./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59866f864e0ec5bf7736536ea91554085144fb1d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:26:56,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:26:56,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:26:56,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:26:56,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:26:56,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:26:56,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:26:56,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:26:56,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:26:56,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:26:56,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:26:56,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:26:56,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:26:56,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:26:56,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:26:56,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:26:56,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:26:56,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:26:56,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:26:56,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:26:56,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:26:56,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:26:56,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:26:56,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:26:56,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:26:56,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:26:56,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:26:56,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:26:56,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:26:56,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:26:56,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:26:56,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:26:56,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:26:56,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:26:56,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:26:56,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:26:56,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:26:56,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:26:56,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:26:56,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:26:56,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:26:56,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:26:57,003 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:26:57,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:26:57,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:26:57,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:26:57,008 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:26:57,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:26:57,008 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:26:57,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:26:57,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:26:57,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:26:57,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:26:57,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:26:57,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:26:57,012 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:26:57,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:26:57,012 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:26:57,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:26:57,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:26:57,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:26:57,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:26:57,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:26:57,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:26:57,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:26:57,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:26:57,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:26:57,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:26:57,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:26:57,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:26:57,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:26:57,016 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__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 -> 59866f864e0ec5bf7736536ea91554085144fb1d [2019-11-28 17:26:57,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:26:57,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:26:57,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:26:57,377 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:26:57,378 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:26:57,379 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2019-11-28 17:26:57,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e49d135f/16a37bdcb8e34f0baa723457b616ce9f/FLAGbbdf6ca0a [2019-11-28 17:26:57,991 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:26:57,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2019-11-28 17:26:58,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e49d135f/16a37bdcb8e34f0baa723457b616ce9f/FLAGbbdf6ca0a [2019-11-28 17:26:58,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e49d135f/16a37bdcb8e34f0baa723457b616ce9f [2019-11-28 17:26:58,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:26:58,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:26:58,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:26:58,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:26:58,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:26:58,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:58,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ebb17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58, skipping insertion in model container [2019-11-28 17:26:58,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:58,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:26:58,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:26:58,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:26:58,853 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:26:58,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:26:58,987 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:26:58,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58 WrapperNode [2019-11-28 17:26:58,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:26:58,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:26:58,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:26:58,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:26:58,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:59,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:59,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:26:59,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:26:59,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:26:59,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:26:59,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:59,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:59,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:59,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:59,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:59,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:59,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... [2019-11-28 17:26:59,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:26:59,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:26:59,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:26:59,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:26:59,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 17:26:59,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:26:59,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 17:26:59,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:26:59,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:26:59,933 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:26:59,933 INFO L287 CfgBuilder]: Removed 114 assume(true) statements. [2019-11-28 17:26:59,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:26:59 BoogieIcfgContainer [2019-11-28 17:26:59,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:26:59,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:26:59,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:26:59,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:26:59,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:26:58" (1/3) ... [2019-11-28 17:26:59,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d67e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:26:59, skipping insertion in model container [2019-11-28 17:26:59,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:26:58" (2/3) ... [2019-11-28 17:26:59,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d67e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:26:59, skipping insertion in model container [2019-11-28 17:26:59,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:26:59" (3/3) ... [2019-11-28 17:26:59,943 