./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/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 6b0dd49774129de8b6944c8beb9911dd98f5e936 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:51:57,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:57,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:57,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:57,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:57,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:57,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:57,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:57,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:57,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:57,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:57,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:57,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:57,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:57,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:57,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:57,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:57,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:57,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:57,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:57,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:57,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:57,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:57,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:57,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:57,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:57,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:57,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:57,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:57,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:57,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:57,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:58,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:58,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:58,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:58,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:58,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:58,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:58,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:58,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:58,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:58,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:51:58,028 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:58,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:58,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:58,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:58,038 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:58,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:58,039 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:58,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:58,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:58,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:58,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:58,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:58,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:58,042 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:58,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:58,043 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:58,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:58,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:58,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:58,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:58,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:58,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:58,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:58,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:58,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:58,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:58,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:51:58,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:58,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/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 -> 6b0dd49774129de8b6944c8beb9911dd98f5e936 [2019-11-25 08:51:58,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:58,232 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:58,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:58,236 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:58,236 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:58,238 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-11-25 08:51:58,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/data/1a10baa56/48b94506098b4feb8f888890c46fde20/FLAGb11bd3fe9 [2019-11-25 08:51:58,774 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:58,775 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-11-25 08:51:58,787 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/data/1a10baa56/48b94506098b4feb8f888890c46fde20/FLAGb11bd3fe9 [2019-11-25 08:51:59,098 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/data/1a10baa56/48b94506098b4feb8f888890c46fde20 [2019-11-25 08:51:59,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:59,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:59,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:59,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:59,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:59,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1206ce3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59, skipping insertion in model container [2019-11-25 08:51:59,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:59,186 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:59,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:59,577 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:59,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:59,704 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:59,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59 WrapperNode [2019-11-25 08:51:59,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:59,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:59,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:59,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:59,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:59,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:59,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:59,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:59,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:59,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:59,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:59,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:59,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/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 [2019-11-25 08:51:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:51:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:59,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:00,790 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:00,791 INFO L284 CfgBuilder]: Removed 168 assume(true) statements. [2019-11-25 08:52:00,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:00 BoogieIcfgContainer [2019-11-25 08:52:00,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:00,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:00,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:00,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:00,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:59" (1/3) ... [2019-11-25 08:52:00,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38129dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:00, skipping insertion in model container [2019-11-25 08:52:00,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (2/3) ... [2019-11-25 08:52:00,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38129dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:00, skipping insertion in model container [2019-11-25 08:52:00,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:00" (3/3) ... [2019-11-25 08:52:00,799 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2019-11-25 08:52:00,808 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:00,817 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-25 08:52:00,827 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-25 08:52:00,856 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:00,856 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:00,856 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:00,856 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:00,856 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:00,857 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:00,857 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:00,857 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-11-25 08:52:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-25 08:52:00,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:00,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:00,884 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:00,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:00,888 INFO L82 PathProgramCache]: Analyzing trace with hash 228795593, now seen corresponding path program 1 times [2019-11-25 08:52:00,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:00,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606058148] [2019-11-25 08:52:00,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:01,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606058148] [2019-11-25 08:52:01,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:01,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:52:01,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984375617] [2019-11-25 08:52:01,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:52:01,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:01,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:52:01,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:52:01,227 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-11-25 08:52:01,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:01,256 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-11-25 08:52:01,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:52:01,257 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-25 08:52:01,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:01,268 INFO L225 Difference]: With dead ends: 232 [2019-11-25 08:52:01,269 INFO L226 Difference]: Without dead ends: 115 [2019-11-25 08:52:01,272 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:52:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-25 08:52:01,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-11-25 08:52:01,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-25 08:52:01,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-11-25 08:52:01,321 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2019-11-25 08:52:01,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:01,322 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-11-25 08:52:01,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:52:01,322 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-11-25 08:52:01,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-25 08:52:01,323 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:01,323 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:01,324 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:01,324 INFO L82 PathProgramCache]: Analyzing trace with hash 303686568, now seen corresponding path program 1 times [2019-11-25 08:52:01,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:01,324 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126243013] [2019-11-25 08:52:01,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:01,432 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126243013] [2019-11-25 08:52:01,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:01,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:52:01,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764336442] [2019-11-25 08:52:01,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:52:01,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:01,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:52:01,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:01,435 