./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/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 ea28f55a4b6a2303e55c14d7dbcddcf1e8db1491 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-10-22 09:01:28,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:28,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:28,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:28,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:28,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:28,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:28,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:28,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:28,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:28,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:28,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:28,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:28,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:28,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:28,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:28,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:28,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:28,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:28,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:28,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:28,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:28,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:28,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:28,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:28,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:28,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:28,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:28,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:28,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:28,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:28,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:28,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:28,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:28,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:28,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:28,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:28,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:28,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:28,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:28,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:28,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:01:28,314 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:28,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:28,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:28,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:28,315 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:28,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:28,315 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:28,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:28,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:28,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:28,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:28,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:28,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:28,316 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:28,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:28,317 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:28,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:28,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:28,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:28,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:28,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:28,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:28,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:28,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:28,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:28,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:28,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:28,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:28,319 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/working_dir_be457634-2e9b-4454-ac74-702207c54af1/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 -> ea28f55a4b6a2303e55c14d7dbcddcf1e8db1491 [2019-10-22 09:01:28,341 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:28,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:28,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:28,353 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:28,354 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:28,354 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2019-10-22 09:01:28,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/data/2ec42e222/f349caa03dab4aff923bc9057981ae49/FLAGd17a1532d [2019-10-22 09:01:28,823 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:28,823 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2019-10-22 09:01:28,833 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/data/2ec42e222/f349caa03dab4aff923bc9057981ae49/FLAGd17a1532d [2019-10-22 09:01:29,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/data/2ec42e222/f349caa03dab4aff923bc9057981ae49 [2019-10-22 09:01:29,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:29,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:29,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:29,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:29,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:29,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19405530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29, skipping insertion in model container [2019-10-22 09:01:29,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,191 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:29,232 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:29,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:29,656 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:29,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:29,793 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:29,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29 WrapperNode [2019-10-22 09:01:29,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:29,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:29,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:29,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:29,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:29,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:29,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:29,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:29,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... [2019-10-22 09:01:29,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:29,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:29,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:29,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:29,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/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 [2019-10-22 09:01:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:29,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:01:29,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:30,758 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:30,759 INFO L284 CfgBuilder]: Removed 118 assume(true) statements. [2019-10-22 09:01:30,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:30 BoogieIcfgContainer [2019-10-22 09:01:30,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:30,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:30,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:30,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:30,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:29" (1/3) ... [2019-10-22 09:01:30,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e118cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:30, skipping insertion in model container [2019-10-22 09:01:30,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:29" (2/3) ... [2019-10-22 09:01:30,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e118cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:30, skipping insertion in model container [2019-10-22 09:01:30,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:30" (3/3) ... [2019-10-22 09:01:30,768 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2019-10-22 09:01:30,779 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:30,787 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:01:30,800 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:01:30,827 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:30,828 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:30,828 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:30,830 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:30,830 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:30,830 