./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3ef47dc64404f2fae365adb4fa9379fd10f9c50 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-07 10:07:44,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:07:44,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:07:44,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:07:44,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:07:44,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:07:44,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:07:44,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:07:44,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:07:44,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:07:44,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:07:44,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:07:44,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:07:44,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:07:44,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:07:44,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:07:44,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:07:44,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:07:44,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:07:44,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:07:44,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:07:44,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:07:44,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:07:44,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:07:44,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:07:44,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:07:44,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:07:44,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:07:44,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:07:44,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:07:44,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:07:44,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:07:44,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:07:44,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:07:44,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:07:44,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:07:44,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:07:44,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:07:44,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:07:44,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:07:44,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:07:44,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 10:07:44,291 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:07:44,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:07:44,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:07:44,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:07:44,292 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:07:44,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:07:44,292 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:07:44,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:07:44,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:07:44,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:07:44,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:07:44,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:07:44,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:07:44,293 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:07:44,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:07:44,293 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:07:44,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:07:44,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:07:44,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:07:44,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:07:44,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:07:44,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:44,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:07:44,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:07:44,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:07:44,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:07:44,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:07:44,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:07:44,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:07:44,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer 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(__VERIFIER_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 -> d3ef47dc64404f2fae365adb4fa9379fd10f9c50 [2019-12-07 10:07:44,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:07:44,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:07:44,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:07:44,413 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:07:44,414 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:07:44,414 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-12-07 10:07:44,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/data/b19a0f6fb/9e576d7edb164bc1b5bbc31f57b994c4/FLAG65efc3916 [2019-12-07 10:07:44,983 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:07:44,984 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-12-07 10:07:44,993 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/data/b19a0f6fb/9e576d7edb164bc1b5bbc31f57b994c4/FLAG65efc3916 [2019-12-07 10:07:45,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/data/b19a0f6fb/9e576d7edb164bc1b5bbc31f57b994c4 [2019-12-07 10:07:45,457 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:07:45,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:07:45,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:45,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:07:45,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:07:45,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa88b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45, skipping insertion in model container [2019-12-07 10:07:45,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:07:45,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:07:45,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:45,732 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:07:45,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:45,809 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:07:45,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45 WrapperNode [2019-12-07 10:07:45,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:45,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:45,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:07:45,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:07:45,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:45,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:07:45,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:07:45,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:07:45,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... [2019-12-07 10:07:45,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:07:45,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:07:45,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:07:45,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:07:45,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:07:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 10:07:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:07:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:07:46,332 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:07:46,333 INFO L287 CfgBuilder]: Removed 120 assume(true) statements. [2019-12-07 10:07:46,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:46 BoogieIcfgContainer [2019-12-07 10:07:46,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:07:46,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:07:46,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:07:46,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:07:46,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:45" (1/3) ... [2019-12-07 10:07:46,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ad1ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:46, skipping insertion in model container [2019-12-07 10:07:46,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:45" (2/3) ... [2019-12-07 10:07:46,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ad1ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:46, skipping insertion in model container [2019-12-07 10:07:46,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:46" (3/3) ... [2019-12-07 