./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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_product17.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10f05e3ec3dc20c87bc900eaaa9b2990393e6df5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:43:55,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:55,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:55,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:55,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:55,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:55,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:55,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:55,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:55,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:55,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:55,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:56,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:56,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:56,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:56,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:56,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:56,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:56,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:56,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:56,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:56,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:56,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:56,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:56,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:56,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:56,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:56,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:56,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:56,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:56,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:56,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:56,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:56,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:56,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:56,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:56,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:56,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:56,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:56,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:56,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:56,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:56,097 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:56,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:56,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:56,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:56,099 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:56,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:56,100 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:56,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:56,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:56,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:56,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:56,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:56,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:56,101 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:56,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:56,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:56,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:56,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:56,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:56,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:56,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:56,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:56,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:56,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:56,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:56,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:56,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:56,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:56,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:56,105 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(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f05e3ec3dc20c87bc900eaaa9b2990393e6df5 [2020-10-20 01:43:56,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:56,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:56,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:56,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:56,314 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:56,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c [2020-10-20 01:43:56,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e46d5d33/f251d96e2e0949b8aa7d4552c96174b9/FLAG639b6dacc [2020-10-20 01:43:56,942 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:56,943 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c [2020-10-20 01:43:56,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e46d5d33/f251d96e2e0949b8aa7d4552c96174b9/FLAG639b6dacc [2020-10-20 01:43:57,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e46d5d33/f251d96e2e0949b8aa7d4552c96174b9 [2020-10-20 01:43:57,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:57,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:57,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:57,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:57,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:57,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad2c2eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57, skipping insertion in model container [2020-10-20 01:43:57,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:57,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:57,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:57,627 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:57,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:57,746 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:57,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57 WrapperNode [2020-10-20 01:43:57,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:57,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:57,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:57,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:57,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:57,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:57,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:57,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:57,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (1/1) ... [2020-10-20 01:43:57,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:57,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:57,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:57,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:57,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (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 [2020-10-20 01:43:57,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:58,663 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:58,664 INFO L298 CfgBuilder]: Removed 102 assume(true) statements. [2020-10-20 01:43:58,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:58 BoogieIcfgContainer [2020-10-20 01:43:58,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:58,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:58,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:58,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:58,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:57" (1/3) ... [2020-10-20 01:43:58,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74469d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:58, skipping insertion in model