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:30,830 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:30,830 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:30,848 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2019-10-22 09:01:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:01:30,856 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:30,857 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:30,859 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:30,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:30,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1607383533, now seen corresponding path program 1 times [2019-10-22 09:01:30,875 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:30,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613279965] [2019-10-22 09:01:30,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:30,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:30,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:31,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:31,111 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613279965] [2019-10-22 09:01:31,112 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:31,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:31,113 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239645920] [2019-10-22 09:01:31,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:01:31,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:31,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:01:31,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:31,136 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2019-10-22 09:01:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:31,168 INFO L93 Difference]: Finished difference Result 175 states and 264 transitions. [2019-10-22 09:01:31,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:01:31,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 09:01:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:31,182 INFO L225 Difference]: With dead ends: 175 [2019-10-22 09:01:31,182 INFO L226 Difference]: Without dead ends: 87 [2019-10-22 09:01:31,185 INFO L600 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 [2019-10-22 09:01:31,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-10-22 09:01:31,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-10-22 09:01:31,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 09:01:31,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2019-10-22 09:01:31,231 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 18 [2019-10-22 09:01:31,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:31,232 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2019-10-22 09:01:31,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:01:31,232 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2019-10-22 09:01:31,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:01:31,233 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:31,233 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:31,234 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:31,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:31,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1734754371, now seen corresponding path program 1 times [2019-10-22 09:01:31,235 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:31,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655097479] [2019-10-22 09:01:31,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:31,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:31,352 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655097479] [2019-10-22 09:01:31,352 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:31,352 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:31,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755508831] [2019-10-22 09:01:31,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:31,354 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:31,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:31,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:31,362 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 3 states. [2019-10-22 09:01:31,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:31,376 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2019-10-22 09:01:31,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:31,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 09:01:31,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:31,381 INFO L225 Difference]: With dead ends: 87 [2019-10-22 09:01:31,381 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:01:31,382 INFO L600 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 [2019-10-22 09:01:31,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:01:31,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-22 09:01:31,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 09:01:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-10-22 09:01:31,388 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 19 [2019-10-22 09:01:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:31,389 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-10-22 09:01:31,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-10-22 09:01:31,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 09:01:31,390 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:31,390 INFO L380 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] [2019-10-22 09:01:31,390 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:31,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:31,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1107356745, now seen corresponding path program 1 times [2019-10-22 09:01:31,391 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:31,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421713438] [2019-10-22 09:01:31,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:31,493 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421713438] [2019-10-22 09:01:31,493 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:31,493 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:31,493 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146344554] [2019-10-22 09:01:31,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:31,493 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:31,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:31,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:31,494 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2019-10-22 09:01:31,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:31,523 INFO L93 Difference]: Finished difference Result 71 states and 103 transitions. [2019-10-22 09:01:31,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:31,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 09:01:31,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:31,528 INFO L225 Difference]: With dead ends: 71 [2019-10-22 09:01:31,528 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:01:31,528 INFO L600 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 [2019-10-22 09:01:31,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:01:31,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-22 09:01:31,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 09:01:31,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-10-22 09:01:31,534 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2019-10-22 09:01:31,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:31,534 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-10-22 09:01:31,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-10-22 09:01:31,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 09:01:31,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:31,535 INFO L380 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] [2019-10-22 09:01:31,535 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:31,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:31,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1414852999, now seen corresponding path program 1 times [2019-10-22 09:01:31,536 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:31,536 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586675906] [2019-10-22 09:01:31,536 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,536 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:31,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586675906] [2019-10-22 09:01:31,581 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:31,581 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:31,581 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930858359] [2019-10-22 09:01:31,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:31,582 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:31,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:31,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:31,582 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 3 states. [2019-10-22 09:01:31,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:31,604 