,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:47,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536442852] [2021-08-29 16:15:47,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536442852] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:47,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:47,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:15:47,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96610018] [2021-08-29 16:15:47,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 16:15:47,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:47,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 16:15:47,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:15:47,970 INFO L87 Difference]: Start difference. First operand has 95 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 94 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) 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 16:15:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:48,153 INFO L93 Difference]: Finished difference Result 184 states and 275 transitions. [2021-08-29 16:15:48,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 16:15:48,158 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 16:15:48,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:48,167 INFO L225 Difference]: With dead ends: 184 [2021-08-29 16:15:48,168 INFO L226 Difference]: Without dead ends: 91 [2021-08-29 16:15:48,172 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 16:15:48,175 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 126.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 158.26ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:48,177 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 134 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 158.26ms Time] [2021-08-29 16:15:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-08-29 16:15:48,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-08-29 16:15:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 90 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 16:15:48,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2021-08-29 16:15:48,217 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2021-08-29 16:15:48,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:48,217 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2021-08-29 16:15:48,218 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 16:15:48,218 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2021-08-29 16:15:48,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-29 16:15:48,219 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:48,219 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 16:15:48,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 16:15:48,220 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 16:15:48,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:48,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1326640326, now seen corresponding path program 1 times [2021-08-29 16:15:48,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:48,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849589222] [2021-08-29 16:15:48,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:48,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:48,270 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 16:15:48,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:48,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849589222] [2021-08-29 16:15:48,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849589222] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:48,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:48,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 16:15:48,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858430377] [2021-08-29 16:15:48,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:15:48,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:48,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:15:48,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:48,274 INFO L87 Difference]: Start difference. First operand 91 states and 129 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 16:15:48,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:48,353 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2021-08-29 16:15:48,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:15:48,354 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 16:15:48,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:48,354 INFO L225 Difference]: With dead ends: 91 [2021-08-29 16:15:48,354 INFO L226 Difference]: Without dead ends: 41 [2021-08-29 16:15:48,355 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:48,356 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.66ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:48,356 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 0 Invalid, 63 Unknown, 0 Unchecked, 0.52ms Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 71.66ms Time] [2021-08-29 16:15:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-08-29 16:15:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-08-29 16:15:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.45) internal successors, (58), 40 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 16:15:48,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2021-08-29 16:15:48,360 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2021-08-29 16:15:48,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:48,360 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2021-08-29 16:15:48,360 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 16:15:48,360 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2021-08-29 16:15:48,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 16:15:48,361 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:48,361 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 16:15:48,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 16:15:48,362 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 16:15:48,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:48,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1440289089, now seen corresponding path program 1 times [2021-08-29 16:15:48,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:48,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604865990] [2021-08-29 16:15:48,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:48,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:48,416 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 16:15:48,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:48,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604865990] [2021-08-29 16:15:48,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604865990] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:48,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:48,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:15:48,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825085530] [2021-08-29 16:15:48,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:15:48,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:48,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:15:48,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:15:48,419 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 5 states, 5 states have (on average 4.8) 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 16:15:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:48,610 INFO L93 Difference]: Finished difference Result 101 states and 147 transitions. [2021-08-29 16:15:48,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 16:15:48,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) 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 16:15:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:48,612 INFO L225 Difference]: With dead ends: 101 [2021-08-29 16:15:48,613 INFO L226 Difference]: Without dead ends: 66 [2021-08-29 16:15:48,613 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.26ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:15:48,615 