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2019-11-25 08:52:01,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:01,457 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-11-25 08:52:01,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:52:01,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-25 08:52:01,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:01,459 INFO L225 Difference]: With dead ends: 115 [2019-11-25 08:52:01,459 INFO L226 Difference]: Without dead ends: 49 [2019-11-25 08:52:01,460 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:01,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-25 08:52:01,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-11-25 08:52:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-25 08:52:01,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-11-25 08:52:01,466 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-11-25 08:52:01,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:01,466 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-11-25 08:52:01,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:52:01,467 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-11-25 08:52:01,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-25 08:52:01,467 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:01,468 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:01,468 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:01,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1740217190, now seen corresponding path program 1 times [2019-11-25 08:52:01,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:01,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326461250] [2019-11-25 08:52:01,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:01,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:01,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326461250] [2019-11-25 08:52:01,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:01,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:52:01,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630782941] [2019-11-25 08:52:01,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:52:01,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:01,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:52:01,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:01,595 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 5 states. [2019-11-25 08:52:01,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:01,671 INFO L93 Difference]: Finished difference Result 117 states and 173 transitions. [2019-11-25 08:52:01,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:52:01,672 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-25 08:52:01,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:01,673 INFO L225 Difference]: With dead ends: 117 [2019-11-25 08:52:01,673 INFO L226 Difference]: Without dead ends: 74 [2019-11-25 08:52:01,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:52:01,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-11-25 08:52:01,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2019-11-25 08:52:01,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-25 08:52:01,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions. [2019-11-25 08:52:01,684 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 24 [2019-11-25 08:52:01,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:01,684 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 103 transitions. [2019-11-25 08:52:01,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:52:01,685 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-11-25 08:52:01,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-25 08:52:01,686 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:01,686 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:01,686 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:01,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:01,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1869059729, now seen corresponding path program 1 times [2019-11-25 08:52:01,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:01,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795797843] [2019-11-25 08:52:01,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:01,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795797843] [2019-11-25 08:52:01,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:01,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:52:01,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662176527] [2019-11-25 08:52:01,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:52:01,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:01,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:52:01,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:01,756 INFO L87 Difference]: Start difference. First operand 70 states and 103 transitions. Second operand 3 states. [2019-11-25 08:52:01,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:01,805 INFO L93 Difference]: Finished difference Result 157 states and 233 transitions. [2019-11-25 08:52:01,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:52:01,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-25 08:52:01,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:01,807 INFO L225 Difference]: With dead ends: 157 [2019-11-25 08:52:01,807 INFO L226 Difference]: Without dead ends: 93 [2019-11-25 08:52:01,808 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:01,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-25 08:52:01,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-11-25 08:52:01,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-25 08:52:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2019-11-25 08:52:01,819 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 26 [2019-11-25 08:52:01,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:01,819 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2019-11-25 08:52:01,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:52:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2019-11-25 08:52:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-25 08:52:01,820 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:01,821 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:01,821 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:01,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:01,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1176876603, now seen corresponding path program 1 times [2019-11-25 08:52:01,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:01,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355586760] [2019-11-25 08:52:01,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:01,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:01,896 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355586760] [2019-11-25 08:52:01,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:01,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:52:01,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985357214] [2019-11-25 08:52:01,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:52:01,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:01,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:52:01,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:01,898 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand 5 states. [2019-11-25 08:52:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:02,061 INFO L93 Difference]: Finished difference Result 474 states and 695 transitions. [2019-11-25 08:52:02,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:02,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-25 08:52:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:02,066 INFO L225 Difference]: With dead ends: 474 [2019-11-25 08:52:02,066 INFO L226 Difference]: Without dead ends: 389 [2019-11-25 08:52:02,067 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:52:02,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-11-25 08:52:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 156. [2019-11-25 08:52:02,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-25 08:52:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions. [2019-11-25 08:52:02,108 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 27 [2019-11-25 08:52:02,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:02,109 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 218 transitions. [2019-11-25 08:52:02,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:52:02,109 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions. [2019-11-25 08:52:02,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-25 08:52:02,111 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:02,111 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:02,111 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:02,112 INFO L82 PathProgramCache]: Analyzing trace with hash -523387139, now seen corresponding path program 1 times [2019-11-25 08:52:02,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:02,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162127175] [2019-11-25 08:52:02,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:52:02,357 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:52:02,358 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:52:02,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:02 BoogieIcfgContainer [2019-11-25 08:52:02,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:02,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:02,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:02,491 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:02,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:00" (3/4) ... [2019-11-25 08:52:02,493 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:52:02,574 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fa800ea6-f483-40b4-9a49-8411eb72954c/bin/uautomizer/witness.graphml [2019-11-25 08:52:02,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:02,577 INFO L168 Benchmark]: Toolchain (without parser) took 3474.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.7 MB in the beginning and 886.8 MB in the end (delta: 57.9 MB). Peak memory consumption was 190.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:02,577 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:02,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:02,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.70 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:02,579 INFO L168 Benchmark]: Boogie Preprocessor took 102.28 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:02,579 INFO L168 Benchmark]: RCFGBuilder took 915.96 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: 61.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:02,580 INFO L168 Benchmark]: TraceAbstraction took 1697.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 900.2 MB in the end (delta: 134.0 MB). Peak memory consumption was 134.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:02,580 INFO L168 Benchmark]: Witness Printer took 84.70 ms. Allocated memory is still 1.2 GB. Free memory was 900.2 MB in the beginning and 886.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:02,582 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 602.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.70 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 102.28 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 915.96 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: 61.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1697.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 900.2 MB in the end (delta: 134.0 MB). Peak memory consumption was 134.0 MB. Max. memory is 11.5 GB. * Witness Printer took 84.70 ms. Allocated memory is still 1.2 GB. Free memory was 900.2 MB in the beginning and 886.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L515] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L341] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 493 SDtfs, 652 SDslu, 357 SDs, 0 SdLazy, 65 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=5, 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, 5 MinimizatonAttempts, 239 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...