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2019-10-22 09:01:31,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:31,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 09:01:31,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:31,605 INFO L225 Difference]: With dead ends: 93 [2019-10-22 09:01:31,605 INFO L226 Difference]: Without dead ends: 61 [2019-10-22 09:01:31,606 INFO L600 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 [2019-10-22 09:01:31,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-10-22 09:01:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2019-10-22 09:01:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-10-22 09:01:31,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2019-10-22 09:01:31,619 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2019-10-22 09:01:31,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:31,619 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2019-10-22 09:01:31,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2019-10-22 09:01:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 09:01:31,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:31,620 INFO L380 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] [2019-10-22 09:01:31,620 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:31,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:31,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1390046811, now seen corresponding path program 1 times [2019-10-22 09:01:31,621 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:31,621 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295678388] [2019-10-22 09:01:31,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:31,746 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295678388] [2019-10-22 09:01:31,746 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:31,747 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:01:31,747 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031458698] [2019-10-22 09:01:31,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:01:31,747 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:31,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:01:31,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:01:31,748 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand 5 states. [2019-10-22 09:01:31,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:31,881 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2019-10-22 09:01:31,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:01:31,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 09:01:31,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:31,882 INFO L225 Difference]: With dead ends: 271 [2019-10-22 09:01:31,883 INFO L226 Difference]: Without dead ends: 219 [2019-10-22 09:01:31,883 INFO L600 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 [2019-10-22 09:01:31,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-10-22 09:01:31,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2019-10-22 09:01:31,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-10-22 09:01:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2019-10-22 09:01:31,899 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2019-10-22 09:01:31,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:31,900 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2019-10-22 09:01:31,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:01:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2019-10-22 09:01:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 09:01:31,901 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:31,901 INFO L380 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] [2019-10-22 09:01:31,901 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:31,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:31,904 INFO L82 PathProgramCache]: Analyzing trace with hash 272516125, now seen corresponding path program 1 times [2019-10-22 09:01:31,904 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:31,904 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334011491] [2019-10-22 09:01:31,904 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,905 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:32,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334011491] [2019-10-22 09:01:32,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:32,017 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:01:32,017 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876681962] [2019-10-22 09:01:32,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:01:32,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:32,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:01:32,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:01:32,018 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand 5 states. [2019-10-22 09:01:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:32,119 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2019-10-22 09:01:32,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 09:01:32,120 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-22 09:01:32,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:32,121 INFO L225 Difference]: With dead ends: 376 [2019-10-22 09:01:32,121 INFO L226 Difference]: Without dead ends: 280 [2019-10-22 09:01:32,122 INFO L600 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 [2019-10-22 09:01:32,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-10-22 09:01:32,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2019-10-22 09:01:32,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-10-22 09:01:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2019-10-22 09:01:32,135 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2019-10-22 09:01:32,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:32,136 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2019-10-22 09:01:32,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:01:32,136 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2019-10-22 09:01:32,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 09:01:32,137 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:32,137 INFO L380 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] [2019-10-22 09:01:32,137 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:32,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:32,138 INFO L82 PathProgramCache]: Analyzing trace with hash -824557763, now seen corresponding path program 1 times [2019-10-22 09:01:32,138 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:32,138 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037564991] [2019-10-22 09:01:32,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:32,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:32,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037564991] [2019-10-22 09:01:32,213 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:32,213 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:01:32,213 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708372521] [2019-10-22 09:01:32,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:01:32,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:32,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:01:32,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:01:32,215 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand 5 states. [2019-10-22 09:01:32,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:32,275 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2019-10-22 09:01:32,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:01:32,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-10-22 09:01:32,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:32,276 INFO L225 Difference]: With dead ends: 273 [2019-10-22 09:01:32,276 INFO L226 Difference]: Without dead ends: 178 [2019-10-22 09:01:32,277 INFO L600 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 [2019-10-22 09:01:32,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-10-22 09:01:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2019-10-22 09:01:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-22 09:01:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2019-10-22 09:01:32,295 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2019-10-22 09:01:32,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:32,296 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2019-10-22 09:01:32,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:01:32,296 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2019-10-22 09:01:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 09:01:32,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:32,297 INFO L380 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] [2019-10-22 09:01:32,299 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:32,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:32,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1835675013, now seen corresponding path program 1 times [2019-10-22 09:01:32,300 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:32,300 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543266496] [2019-10-22 09:01:32,300 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,300 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:32,352 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543266496] [2019-10-22 09:01:32,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:32,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:01:32,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398865247] [2019-10-22 09:01:32,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:32,354 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:32,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:32,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:32,354 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand 4 states. [2019-10-22 09:01:32,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:32,389 INFO L93 Difference]: Finished difference Result 255 states and 347 transitions. [2019-10-22 09:01:32,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:01:32,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-10-22 09:01:32,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:32,390 INFO L225 Difference]: With dead ends: 255 [2019-10-22 09:01:32,391 INFO L226 Difference]: Without dead ends: 154 [2019-10-22 09:01:32,391 INFO L600 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 [2019-10-22 09:01:32,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-22 09:01:32,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 112. [2019-10-22 09:01:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-10-22 09:01:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2019-10-22 09:01:32,415 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2019-10-22 09:01:32,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:32,415 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2019-10-22 09:01:32,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:32,415 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2019-10-22 09:01:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 09:01:32,416 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:32,416 INFO L380 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] [2019-10-22 09:01:32,417 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:32,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:32,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1438223929, now seen corresponding path program 1 times [2019-10-22 09:01:32,417 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:32,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303555004] [2019-10-22 09:01:32,421 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,421 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:32,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:32,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303555004] [2019-10-22 09:01:32,473 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:32,473 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:32,473 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612093879] [2019-10-22 09:01:32,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:32,474 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:32,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:32,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:32,475 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand 3 states. [2019-10-22 09:01:32,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:32,500 INFO L93 Difference]: Finished difference Result 265 states and 357 transitions. [2019-10-22 09:01:32,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:32,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-10-22 09:01:32,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:32,502 INFO L225 Difference]: With dead ends: 265 [2019-10-22 09:01:32,502 INFO L226 Difference]: Without dead ends: 160 [2019-10-22 09:01:32,502 INFO L600 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 [2019-10-22 09:01:32,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-10-22 09:01:32,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-10-22 09:01:32,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-10-22 09:01:32,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2019-10-22 09:01:32,521 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 35 [2019-10-22 09:01:32,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:32,522 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2019-10-22 09:01:32,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:32,522 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2019-10-22 09:01:32,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-22 09:01:32,523 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:32,523 INFO L380 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] [2019-10-22 09:01:32,523 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:32,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:32,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1113565433, now seen corresponding path program 1 times [2019-10-22 09:01:32,524 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:32,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550188619] [2019-10-22 09:01:32,524 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,524 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:32,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550188619] [2019-10-22 09:01:32,584 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:32,584 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:01:32,584 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096025261] [2019-10-22 09:01:32,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:01:32,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:32,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:01:32,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:32,590 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand 6 states. [2019-10-22 09:01:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:32,770 INFO L93 Difference]: Finished difference Result 485 states and 635 transitions. [2019-10-22 09:01:32,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 09:01:32,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-10-22 09:01:32,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:32,772 INFO L225 Difference]: With dead ends: 485 [2019-10-22 09:01:32,772 INFO L226 Difference]: Without dead ends: 332 [2019-10-22 09:01:32,773 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:01:32,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-22 09:01:32,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 160. [2019-10-22 09:01:32,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-10-22 09:01:32,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 205 transitions. [2019-10-22 09:01:32,794 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 205 transitions. Word has length 36 [2019-10-22 09:01:32,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:32,795 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 205 transitions. [2019-10-22 09:01:32,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:01:32,795 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 205 transitions. [2019-10-22 09:01:32,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-22 09:01:32,798 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:32,798 INFO L380 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] [2019-10-22 09:01:32,799 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:32,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1527108990, now seen corresponding path program 1 times [2019-10-22 09:01:32,799 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:32,799 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884748250] [2019-10-22 09:01:32,799 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,800 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:32,842 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:32,842 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884748250] [2019-10-22 09:01:32,842 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:32,842 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:01:32,842 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218651272] [2019-10-22 09:01:32,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:32,843 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:32,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:32,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:32,865 INFO L87 Difference]: Start difference. First operand 160 states and 205 transitions. Second operand 3 states. [2019-10-22 09:01:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:32,906 INFO L93 Difference]: Finished difference Result 233 states and 301 transitions. [2019-10-22 09:01:32,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:32,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-10-22 