./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product12.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_spec3_product12.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 cf530681c562daa6fa9ab5223cf4d9c859dac38d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-9a8b2e8 [2020-10-20 01:43:02,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:02,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:02,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:02,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:02,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:02,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:02,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:02,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:02,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:02,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:02,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:02,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:02,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:02,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:02,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:02,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:02,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:02,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:02,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:02,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:02,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:02,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:02,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:02,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:02,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:02,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:02,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:02,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:02,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:02,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:02,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:02,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:02,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:02,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:02,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:02,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:02,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:02,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:02,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:02,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:02,983 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:03,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:03,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:03,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:03,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:03,016 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:03,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:03,016 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:03,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:03,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:03,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:03,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:03,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:03,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:03,018 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:03,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:03,018 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:03,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:03,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:03,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:03,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:03,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:03,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:03,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:03,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:03,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:03,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:03,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:03,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:03,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:03,022 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 -> cf530681c562daa6fa9ab5223cf4d9c859dac38d [2020-10-20 01:43:03,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:03,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:03,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:03,242 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:03,242 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:03,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-10-20 01:43:03,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e19cf796/3697ac118cbb4df5aee05fa220070910/FLAGfa897a30d [2020-10-20 01:43:03,725 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:03,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2020-10-20 01:43:03,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e19cf796/3697ac118cbb4df5aee05fa220070910/FLAGfa897a30d [2020-10-20 01:43:04,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e19cf796/3697ac118cbb4df5aee05fa220070910 [2020-10-20 01:43:04,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:04,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:04,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:04,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:04,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:04,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6b86ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04, skipping insertion in model container [2020-10-20 01:43:04,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:04,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:04,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:04,610 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:04,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:04,721 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:04,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04 WrapperNode [2020-10-20 01:43:04,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:04,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:04,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:04,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:04,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:04,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:04,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:04,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:04,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (1/1) ... [2020-10-20 01:43:04,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:04,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:04,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:04,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:04,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (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 01:43:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:05,842 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:05,843 INFO L298 CfgBuilder]: Removed 84 assume(true) statements. [2020-10-20 01:43:05,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:05 BoogieIcfgContainer [2020-10-20 01:43:05,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:05,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:05,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:05,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:05,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:04" (1/3) ... [2020-10-20 01:43:05,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4ca81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:05, skipping insertion in model container [2020-10-20 01:43:05,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:04" (2/3) ... [2020-10-20 01:43:05,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4ca81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:05, skipping insertion in model container [2020-10-20 01:43:05,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:05" (3/3) ... [2020-10-20 01:43:05,854 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-10-20 01:43:05,866 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:05,874 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:05,889 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:05,917 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:05,917 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:05,918 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:05,918 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:05,918 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:05,918 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:05,919 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:05,919 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-10-20 01:43:05,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:05,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:05,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:05,949 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:05,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:05,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1960119750, now seen corresponding path program 1 times [2020-10-20 01:43:05,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:05,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748972364] [2020-10-20 01:43:05,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:06,254 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 01:43:06,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748972364] [2020-10-20 01:43:06,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:06,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:06,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183618616] [2020-10-20 01:43:06,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:06,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:06,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:06,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:06,280 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2020-10-20 01:43:06,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:06,315 INFO L93 Difference]: Finished difference Result 127 states and 188 transitions. [2020-10-20 01:43:06,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:06,316 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:06,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:06,328 INFO L225 Difference]: With dead ends: 127 [2020-10-20 01:43:06,328 INFO L226 Difference]: Without dead ends: 61 [2020-10-20 01:43:06,332 