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 234 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.90ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 152.41ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:48,617 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 0 Invalid, 100 Unknown, 0 Unchecked, 2.90ms Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 152.41ms Time] [2021-08-29 16:15:48,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-08-29 16:15:48,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2021-08-29 16:15:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 61 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 16:15:48,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2021-08-29 16:15:48,637 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 24 [2021-08-29 16:15:48,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:48,638 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2021-08-29 16:15:48,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) 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 16:15:48,638 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2021-08-29 16:15:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-29 16:15:48,640 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:48,640 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 16:15:48,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 16:15:48,641 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 16:15:48,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:48,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1072133948, now seen corresponding path program 1 times [2021-08-29 16:15:48,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:48,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522297736] [2021-08-29 16:15:48,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:48,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:48,734 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 16:15:48,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:48,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522297736] [2021-08-29 16:15:48,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522297736] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:48,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:48,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:15:48,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904670455] [2021-08-29 16:15:48,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:15:48,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:48,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:15:48,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:48,736 INFO L87 Difference]: Start difference. First operand 62 states and 90 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 16:15:48,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:48,858 INFO L93 Difference]: Finished difference Result 141 states and 207 transitions. [2021-08-29 16:15:48,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:15:48,858 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 16:15:48,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:48,859 INFO L225 Difference]: With dead ends: 141 [2021-08-29 16:15:48,859 INFO L226 Difference]: Without dead ends: 85 [2021-08-29 16:15:48,859 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:15:48,860 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.42ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.55ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:48,860 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 98 Unknown, 0 Unchecked, 0.42ms Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 113.55ms Time] [2021-08-29 16:15:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-08-29 16:15:48,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2021-08-29 16:15:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.4390243902439024) internal successors, (118), 82 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 16:15:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2021-08-29 16:15:48,867 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 25 [2021-08-29 16:15:48,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:48,867 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2021-08-29 16:15:48,867 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 16:15:48,867 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2021-08-29 16:15:48,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-29 16:15:48,868 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:48,868 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] [2021-08-29 16:15:48,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 16:15:48,868 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 16:15:48,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:48,869 INFO L82 PathProgramCache]: Analyzing trace with hash -2003629676, now seen corresponding path program 1 times [2021-08-29 16:15:48,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:48,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724935705] [2021-08-29 16:15:48,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:48,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:15:48,954 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 16:15:48,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:15:48,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724935705] [2021-08-29 16:15:48,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724935705] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:15:48,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:15:48,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 16:15:48,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204983577] [2021-08-29 16:15:48,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:15:48,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:15:48,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:15:48,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:15:48,957 INFO L87 Difference]: Start difference. First operand 83 states and 118 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 16:15:49,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:15:49,346 INFO L93 Difference]: Finished difference Result 524 states and 767 transitions. [2021-08-29 16:15:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 16:15:49,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2021-08-29 16:15:49,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:15:49,349 INFO L225 Difference]: With dead ends: 524 [2021-08-29 16:15:49,349 INFO L226 Difference]: Without dead ends: 447 [2021-08-29 16:15:49,349 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 24.45ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 16:15:49,350 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 277 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 252.