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2019-11-28 17:26:59,953 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:26:59,961 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 17:26:59,974 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 17:27:00,002 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:27:00,002 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:27:00,002 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:27:00,003 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:27:00,003 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:27:00,003 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:27:00,003 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:27:00,004 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:27:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-11-28 17:27:00,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 17:27:00,030 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:00,031 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:00,032 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:00,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:00,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1847621448, now seen corresponding path program 1 times [2019-11-28 17:27:00,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:00,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806915080] [2019-11-28 17:27:00,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:00,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806915080] [2019-11-28 17:27:00,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:00,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:27:00,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996397923] [2019-11-28 17:27:00,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:27:00,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:00,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:27:00,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:27:00,351 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2019-11-28 17:27:00,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:00,381 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2019-11-28 17:27:00,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:27:00,383 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-28 17:27:00,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:00,394 INFO L225 Difference]: With dead ends: 168 [2019-11-28 17:27:00,395 INFO L226 Difference]: Without dead ends: 83 [2019-11-28 17:27:00,398 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 [2019-11-28 17:27:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-28 17:27:00,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-11-28 17:27:00,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-28 17:27:00,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-11-28 17:27:00,441 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2019-11-28 17:27:00,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:00,442 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-11-28 17:27:00,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:27:00,442 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2019-11-28 17:27:00,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 17:27:00,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:00,444 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:00,444 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:00,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:00,445 INFO L82 PathProgramCache]: Analyzing trace with hash 800864551, now seen corresponding path program 1 times [2019-11-28 17:27:00,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:00,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343473560] [2019-11-28 17:27:00,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:00,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343473560] [2019-11-28 17:27:00,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:00,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:27:00,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95696525] [2019-11-28 17:27:00,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:27:00,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:00,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:27:00,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:27:00,569 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2019-11-28 17:27:00,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:00,590 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2019-11-28 17:27:00,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:27:00,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-28 17:27:00,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:00,594 INFO L225 Difference]: With dead ends: 83 [2019-11-28 17:27:00,595 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 17:27:00,596 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 [2019-11-28 17:27:00,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 17:27:00,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-28 17:27:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-28 17:27:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-11-28 17:27:00,609 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2019-11-28 17:27:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:00,610 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-11-28 17:27:00,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:27:00,610 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-11-28 17:27:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 17:27:00,613 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:00,613 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] [2019-11-28 17:27:00,613 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:00,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:00,615 INFO L82 PathProgramCache]: Analyzing trace with hash -2126819203, now seen corresponding path program 1 times [2019-11-28 17:27:00,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:00,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153966792] [2019-11-28 17:27:00,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:00,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:00,779 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153966792] [2019-11-28 17:27:00,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:00,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:27:00,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154647274] [2019-11-28 17:27:00,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 17:27:00,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:00,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 17:27:00,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 17:27:00,781 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 6 states. [2019-11-28 17:27:00,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:00,915 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2019-11-28 17:27:00,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:27:00,917 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-28 17:27:00,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:00,918 INFO L225 Difference]: With dead ends: 68 [2019-11-28 17:27:00,919 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 17:27:00,919 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:27:00,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 17:27:00,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-28 17:27:00,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-28 17:27:00,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2019-11-28 17:27:00,931 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2019-11-28 17:27:00,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:00,939 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2019-11-28 17:27:00,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 17:27:00,939 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2019-11-28 17:27:00,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 17:27:00,940 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:00,940 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] [2019-11-28 17:27:00,941 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:00,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:00,941 INFO L82 PathProgramCache]: Analyzing trace with hash -306622024, now seen corresponding path program 1 times [2019-11-28 17:27:00,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:00,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302662017] [2019-11-28 17:27:00,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:01,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302662017] [2019-11-28 17:27:01,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:01,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:27:01,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467896214] [2019-11-28 17:27:01,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:27:01,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:01,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:27:01,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:27:01,061 