container [2020-10-20 01:43:58,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:57" (2/3) ... [2020-10-20 01:43:58,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74469d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:58, skipping insertion in model container [2020-10-20 01:43:58,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:58" (3/3) ... [2020-10-20 01:43:58,674 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product17.cil.c [2020-10-20 01:43:58,685 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:58,701 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:58,712 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:58,735 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:58,735 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:58,735 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:58,736 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:58,737 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:58,737 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:58,737 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:58,738 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:58,755 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-10-20 01:43:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:43:58,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:58,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:58,763 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:58,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:58,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1009828906, now seen corresponding path program 1 times [2020-10-20 01:43:58,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:58,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141429306] [2020-10-20 01:43:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:59,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:59,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141429306] [2020-10-20 01:43:59,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:59,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:59,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267653504] [2020-10-20 01:43:59,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:59,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:59,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:59,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:59,044 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-10-20 01:43:59,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:59,072 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2020-10-20 01:43:59,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:59,073 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:43:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:59,085 INFO L225 Difference]: With dead ends: 147 [2020-10-20 01:43:59,085 INFO L226 Difference]: Without dead ends: 71 [2020-10-20 01:43:59,088 INFO L677 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 [2020-10-20 01:43:59,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-20 01:43:59,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-20 01:43:59,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-20 01:43:59,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-10-20 01:43:59,142 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 16 [2020-10-20 01:43:59,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:59,142 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-10-20 01:43:59,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:59,143 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-10-20 01:43:59,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:43:59,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:59,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:59,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:59,145 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:59,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:59,145 INFO L82 PathProgramCache]: Analyzing trace with hash -36927991, now seen corresponding path program 1 times [2020-10-20 01:43:59,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:59,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209505385] [2020-10-20 01:43:59,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:59,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:59,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209505385] [2020-10-20 01:43:59,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:59,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:59,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527937810] [2020-10-20 01:43:59,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:59,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:59,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:59,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:59,287 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2020-10-20 01:43:59,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:59,298 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-10-20 01:43:59,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:59,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:43:59,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:59,300 INFO L225 Difference]: With dead ends: 71 [2020-10-20 01:43:59,300 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 01:43:59,301 INFO L677 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 [2020-10-20 01:43:59,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 01:43:59,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 01:43:59,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 01:43:59,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-10-20 01:43:59,306 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 17 [2020-10-20 01:43:59,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:59,307 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-10-20 01:43:59,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:59,307 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-10-20 01:43:59,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:43:59,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:59,309 INFO L422 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] [2020-10-20 01:43:59,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:59,309 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:59,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:59,310 INFO L82 PathProgramCache]: Analyzing trace with hash 379655789, now seen corresponding path program 1 times [2020-10-20 01:43:59,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:59,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196360803] [2020-10-20 01:43:59,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:59,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196360803] [2020-10-20 01:43:59,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:59,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:59,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763943641] [2020-10-20 01:43:59,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:43:59,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:59,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:43:59,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:43:59,412 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 6 states. [2020-10-20 01:43:59,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:59,617 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-10-20 01:43:59,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:43:59,617 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-20 01:43:59,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:59,619 INFO L225 Difference]: With dead ends: 60 [2020-10-20 01:43:59,619 INFO L226 Difference]: Without dead ends: 33 [2020-10-20 01:43:59,620 INFO L677 