10:07:46,338 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2019-12-07 10:07:46,345 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:07:46,350 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 10:07:46,357 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 10:07:46,373 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:07:46,373 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:07:46,373 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:07:46,373 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:07:46,373 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:07:46,373 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:07:46,373 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:07:46,374 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:07:46,385 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2019-12-07 10:07:46,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 10:07:46,389 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:46,390 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:46,390 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:46,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1388908220, now seen corresponding path program 1 times [2019-12-07 10:07:46,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:46,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131272093] [2019-12-07 10:07:46,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:46,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:46,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131272093] [2019-12-07 10:07:46,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:46,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:07:46,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901046898] [2019-12-07 10:07:46,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 10:07:46,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:46,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 10:07:46,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:07:46,562 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 2 states. [2019-12-07 10:07:46,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:46,580 INFO L93 Difference]: Finished difference Result 179 states and 270 transitions. [2019-12-07 10:07:46,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 10:07:46,581 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 10:07:46,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:46,589 INFO L225 Difference]: With dead ends: 179 [2019-12-07 10:07:46,589 INFO L226 Difference]: Without dead ends: 89 [2019-12-07 10:07:46,591 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:07:46,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-12-07 10:07:46,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2019-12-07 10:07:46,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-12-07 10:07:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2019-12-07 10:07:46,620 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2019-12-07 10:07:46,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:46,620 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2019-12-07 10:07:46,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 10:07:46,620 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2019-12-07 10:07:46,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 10:07:46,621 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:46,621 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:46,621 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:46,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:46,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1607744189, now seen corresponding path program 1 times [2019-12-07 10:07:46,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:46,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774265884] [2019-12-07 10:07:46,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:46,678 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774265884] [2019-12-07 10:07:46,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:46,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:07:46,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862917340] [2019-12-07 10:07:46,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:46,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:46,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:46,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:46,680 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 3 states. [2019-12-07 10:07:46,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:46,688 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2019-12-07 10:07:46,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:46,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 10:07:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:46,689 INFO L225 Difference]: With dead ends: 89 [2019-12-07 10:07:46,690 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 10:07:46,691 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:46,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 10:07:46,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 10:07:46,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 10:07:46,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2019-12-07 10:07:46,696 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2019-12-07 10:07:46,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:46,696 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2019-12-07 10:07:46,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2019-12-07 10:07:46,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 10:07:46,697 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:46,697 INFO L410 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] [2019-12-07 10:07:46,697 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:46,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:46,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1417220031, now seen corresponding path program 1 times [2019-12-07 10:07:46,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:46,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477815556] [2019-12-07 10:07:46,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:46,772 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477815556] [2019-12-07 10:07:46,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:46,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 10:07:46,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153275390] [2019-12-07 10:07:46,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:07:46,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:46,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:07:46,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:46,774 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 6 states. [2019-12-07 10:07:46,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:46,870 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2019-12-07 10:07:46,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:07:46,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-12-07 10:07:46,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:46,872 INFO L225 Difference]: With dead ends: 133 [2019-12-07 10:07:46,872 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 10:07:46,872 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:07:46,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 10:07:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 61. [2019-12-07 10:07:46,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 10:07:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2019-12-07 10:07:46,883 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 24 [2019-12-07 10:07:46,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:46,883 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2019-12-07 10:07:46,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 10:07:46,883 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2019-12-07 10:07:46,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 10:07:46,884 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:46,884 INFO L410 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] [2019-12-07 10:07:46,885 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:46,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:46,885 INFO L82 PathProgramCache]: Analyzing trace with hash -462384263, now seen corresponding path program 1 times [2019-12-07 