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.49ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 329.95ms IncrementalHoareTripleChecker+Time [2021-08-29 16:15:49,350 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 0 Invalid, 457 Unknown, 0 Unchecked, 3.49ms Time], IncrementalHoareTripleChecker [12 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 329.95ms Time] [2021-08-29 16:15:49,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-08-29 16:15:49,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 152. [2021-08-29 16:15:49,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4105960264900663) internal successors, (213), 151 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 16:15:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 213 transitions. [2021-08-29 16:15:49,365 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 213 transitions. Word has length 27 [2021-08-29 16:15:49,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:15:49,366 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 213 transitions. [2021-08-29 16:15:49,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 16:15:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 213 transitions. [2021-08-29 16:15:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-29 16:15:49,367 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:15:49,367 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] [2021-08-29 16:15:49,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 16:15:49,367 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 16:15:49,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:15:49,367 INFO L82 PathProgramCache]: Analyzing trace with hash 591073878, now seen corresponding path program 1 times [2021-08-29 16:15:49,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:15:49,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857512508] [2021-08-29 16:15:49,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:15:49,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:15:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 16:15:49,409 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 16:15:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 16:15:49,462 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 16:15:49,462 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 16:15:49,463 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-08-29 16:15:49,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-08-29 16:15:49,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-08-29 16:15:49,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 16:15:49,470 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 16:15:49,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:15:49 BoogieIcfgContainer [2021-08-29 16:15:49,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 16:15:49,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 16:15:49,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 16:15:49,549 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 16:15:49,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:15:47" (3/4) ... [2021-08-29 16:15:49,551 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 16:15:49,622 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 16:15:49,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 16:15:49,623 INFO L158 Benchmark]: Toolchain (without parser) took 3098.90ms. Allocated memory was 48.2MB in the beginning and 107.0MB in the end (delta: 58.7MB). Free memory was 23.6MB in the beginning and 68.0MB in the end (delta: -44.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-08-29 16:15:49,623 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 30.7MB in the beginning and 30.7MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 16:15:49,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.77ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 23.4MB in the beginning and 41.7MB in the end (delta: -18.3MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-08-29 16:15:49,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.86ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 38.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 16:15:49,628 INFO L158 Benchmark]: Boogie Preprocessor took 50.76ms. Allocated memory is still 65.0MB. Free memory was 38.2MB in the beginning and 35.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 16:15:49,628 INFO L158 Benchmark]: RCFGBuilder took 560.51ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 35.9MB in the beginning and 65.1MB in the end (delta: -29.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-08-29 16:15:49,629 INFO L158 Benchmark]: TraceAbstraction took 1952.84ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 64.7MB in the beginning and 79.5MB in the end (delta: -14.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2021-08-29 16:15:49,629 INFO L158 Benchmark]: Witness Printer took 73.39ms. Allocated memory is still 107.0MB. Free memory was 79.5MB in the beginning and 68.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 16:15:49,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 30.7MB in the beginning and 30.7MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.77ms. Allocated memory was 48.2MB in the beginning and 65.0MB in the end (delta: 16.8MB). Free memory was 23.4MB in the beginning and 41.7MB in the end (delta: -18.3MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.86ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 38.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.76ms. Allocated memory is still 65.0MB. Free memory was 38.2MB in the beginning and 35.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 560.51ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 35.9MB in the beginning and 65.1MB in the end (delta: -29.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1952.84ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 64.7MB in the beginning and 79.5MB in the end (delta: -14.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 73.39ms. Allocated memory is still 107.0MB. Free memory was 79.5MB in the beginning and 68.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. 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: 320]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L187] int waterLevel = 1; [L188] int methaneLevelCritical = 0; [L494] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L695] int pumpRunning = 0; [L696] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L889] int splverifierCounter ; [L890] int tmp ; [L891] int tmp___0 ; [L892] int tmp___1 ; [L893] int tmp___2 ; [L896] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L900] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] tmp = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L205] COND TRUE waterLevel < 2 [L206] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L916] tmp___0 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L926] tmp___2 = __VERIFIER_nondet_int() [L928] COND FALSE !(\read(tmp___2)) [L934] tmp___1 = __VERIFIER_nondet_int() [L936] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L868] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L702] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L709] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L151] int tmp ; [L152] int tmp___0 ; [L153] int tmp___1 ; [L226] int retValue_acc ; [L229] retValue_acc = methaneLevelCritical [L230] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] tmp = isMethaneLevelCritical() [L159] COND FALSE !(\read(tmp)) [L258] int retValue_acc ; [L261] retValue_acc = waterLevel [L262] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L163] tmp___0 = getWaterLevel() [L165] COND TRUE tmp___0 == 2 [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L167] tmp___1 = isPumpRunning() [L169] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L320] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 320]: 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: 320]: 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, 95 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1816.59ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 17.00ms, AutomataDifference: 1032.54ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 11.05ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 598 SdHoareTripleChecker+Valid, 825.83ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 598 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 617.39ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 377 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 832 IncrementalHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 0 mSDtfsCounter, 832 mSolverCounterSat, 8.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 49.83ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 69.19ms AutomataMinimizationTime, 5 MinimizatonAttempts, 301 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 46.16ms SsaConstructionTime, 196.37ms SatisfiabilityAnalysisTime, 267.64ms InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 16:15:49,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...