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 [2020-10-20 01:43:59,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-20 01:43:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-20 01:43:59,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-20 01:43:59,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-10-20 01:43:59,633 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 22 [2020-10-20 01:43:59,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:59,634 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-10-20 01:43:59,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:43:59,634 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-10-20 01:43:59,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:43:59,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:59,636 INFO L422 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] [2020-10-20 01:43:59,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:59,637 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:59,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:59,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2095114328, now seen corresponding path program 1 times [2020-10-20 01:43:59,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:59,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456752087] [2020-10-20 01:43:59,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:59,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456752087] [2020-10-20 01:43:59,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:59,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:43:59,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548161139] [2020-10-20 01:43:59,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:43:59,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:59,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:43:59,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:59,800 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 8 states. [2020-10-20 01:44:00,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:00,253 INFO L93 Difference]: Finished difference Result 196 states and 293 transitions. [2020-10-20 01:44:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:44:00,254 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-20 01:44:00,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:00,258 INFO L225 Difference]: With dead ends: 196 [2020-10-20 01:44:00,259 INFO L226 Difference]: Without dead ends: 169 [2020-10-20 01:44:00,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-20 01:44:00,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-20 01:44:00,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 78. [2020-10-20 01:44:00,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-20 01:44:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2020-10-20 01:44:00,293 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 23 [2020-10-20 01:44:00,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:00,294 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2020-10-20 01:44:00,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:44:00,294 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2020-10-20 01:44:00,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:44:00,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:00,297 INFO L422 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] [2020-10-20 01:44:00,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:00,297 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:00,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:00,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1283837447, now seen corresponding path program 1 times [2020-10-20 01:44:00,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:00,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98709140] [2020-10-20 01:44:00,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:00,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98709140] [2020-10-20 01:44:00,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:00,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:00,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210550460] [2020-10-20 01:44:00,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:00,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:00,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:00,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:00,377 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand 3 states. [2020-10-20 01:44:00,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:00,409 INFO L93 Difference]: Finished difference Result 132 states and 186 transitions. [2020-10-20 01:44:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:00,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:44:00,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:00,412 INFO L225 Difference]: With dead ends: 132 [2020-10-20 01:44:00,412 INFO L226 Difference]: Without dead ends: 60 [2020-10-20 01:44:00,413 INFO L677 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 [2020-10-20 01:44:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-20 01:44:00,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-20 01:44:00,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:44:00,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2020-10-20 01:44:00,427 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 24 [2020-10-20 01:44:00,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:00,428 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 77 transitions. [2020-10-20 01:44:00,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:00,428 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2020-10-20 01:44:00,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-20 01:44:00,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:00,432 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:00,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:00,432 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:00,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:00,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1611517957, now seen corresponding path program 1 times [2020-10-20 01:44:00,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:00,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359425750] [2020-10-20 01:44:00,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:00,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359425750] [2020-10-20 01:44:00,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603707753] [2020-10-20 01:44:00,540 INFO L95 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 [2020-10-20 01:44:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:00,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 01:44:00,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:00,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:44:00,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-20 01:44:00,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908274617] [2020-10-20 01:44:00,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:00,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:00,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:00,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:00,738 INFO L87 Difference]: Start difference. First operand 60 states and 77 transitions. Second operand 4 states. [2020-10-20 01:44:00,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:00,859 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2020-10-20 01:44:00,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:00,860 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-20 01:44:00,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:00,860 INFO L225 Difference]: With dead ends: 77 [2020-10-20 01:44:00,860 