10:07:46,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:46,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638059035] [2019-12-07 10:07:46,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:46,928 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638059035] [2019-12-07 10:07:46,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:46,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:07:46,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244996282] [2019-12-07 10:07:46,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:46,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:46,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:46,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:46,929 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand 3 states. [2019-12-07 10:07:46,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:46,949 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2019-12-07 10:07:46,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:46,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 10:07:46,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:46,951 INFO L225 Difference]: With dead ends: 137 [2019-12-07 10:07:46,951 INFO L226 Difference]: Without dead ends: 83 [2019-12-07 10:07:46,952 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-12-07 10:07:46,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2019-12-07 10:07:46,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-12-07 10:07:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2019-12-07 10:07:46,961 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 25 [2019-12-07 10:07:46,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:46,961 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2019-12-07 10:07:46,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2019-12-07 10:07:46,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 10:07:46,962 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:46,963 INFO L410 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] [2019-12-07 10:07:46,963 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:46,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:46,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1738728008, now seen corresponding path program 1 times [2019-12-07 10:07:46,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:46,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108235652] [2019-12-07 10:07:46,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:47,013 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108235652] [2019-12-07 10:07:47,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:47,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:07:47,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200196950] [2019-12-07 10:07:47,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:07:47,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:47,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:07:47,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:07:47,014 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 5 states. [2019-12-07 10:07:47,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:47,097 INFO L93 Difference]: Finished difference Result 378 states and 552 transitions. [2019-12-07 10:07:47,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 10:07:47,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 10:07:47,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:47,100 INFO L225 Difference]: With dead ends: 378 [2019-12-07 10:07:47,100 INFO L226 Difference]: Without dead ends: 304 [2019-12-07 10:07:47,101 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 10:07:47,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-12-07 10:07:47,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 144. [2019-12-07 10:07:47,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-12-07 10:07:47,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2019-12-07 10:07:47,120 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 27 [2019-12-07 10:07:47,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:47,121 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2019-12-07 10:07:47,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:07:47,121 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2019-12-07 10:07:47,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 10:07:47,122 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:47,122 INFO L410 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] [2019-12-07 10:07:47,123 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:47,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:47,123 INFO L82 PathProgramCache]: Analyzing trace with hash 304582848, now seen corresponding path program 1 times [2019-12-07 10:07:47,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:47,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977405578] [2019-12-07 10:07:47,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:47,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977405578] [2019-12-07 10:07:47,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:47,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:07:47,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060920970] [2019-12-07 10:07:47,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:07:47,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:47,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:07:47,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:07:47,166 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand 5 states. [2019-12-07 10:07:47,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:47,251 INFO L93 Difference]: Finished difference Result 529 states and 751 transitions. [2019-12-07 10:07:47,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 10:07:47,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-12-07 10:07:47,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:47,254 INFO L225 Difference]: With dead ends: 529 [2019-12-07 10:07:47,254 INFO L226 Difference]: Without dead ends: 392 [2019-12-07 10:07:47,255 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 10:07:47,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-12-07 10:07:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 142. [2019-12-07 10:07:47,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-07 10:07:47,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 197 transitions. [2019-12-07 10:07:47,269 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 197 transitions. Word has length 28 [2019-12-07 10:07:47,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:47,270 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 197 transitions. [2019-12-07 10:07:47,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:07:47,270 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 197 transitions. [2019-12-07 10:07:47,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 10:07:47,271 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:47,272 INFO L410 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] [2019-12-07 10:07:47,272 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:47,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:47,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1643402821, now seen corresponding path program 1 times [2019-12-07 10:07:47,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:47,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095127783] [2019-12-07 10:07:47,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:47,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095127783] [2019-12-07 10:07:47,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:47,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 10:07:47,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045628664] [2019-12-07 10:07:47,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:07:47,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:47,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:07:47,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:07:47,312 INFO L87 Difference]: Start difference. First operand 142 states and 197 transitions. Second operand 5 states. [2019-12-07 10:07:47,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:47,356 INFO L93 Difference]: Finished difference Result 429 states and 593 transitions. [2019-12-07 10:07:47,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:07:47,357 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-12-07 10:07:47,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:47,358 INFO L225 Difference]: With dead ends: 429 [2019-12-07 10:07:47,358 INFO L226 Difference]: Without dead ends: 294 [2019-12-07 10:07:47,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:07:47,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-12-07 10:07:47,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 148. [2019-12-07 10:07:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-12-07 10:07:47,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 203 transitions. [2019-12-07 10:07:47,371 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 203 transitions. Word has length 35 [2019-12-07 10:07:47,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:47,371 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 203 transitions. [2019-12-07 10:07:47,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:07:47,371 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 203 transitions. [2019-12-07 10:07:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 10:07:47,372 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:47,372 INFO L410 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] [2019-12-07 10:07:47,373 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:47,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:47,373 INFO L82 PathProgramCache]: Analyzing trace with hash 632285571, now seen corresponding path program 1 times [2019-12-07 10:07:47,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:47,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420392062] [2019-12-07 10:07:47,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:47,402 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420392062] [2019-12-07 10:07:47,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:47,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 10:07:47,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375938247] [2019-12-07 10:07:47,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:07:47,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:47,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:07:47,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:47,411 INFO L87 Difference]: Start difference. First operand 148 states and 203 transitions. Second operand 4 states. [2019-12-07 10:07:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:47,437 INFO L93 Difference]: Finished difference Result 373 states and 511 transitions. [2019-12-07 10:07:47,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:07:47,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-12-07 10:07:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:47,439 INFO L225 Difference]: With dead ends: 373 [2019-12-07 10:07:47,439 INFO L226 Difference]: Without dead ends: 232 [2019-12-07 10:07:47,439 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:07:47,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-12-07 10:07:47,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 152. [2019-12-07 10:07:47,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-12-07 10:07:47,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 207 transitions. [2019-12-07 10:07:47,448 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 207 transitions. Word has length 35 [2019-12-07 10:07:47,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:47,448 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 207 transitions. [2019-12-07 10:07:47,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:07:47,448 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2019-12-07 10:07:47,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 10:07:47,449 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:47,449 INFO L410 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] [2019-12-07 10:07:47,449 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:47,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:47,450 INFO L82 PathProgramCache]: Analyzing trace with hash -388782783, now seen corresponding path program 1 times [2019-12-07 10:07:47,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:47,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859370578] [2019-12-07 10:07:47,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:47,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:47,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859370578] [2019-12-07 10:07:47,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:47,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 10:07:47,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516751046] [2019-12-07 10:07:47,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:47,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:47,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:47,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:47,473 INFO L87 Difference]: Start difference. First operand 152 states and 207 transitions. Second operand 3 states. [2019-12-07 10:07:47,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:47,493 INFO L93 Difference]: Finished difference Result 383 states and 521 transitions. [2019-12-07 10:07:47,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:47,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-12-07 10:07:47,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:47,494 INFO L225 Difference]: With dead ends: 383 [2019-12-07 10:07:47,494 INFO L226 Difference]: Without dead ends: 238 [2019-12-07 10:07:47,495 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-12-07 10:07:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2019-12-07 10:07:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-12-07 10:07:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 315 transitions. [2019-12-07 10:07:47,509 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 315 transitions. Word has length 35 [2019-12-07 10:07:47,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:47,509 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 315 transitions. [2019-12-07 10:07:47,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 315 transitions. [2019-12-07 10:07:47,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 10:07:47,510 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:47,510 INFO L410 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] [2019-12-07 10:07:47,510 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:47,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:47,510 INFO L82 PathProgramCache]: Analyzing trace with hash -713441279, now seen corresponding path program 1 times [2019-12-07 10:07:47,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:47,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780602284] [2019-12-07 10:07:47,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:47,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:47,559 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780602284] [2019-12-07 10:07:47,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:47,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 10:07:47,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950466343] [2019-12-07 10:07:47,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 10:07:47,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:47,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 10:07:47,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:07:47,560 INFO L87 Difference]: Start difference. First operand 238 states and 315 transitions. Second operand 8 states. [2019-12-07 10:07:47,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:47,820 INFO L93 Difference]: Finished difference Result 877 states and 1165 transitions. [2019-12-07 10:07:47,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 10:07:47,821 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2019-12-07 10:07:47,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:47,825 INFO L225 Difference]: With dead ends: 877 [2019-12-07 10:07:47,825 INFO L226 Difference]: Without dead ends: 646 [2019-12-07 10:07:47,826 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2019-12-07 10:07:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2019-12-07 10:07:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 238. [2019-12-07 10:07:47,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-12-07 10:07:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 309 transitions. [2019-12-07 10:07:47,845 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 309 transitions. Word has length 36 [2019-12-07 10:07:47,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:47,845 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 309 transitions. [2019-12-07 