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2019-11-28 17:27:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:01,113 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2019-11-28 17:27:01,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:27:01,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-28 17:27:01,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:01,116 INFO L225 Difference]: With dead ends: 89 [2019-11-28 17:27:01,116 INFO L226 Difference]: Without dead ends: 58 [2019-11-28 17:27:01,117 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 [2019-11-28 17:27:01,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-11-28 17:27:01,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-11-28 17:27:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-11-28 17:27:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2019-11-28 17:27:01,127 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2019-11-28 17:27:01,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:01,128 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2019-11-28 17:27:01,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:27:01,128 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2019-11-28 17:27:01,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 17:27:01,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:01,129 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:27:01,130 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:01,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:01,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1880803796, now seen corresponding path program 1 times [2019-11-28 17:27:01,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:01,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364552696] [2019-11-28 17:27:01,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:01,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:01,241 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364552696] [2019-11-28 17:27:01,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:01,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 17:27:01,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418261991] [2019-11-28 17:27:01,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 17:27:01,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:01,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 17:27:01,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:27:01,244 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 8 states. [2019-11-28 17:27:01,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:01,640 INFO L93 Difference]: Finished difference Result 347 states and 506 transitions. [2019-11-28 17:27:01,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-28 17:27:01,641 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2019-11-28 17:27:01,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:01,644 INFO L225 Difference]: With dead ends: 347 [2019-11-28 17:27:01,645 INFO L226 Difference]: Without dead ends: 297 [2019-11-28 17:27:01,646 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-11-28 17:27:01,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2019-11-28 17:27:01,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 140. [2019-11-28 17:27:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-28 17:27:01,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2019-11-28 17:27:01,671 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 29 [2019-11-28 17:27:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:01,672 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2019-11-28 17:27:01,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 17:27:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2019-11-28 17:27:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-28 17:27:01,675 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:01,675 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-11-28 17:27:01,676 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:01,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:01,676 INFO L82 PathProgramCache]: Analyzing trace with hash -130752981, now seen corresponding path program 1 times [2019-11-28 17:27:01,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:01,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821528265] [2019-11-28 17:27:01,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 17:27:01,770 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821528265] [2019-11-28 17:27:01,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:01,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:27:01,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912875551] [2019-11-28 17:27:01,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:27:01,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:01,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:27:01,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:27:01,773 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand 5 states. [2019-11-28 17:27:01,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:01,846 INFO L93 Difference]: Finished difference Result 388 states and 531 transitions. [2019-11-28 17:27:01,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:27:01,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-11-28 17:27:01,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:01,849 INFO L225 Difference]: With dead ends: 388 [2019-11-28 17:27:01,850 INFO L226 Difference]: Without dead ends: 254 [2019-11-28 17:27:01,851 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-28 17:27:01,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-11-28 17:27:01,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 149. [2019-11-28 17:27:01,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-28 17:27:01,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2019-11-28 17:27:01,901 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 47 [2019-11-28 17:27:01,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:01,902 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2019-11-28 17:27:01,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:27:01,903 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2019-11-28 17:27:01,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-28 17:27:01,907 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:01,911 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-11-28 17:27:01,912 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:01,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:01,913 INFO L82 PathProgramCache]: Analyzing trace with hash -640226071, now seen corresponding path program 1 times [2019-11-28 17:27:01,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:01,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59807488] [2019-11-28 17:27:01,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:01,987 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 17:27:01,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59807488] [2019-11-28 17:27:01,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:27:01,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:27:01,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142637558] [2019-11-28 17:27:01,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:27:01,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:01,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:27:01,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:27:01,992 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand 4 states. [2019-11-28 17:27:02,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:02,035 INFO L93 Difference]: Finished difference Result 311 states and 422 transitions. [2019-11-28 17:27:02,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:27:02,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-11-28 17:27:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:02,038 INFO L225 Difference]: With dead ends: 311 [2019-11-28 17:27:02,038 INFO L226 Difference]: Without dead ends: 168 [2019-11-28 17:27:02,039 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:27:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-28 17:27:02,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 123. [2019-11-28 17:27:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-28 17:27:02,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2019-11-28 17:27:02,053 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 164 transitions. Word has length 47 [2019-11-28 17:27:02,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:02,054 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 164 transitions. [2019-11-28 17:27:02,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:27:02,054 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2019-11-28 17:27:02,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-28 17:27:02,057 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:02,057 INFO L410 BasicCegarLoop]: trace histogram [2, 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] [2019-11-28 17:27:02,057 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:02,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:02,058 INFO L82 PathProgramCache]: Analyzing