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:44:00,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:00,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:44:00,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:44:00,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:44:00,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:44:00,862 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-10-20 01:44:00,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:00,862 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:44:00,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:00,863 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:44:00,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:44:01,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-20 01:44:01,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:44:01,663 INFO L274 CegarLoopResult]: For program point L448(lines 448 452) no Hoare annotation was computed. [2020-10-20 01:44:01,664 INFO L270 CegarLoopResult]: At program point L382(lines 377 385) the Hoare annotation is: false [2020-10-20 01:44:01,664 INFO L274 CegarLoopResult]: For program point L448-3(lines 448 452) no Hoare annotation was computed. [2020-10-20 01:44:01,664 INFO L270 CegarLoopResult]: At program point L382-1(lines 377 385) the Hoare annotation is: false [2020-10-20 01:44:01,664 INFO L270 CegarLoopResult]: At program point L382-2(lines 377 385) the Hoare annotation is: false [2020-10-20 01:44:01,664 INFO L274 CegarLoopResult]: For program point L448-6(lines 448 452) no Hoare annotation was computed. [2020-10-20 01:44:01,664 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:01,664 INFO L274 CegarLoopResult]: For program point L333(lines 333 341) no Hoare annotation was computed. [2020-10-20 01:44:01,665 INFO L274 CegarLoopResult]: For program point L333-1(lines 333 341) no Hoare annotation was computed. [2020-10-20 01:44:01,665 INFO L274 CegarLoopResult]: For program point L333-2(lines 333 341) no Hoare annotation was computed. [2020-10-20 01:44:01,665 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:44:01,667 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:44:01,667 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:44:01,667 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:44:01,667 INFO L274 CegarLoopResult]: For program point L53(lines 53 66) no Hoare annotation was computed. [2020-10-20 01:44:01,667 INFO L270 CegarLoopResult]: At program point L53-1(lines 1 895) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 0))))) [2020-10-20 01:44:01,668 INFO L274 CegarLoopResult]: For program point L53-2(lines 53 66) no Hoare annotation was computed. [2020-10-20 01:44:01,668 INFO L270 CegarLoopResult]: At program point L53-3(lines 1 895) the Hoare annotation is: false [2020-10-20 01:44:01,668 INFO L274 CegarLoopResult]: For program point L53-4(lines 53 66) no Hoare annotation was computed. [2020-10-20 01:44:01,669 INFO L270 CegarLoopResult]: At program point L53-5(lines 1 895) the Hoare annotation is: false [2020-10-20 01:44:01,669 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-10-20 01:44:01,669 INFO L274 CegarLoopResult]: For program point L87-1(lines 297 303) no Hoare annotation was computed. [2020-10-20 01:44:01,669 INFO L277 CegarLoopResult]: At program point L170(lines 151 173) the Hoare annotation is: true [2020-10-20 01:44:01,670 INFO L270 CegarLoopResult]: At program point L517(lines 512 520) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse3 .cse4) (and .cse0 (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4))) [2020-10-20 01:44:01,670 INFO L270 CegarLoopResult]: At program point L517-1(lines 512 520) the Hoare annotation is: false [2020-10-20 01:44:01,670 INFO L270 CegarLoopResult]: At program point L517-2(lines 512 520) the Hoare annotation is: false [2020-10-20 01:44:01,671 INFO L270 CegarLoopResult]: At program point L304(lines 304 310) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2020-10-20 01:44:01,671 INFO L270 CegarLoopResult]: At program point L304-1(lines 304 310) the Hoare annotation is: false [2020-10-20 01:44:01,671 INFO L270 CegarLoopResult]: At program point L304-2(lines 304 310) the Hoare annotation is: false [2020-10-20 01:44:01,672 INFO L274 CegarLoopResult]: For program point L57(lines 57 63) no Hoare annotation was computed. [2020-10-20 01:44:01,672 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 63) no Hoare annotation was computed. [2020-10-20 01:44:01,672 INFO L270 CegarLoopResult]: At program point L437(lines 422 440) the Hoare annotation is: false [2020-10-20 01:44:01,672 INFO L274 CegarLoopResult]: For program point L57-4(lines 57 63) no Hoare annotation was computed. [2020-10-20 01:44:01,673 INFO L270 CegarLoopResult]: At program point L437-1(lines 422 440) the Hoare annotation is: false [2020-10-20 01:44:01,673 INFO L270 CegarLoopResult]: At program point L437-2(lines 422 440) the Hoare annotation is: false [2020-10-20 01:44:01,673 INFO L274 CegarLoopResult]: For program point L239(lines 239 245) no Hoare annotation was computed. [2020-10-20 01:44:01,673 INFO L270 CegarLoopResult]: At program point L206(lines 1 895) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:01,674 INFO L270 CegarLoopResult]: At program point L239-1(lines 239 245) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2020-10-20 01:44:01,674 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:44:01,674 INFO L274 CegarLoopResult]: For program point L472(lines 472 476) no Hoare annotation was computed. [2020-10-20 01:44:01,674 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:01,675 INFO L270 CegarLoopResult]: At program point L275(lines 228 276) the Hoare annotation is: false [2020-10-20 01:44:01,675 INFO L274 CegarLoopResult]: For program point L259(lines 259 270) no Hoare annotation was computed. [2020-10-20 01:44:01,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:44:01,675 INFO L274 CegarLoopResult]: For program point L161(lines 161 168) no Hoare annotation was computed. [2020-10-20 01:44:01,676 INFO L277 CegarLoopResult]: At program point L161-1(lines 161 168) the Hoare annotation is: true [2020-10-20 01:44:01,676 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-20 01:44:01,676 INFO L274 CegarLoopResult]: For program point L179-1(line 179) no Hoare annotation was computed. [2020-10-20 01:44:01,676 INFO L274 CegarLoopResult]: For program point L179-2(line 179) no Hoare annotation was computed. [2020-10-20 01:44:01,676 INFO L270 CegarLoopResult]: At program point L526(lines 521 529) the Hoare annotation is: false [2020-10-20 01:44:01,677 INFO L270 CegarLoopResult]: At program point L526-1(lines 521 529) the Hoare annotation is: false [2020-10-20 01:44:01,677 INFO L274 CegarLoopResult]: For program point L460(lines 460 464) no Hoare annotation was computed. [2020-10-20 01:44:01,677 INFO L270 CegarLoopResult]: At program point L526-2(lines 521 529) the Hoare annotation is: false [2020-10-20 01:44:01,677 INFO L274 CegarLoopResult]: For program point L329(lines 329 346) no Hoare annotation was computed. [2020-10-20 01:44:01,677 INFO L274 CegarLoopResult]: For program point L329-1(lines 329 346) no Hoare annotation was computed. [2020-10-20 01:44:01,678 INFO L274 CegarLoopResult]: For program point L329-2(lines 329 346) no Hoare annotation was computed. [2020-10-20 01:44:01,678 INFO L274 CegarLoopResult]: For program point L230(lines 229 274) no Hoare annotation was computed. [2020-10-20 01:44:01,678 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:44:01,678 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:01,679 INFO L270 CegarLoopResult]: At program point L214(lines 209 217) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:01,679 INFO L270 CegarLoopResult]: At program point L297(lines 296 315) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2020-10-20 01:44:01,679 INFO L274 CegarLoopResult]: For program point L297-1(lines 297 303) no Hoare annotation was computed. [2020-10-20 01:44:01,680 INFO L274 CegarLoopResult]: For program point L231(lines 231 235) no Hoare annotation was computed. [2020-10-20 01:44:01,680 INFO L270 CegarLoopResult]: At program point L297-2(lines 296 315) the Hoare annotation is: false [2020-10-20 01:44:01,680 INFO L270 CegarLoopResult]: At program point L297-3(lines 296 315) the Hoare annotation is: false [2020-10-20 01:44:01,682 INFO L270 CegarLoopResult]: At program point L83-2(lines 83 97) the Hoare annotation is: false [2020-10-20 01:44:01,682 INFO L274 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2020-10-20 01:44:01,683 INFO L274 CegarLoopResult]: For program point L265-2(lines 297 303) no Hoare annotation was computed. [2020-10-20 01:44:01,683 INFO L274 CegarLoopResult]: For program point L249(lines 249 255) no Hoare annotation was computed. [2020-10-20 01:44:01,684 INFO L270 CegarLoopResult]: At program point L249-1(lines 249 255) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) .cse2 .cse3) (and (= ULTIMATE.start_main_~tmp~1 ~systemActive~0) .