10:07:47,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 10:07:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 309 transitions. [2019-12-07 10:07:47,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 10:07:47,846 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:47,846 INFO L410 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] [2019-12-07 10:07:47,847 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:47,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:47,847 INFO L82 PathProgramCache]: Analyzing trace with hash -838060658, now seen corresponding path program 1 times [2019-12-07 10:07:47,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:47,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644190470] [2019-12-07 10:07:47,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:47,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644190470] [2019-12-07 10:07:47,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:47,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:07:47,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536606201] [2019-12-07 10:07:47,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:47,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:47,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:47,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:47,874 INFO L87 Difference]: Start difference. First operand 238 states and 309 transitions. Second operand 3 states. [2019-12-07 10:07:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:47,903 INFO L93 Difference]: Finished difference Result 327 states and 426 transitions. [2019-12-07 10:07:47,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:47,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-12-07 10:07:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:47,906 INFO L225 Difference]: With dead ends: 327 [2019-12-07 10:07:47,906 INFO L226 Difference]: Without dead ends: 325 [2019-12-07 10:07:47,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:07:47,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-07 10:07:47,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 258. [2019-12-07 10:07:47,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-12-07 10:07:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 339 transitions. [2019-12-07 10:07:47,928 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 339 transitions. Word has length 51 [2019-12-07 10:07:47,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:47,928 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 339 transitions. [2019-12-07 10:07:47,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:47,929 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 339 transitions. [2019-12-07 10:07:47,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-12-07 10:07:47,929 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:47,929 INFO L410 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] [2019-12-07 10:07:47,930 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:47,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:47,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1134302103, now seen corresponding path program 1 times [2019-12-07 10:07:47,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:47,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088541759] [2019-12-07 10:07:47,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:48,062 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:48,062 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:07:48,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:48 BoogieIcfgContainer [2019-12-07 10:07:48,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:07:48,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:07:48,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:07:48,173 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:07:48,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:46" (3/4) ... [2019-12-07 10:07:48,175 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:07:48,265 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_083fb451-fe64-47c2-adb0-663d55be1a8c/bin/uautomizer/witness.graphml [2019-12-07 10:07:48,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:07:48,267 INFO L168 Benchmark]: Toolchain (without parser) took 2808.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.3 MB). Free memory was 942.0 MB in the beginning and 817.2 MB in the end (delta: 124.8 MB). Peak memory consumption was 207.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:48,267 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:48,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.3 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -125.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:48,268 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:48,268 INFO L168 Benchmark]: Boogie Preprocessor took 28.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:48,268 INFO L168 Benchmark]: RCFGBuilder took 452.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.9 MB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:48,268 INFO L168 Benchmark]: TraceAbstraction took 1837.98 ms. Allocated memory is still 1.1 GB. Free memory was 996.9 MB in the beginning and 850.3 MB in the end (delta: 146.7 MB). Peak memory consumption was 146.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:48,269 INFO L168 Benchmark]: Witness Printer took 93.17 ms. Allocated memory is still 1.1 GB. Free memory was 850.3 MB in the beginning and 817.2 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:48,270 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.3 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -125.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 452.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.9 MB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1837.98 ms. Allocated memory is still 1.1 GB. Free memory was 996.9 MB in the beginning and 850.3 MB in the end (delta: 146.7 MB). Peak memory consumption was 146.7 MB. Max. memory is 11.5 GB. * Witness Printer took 93.17 ms. Allocated memory is still 1.1 GB. Free memory was 850.3 MB in the beginning and 817.2 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 946]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L507] int cleanupTimeShifts = 4; [L648] int methAndRunningLastTime ; [L757] int pumpRunning = 0; [L758] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] int retValue_acc ; [L589] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L595] tmp = valid_product() [L597] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L653] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L689] int splverifierCounter ; [L690] int tmp ; [L691] int tmp___0 ; [L692] int tmp___1 ; [L693] int tmp___2 ; [L696] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L771] COND TRUE \read(systemActive) [L793] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L796] COND TRUE ! pumpRunning [L908] int retValue_acc ; [L909] int tmp ; [L910] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L914] tmp = isHighWaterSensorDry() [L916] COND FALSE !(\read(tmp)) [L919] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L921] retValue_acc = tmp___0 [L922] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] tmp = isHighWaterLevel() [L800] COND TRUE \read(tmp) [L827] int tmp ; [L852] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L856] retValue_acc = isMethaneLevelCritical() [L858] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L831] tmp = isMethaneAlarm() [L833] COND FALSE !(\read(tmp)) [L821] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L681] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L700] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L771] COND TRUE \read(systemActive) [L793] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L796] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] COND FALSE !(\read(methAndRunningLastTime)) [L675] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L771] COND TRUE \read(systemActive) [L793] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L796] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L670] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L946] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 93 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 944 SDtfs, 1258 SDslu, 1857 SDs, 0 SdLazy, 217 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 1151 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 19852 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...