09:01:32,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:32,908 INFO L225 Difference]: With dead ends: 233 [2019-10-22 09:01:32,908 INFO L226 Difference]: Without dead ends: 231 [2019-10-22 09:01:32,909 INFO L600 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 [2019-10-22 09:01:32,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2019-10-22 09:01:32,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 180. [2019-10-22 09:01:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-10-22 09:01:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 235 transitions. [2019-10-22 09:01:32,924 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 235 transitions. Word has length 51 [2019-10-22 09:01:32,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:32,925 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 235 transitions. [2019-10-22 09:01:32,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:32,925 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 235 transitions. [2019-10-22 09:01:32,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-22 09:01:32,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:32,927 INFO L380 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] [2019-10-22 09:01:32,927 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:32,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:32,927 INFO L82 PathProgramCache]: Analyzing trace with hash 338659975, now seen corresponding path program 1 times [2019-10-22 09:01:32,927 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:32,927 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303704527] [2019-10-22 09:01:32,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:32,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:33,534 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:33,534 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:01:33,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:33 BoogieIcfgContainer [2019-10-22 09:01:33,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:33,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:33,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:33,663 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:33,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:30" (3/4) ... [2019-10-22 09:01:33,666 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:01:33,772 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_be457634-2e9b-4454-ac74-702207c54af1/bin/uautomizer/witness.graphml [2019-10-22 09:01:33,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:33,775 INFO L168 Benchmark]: Toolchain (without parser) took 4597.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 939.2 MB in the beginning and 983.6 MB in the end (delta: -44.5 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,775 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:33,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,776 INFO L168 Benchmark]: Boogie Preprocessor took 48.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:33,776 INFO L168 Benchmark]: RCFGBuilder took 841.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,776 INFO L168 Benchmark]: TraceAbstraction took 2901.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 19.5 MB). Peak memory consumption was 101.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,776 INFO L168 Benchmark]: Witness Printer took 109.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 983.6 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,778 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 616.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 841.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2901.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.3 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 19.5 MB). Peak memory consumption was 101.8 MB. Max. memory is 11.5 GB. * Witness Printer took 109.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 983.6 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 844]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L486] int pumpRunning = 0; [L487] int systemActive = 1; [L666] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L850] int waterLevel = 1; [L851] int methaneLevelCritical = 0; [L817] int retValue_acc ; [L818] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L734] int retValue_acc ; [L737] retValue_acc = 1 [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L671] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L412] int splverifierCounter ; [L413] int tmp ; [L414] int tmp___0 ; [L415] int tmp___1 ; [L416] int tmp___2 ; [L419] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L421] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L423] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L429] tmp = __VERIFIER_nondet_int() [L431] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] COND TRUE waterLevel < 2 [L869] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___2) [L660] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L494] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L501] COND TRUE \read(systemActive) [L523] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L526] COND TRUE ! pumpRunning [L638] int retValue_acc ; [L639] int tmp ; [L640] int tmp___0 ; [L930] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L933] COND FALSE !(waterLevel < 2) [L937] retValue_acc = 0 [L938] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L644] tmp = isHighWaterSensorDry() [L646] COND FALSE !(\read(tmp)) [L649] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] retValue_acc = tmp___0 [L652] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] tmp = isHighWaterLevel() [L530] COND TRUE \read(tmp) [L557] int tmp ; [L582] int retValue_acc ; [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] retValue_acc = isMethaneLevelCritical() [L588] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] tmp = isMethaneAlarm() [L563] COND FALSE !(\read(tmp)) [L551] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L676] int tmp ; [L677] int tmp___0 ; [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L681] tmp = isMethaneLevelCritical() [L683] COND FALSE !(\read(tmp)) [L699] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L421] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L423] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L429] tmp = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] COND FALSE !(\read(methaneLevelCritical)) [L883] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___2) [L660] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L494] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L856] COND TRUE waterLevel > 0 [L857] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L501] COND TRUE \read(systemActive) [L523] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L526] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] int tmp ; [L677] int tmp___0 ; [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L681] tmp = isMethaneLevelCritical() [L683] COND TRUE \read(tmp) [L593] int retValue_acc ; [L596] retValue_acc = pumpRunning [L597] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L685] tmp___0 = isPumpRunning() [L687] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L688] COND FALSE !(\read(methAndRunningLastTime)) [L693] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L421] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L423] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L429] tmp = __VERIFIER_nondet_int() [L431] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L439] tmp___0 = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L449] tmp___2 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___2) [L660] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L856] COND TRUE waterLevel > 0 [L857] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L501] COND TRUE \read(systemActive) [L523] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L526] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L676] int tmp ; [L677] int tmp___0 ; [L889] int retValue_acc ; [L892] retValue_acc = methaneLevelCritical [L893] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L681] tmp = isMethaneLevelCritical() [L683] COND TRUE \read(tmp) [L593] int retValue_acc ; [L596] retValue_acc = pumpRunning [L597] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L685] tmp___0 = isPumpRunning() [L687] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L688] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L844] __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, 91 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.8s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 837 SDtfs, 942 SDslu, 1280 SDs, 0 SdLazy, 171 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred 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, 631 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 19622 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...