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2020-10-20 01:44:01,685 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-20 01:44:01,686 INFO L274 CegarLoopResult]: For program point L431(lines 431 435) no Hoare annotation was computed. [2020-10-20 01:44:01,686 INFO L274 CegarLoopResult]: For program point L431-2(lines 431 435) no Hoare annotation was computed. [2020-10-20 01:44:01,686 INFO L274 CegarLoopResult]: For program point L431-3(lines 431 435) no Hoare annotation was computed. [2020-10-20 01:44:01,687 INFO L274 CegarLoopResult]: For program point L431-5(lines 431 435) no Hoare annotation was computed. [2020-10-20 01:44:01,687 INFO L274 CegarLoopResult]: For program point L431-6(lines 431 435) no Hoare annotation was computed. [2020-10-20 01:44:01,687 INFO L274 CegarLoopResult]: For program point L431-8(lines 431 435) no Hoare annotation was computed. [2020-10-20 01:44:01,687 INFO L270 CegarLoopResult]: At program point L134(lines 130 136) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ULTIMATE.start_main_~tmp~1 ~waterLevel~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:01,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:01 BoogieIcfgContainer [2020-10-20 01:44:01,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:01,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:01,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:01,738 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:01,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:58" (3/4) ... [2020-10-20 01:44:01,747 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:44:01,772 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:44:01,773 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:44:01,774 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:44:01,774 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:44:01,775 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:44:01,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:01,777 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:01,818 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 [2020-10-20 01:44:01,818 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0 [2020-10-20 01:44:01,818 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((((!(\result == 0) && tmp == systemActive) && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) [2020-10-20 01:44:01,819 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:44:01,820 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:44:01,821 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:44:01,822 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:44:01,824 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\result == 0) && \result == systemActive) && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && tmp == systemActive) && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:44:01,924 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:01,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:01,926 INFO L168 Benchmark]: Toolchain (without parser) took 4787.25 ms. Allocated memory was 43.0 MB in the beginning and 64.0 MB in the end (delta: 21.0 MB). Free memory was 24.0 MB in the beginning and 10.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:01,927 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 33.0 MB. Free memory was 11.8 MB in the beginning and 11.8 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:01,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.06 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 23.1 MB in the beginning and 13.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:01,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.80 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 13.3 MB in the beginning and 27.6 MB in the end (delta: -14.3 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:01,928 INFO L168 Benchmark]: Boogie Preprocessor took 35.49 ms. Allocated memory is still 44.6 MB. Free memory was 27.6 MB in the beginning and 25.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:01,929 INFO L168 Benchmark]: RCFGBuilder took 800.70 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 25.2 MB in the beginning and 12.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:01,929 INFO L168 Benchmark]: TraceAbstraction took 3069.85 ms. Allocated memory was 47.7 MB in the beginning and 64.0 MB in the end (delta: 16.3 MB). Free memory was 11.9 MB in the beginning and 19.1 MB in the end (delta: -7.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:01,930 INFO L168 Benchmark]: Witness Printer took 187.27 ms. Allocated memory is still 64.0 MB. Free memory was 19.1 MB in the beginning and 10.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:01,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 33.0 MB. Free memory was 11.8 MB in the beginning and 11.8 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 602.06 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 23.1 MB in the beginning and 13.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 81.80 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 13.3 MB in the beginning and 27.6 MB in the end (delta: -14.3 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 35.49 ms. Allocated memory is still 44.6 MB. Free memory was 27.6 MB in the beginning and 25.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 800.70 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 25.2 MB in the beginning and 12.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3069.85 ms. Allocated memory was 47.7 MB in the beginning and 64.0 MB in the end (delta: 16.3 MB). Free memory was 11.9 MB in the beginning and 19.1 MB in the end (delta: -7.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 14.3 GB. * Witness Printer took 187.27 ms. Allocated memory is still 64.0 MB. Free memory was 19.1 MB in the beginning and 10.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((((!(\result == 0) && tmp == systemActive) && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: ((((((!(\result == 0) && \result == systemActive) && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && tmp == systemActive) && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: (((((\result == systemActive && \result == waterLevel) && 1 == systemActive) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == systemActive && \result == systemActive) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 329 SDtfs, 536 SDslu, 362 SDs, 0 SdLazy, 102 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 91 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 30 PreInvPairs, 44 NumberOfFragments, 310 HoareAnnotationTreeSize, 30 FomulaSimplifications, 352 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 30 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 11358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 25/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...