trace with hash -445753367, now seen corresponding path program 1 times [2019-11-28 17:27:02,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:02,059 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307840238] [2019-11-28 17:27:02,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,169 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:02,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307840238] [2019-11-28 17:27:02,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560886092] [2019-11-28 17:27:02,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:27:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:27:02,392 INFO L264 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 17:27:02,404 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:27:02,482 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:27:02,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:27:02,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-11-28 17:27:02,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349180218] [2019-11-28 17:27:02,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 17:27:02,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:27:02,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 17:27:02,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 17:27:02,488 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. Second operand 8 states. [2019-11-28 17:27:02,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:27:02,805 INFO L93 Difference]: Finished difference Result 424 states and 586 transitions. [2019-11-28 17:27:02,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 17:27:02,806 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2019-11-28 17:27:02,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:27:02,809 INFO L225 Difference]: With dead ends: 424 [2019-11-28 17:27:02,809 INFO L226 Difference]: Without dead ends: 330 [2019-11-28 17:27:02,810 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2019-11-28 17:27:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-11-28 17:27:02,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 162. [2019-11-28 17:27:02,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-28 17:27:02,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 215 transitions. [2019-11-28 17:27:02,833 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 215 transitions. Word has length 48 [2019-11-28 17:27:02,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:27:02,833 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 215 transitions. [2019-11-28 17:27:02,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 17:27:02,834 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2019-11-28 17:27:02,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-28 17:27:02,840 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:27:02,840 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-28 17:27:03,047 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:27:03,048 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:27:03,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:27:03,048 INFO L82 PathProgramCache]: Analyzing trace with hash -2129580319, now seen corresponding path program 2 times [2019-11-28 17:27:03,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:27:03,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011780942] [2019-11-28 17:27:03,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:27:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:27:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 17:27:03,225 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 17:27:03,225 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 17:27:03,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:27:03 BoogieIcfgContainer [2019-11-28 17:27:03,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:27:03,398 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:27:03,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:27:03,399 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:27:03,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:26:59" (3/4) ... [2019-11-28 17:27:03,404 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 17:27:03,549 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:27:03,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:27:03,552 INFO L168 Benchmark]: Toolchain (without parser) took 5203.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 66.3 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,552 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:27:03,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.03 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,553 INFO L168 Benchmark]: Boogie Preprocessor took 42.09 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. [2019-11-28 17:27:03,554 INFO L168 Benchmark]: RCFGBuilder took 824.50 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: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,554 INFO L168 Benchmark]: TraceAbstraction took 3462.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -93.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:27:03,555 INFO L168 Benchmark]: Witness Printer took 151.06 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2019-11-28 17:27:03,558 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 639.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.03 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.09 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 824.50 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: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3462.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -93.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 151.06 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 211]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L385] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; [L822] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L198] int retValue_acc ; [L201] retValue_acc = 1 [L202] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L585] int splverifierCounter ; [L586] int tmp ; [L587] int tmp___0 ; [L588] int tmp___1 ; [L589] int tmp___2 ; [L592] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L594] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L596] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L602] tmp = __VERIFIER_nondet_int() [L604] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L659] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE \read(systemActive) [L688] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L691] COND TRUE ! pumpRunning [L803] int retValue_acc ; [L804] int tmp ; [L805] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L809] tmp = isHighWaterSensorDry() [L811] COND FALSE !(\read(tmp)) [L814] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] retValue_acc = tmp___0 [L817] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) [L722] int tmp ; [L747] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] retValue_acc = isMethaneLevelCritical() [L753] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp = isMethaneAlarm() [L728] COND FALSE !(\read(tmp)) [L716] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L144] int tmp ; [L145] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L594] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L596] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L659] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L666] COND TRUE \read(systemActive) [L688] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L691] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L144] int tmp ; [L145] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L149] tmp = getWaterLevel() [L151] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L594] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L602] tmp = __VERIFIER_nondet_int() [L604] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L612] tmp___0 = __VERIFIER_nondet_int() [L614] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L622] tmp___2 = __VERIFIER_nondet_int() [L624] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L659] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L666] COND TRUE \read(systemActive) [L688] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L691] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L144] int tmp ; [L145] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L149] tmp = getWaterLevel() [L151] COND TRUE tmp == 0 [L758] int retValue_acc ; [L761] retValue_acc = pumpRunning [L762] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L153] tmp___0 = isPumpRunning() [L155] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L211] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.2s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 598 SDtfs, 1073 SDslu, 1006 SDs, 0 SdLazy, 182 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=8, 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, 8 MinimizatonAttempts, 477 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 19899 SizeOfPredicates, 4 NumberOfNonLiveVariables, 391 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 50/56 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...