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 01:43:06,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-20 01:43:06,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-20 01:43:06,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-20 01:43:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2020-10-20 01:43:06,375 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2020-10-20 01:43:06,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:06,375 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2020-10-20 01:43:06,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:06,376 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2020-10-20 01:43:06,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:06,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:06,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:06,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:06,378 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:06,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:06,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1049088997, now seen corresponding path program 1 times [2020-10-20 01:43:06,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:06,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876833587] [2020-10-20 01:43:06,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:06,507 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 01:43:06,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876833587] [2020-10-20 01:43:06,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:06,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:06,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201004528] [2020-10-20 01:43:06,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:06,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:06,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:06,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:06,513 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 3 states. [2020-10-20 01:43:06,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:06,526 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2020-10-20 01:43:06,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:06,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:06,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:06,528 INFO L225 Difference]: With dead ends: 61 [2020-10-20 01:43:06,528 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 01:43:06,529 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 01:43:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 01:43:06,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-20 01:43:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 01:43:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2020-10-20 01:43:06,535 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2020-10-20 01:43:06,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:06,536 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2020-10-20 01:43:06,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:06,536 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-10-20 01:43:06,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:06,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:06,538 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 01:43:06,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:06,538 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:06,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:06,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810197, now seen corresponding path program 1 times [2020-10-20 01:43:06,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:06,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75220796] [2020-10-20 01:43:06,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:06,638 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 01:43:06,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75220796] [2020-10-20 01:43:06,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:06,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:06,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747226808] [2020-10-20 01:43:06,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:06,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:06,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:06,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:06,641 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 5 states. [2020-10-20 01:43:06,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:06,732 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2020-10-20 01:43:06,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:43:06,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-20 01:43:06,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:06,734 INFO L225 Difference]: With dead ends: 81 [2020-10-20 01:43:06,735 INFO L226 Difference]: Without dead ends: 56 [2020-10-20 01:43:06,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:06,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-20 01:43:06,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2020-10-20 01:43:06,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 01:43:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2020-10-20 01:43:06,762 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2020-10-20 01:43:06,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:06,762 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2020-10-20 01:43:06,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:06,763 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2020-10-20 01:43:06,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:06,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:06,766 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 01:43:06,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:06,766 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:06,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:06,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1755761006, now seen corresponding path program 1 times [2020-10-20 01:43:06,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:06,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671194049] [2020-10-20 01:43:06,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:06,852 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 01:43:06,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671194049] [2020-10-20 01:43:06,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:06,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:06,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766185569] [2020-10-20 01:43:06,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:06,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:06,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:06,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:06,855 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 5 states. [2020-10-20 01:43:06,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:06,955 INFO L93 Difference]: Finished difference Result 264 states and 404 transitions. [2020-10-20 01:43:06,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:06,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-20 01:43:06,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:06,958 INFO L225 Difference]: With dead ends: 264 [2020-10-20 01:43:06,958 INFO L226 Difference]: Without dead ends: 218 [2020-10-20 01:43:06,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:06,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-20 01:43:06,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 92. [2020-10-20 01:43:06,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-20 01:43:06,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2020-10-20 01:43:06,989 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 24 [2020-10-20 01:43:06,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:06,990 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2020-10-20 01:43:06,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2020-10-20 01:43:06,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:43:06,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:06,991 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, 1] [2020-10-20 01:43:06,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:06,991 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:06,992 INFO L82 PathProgramCache]: Analyzing trace with hash 120698128, now seen corresponding path program 1 times [2020-10-20 01:43:06,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:06,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077428717] [2020-10-20 01:43:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:07,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:07,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:07,188 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:07,188 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:07,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:07,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:07 BoogieIcfgContainer [2020-10-20 01:43:07,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:07,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:07,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:07,319 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:07,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:05" (3/4) ... [2020-10-20 01:43:07,322 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:07,412 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:07,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:07,415 INFO L168 Benchmark]: Toolchain (without parser) took 3337.08 ms. Allocated memory was 37.2 MB in the beginning and 58.2 MB in the end (delta: 21.0 MB). Free memory was 11.7 MB in the beginning and 20.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:07,417 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 36.7 MB. Free memory is still 16.1 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 01:43:07,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.36 ms. Allocated memory was 37.2 MB in the beginning and 45.6 MB in the end (delta: 8.4 MB). Free memory was 10.9 MB in the beginning and 17.7 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:07,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.53 ms. Allocated memory was 45.6 MB in the beginning and 47.2 MB in the end (delta: 1.6 MB). Free memory was 17.7 MB in the beginning and 29.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:07,426 INFO L168 Benchmark]: Boogie Preprocessor took 80.89 ms. Allocated memory is still 47.2 MB. Free memory was 29.0 MB in the beginning and 26.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:07,427 INFO L168 Benchmark]: RCFGBuilder took 950.89 ms. Allocated memory was 47.2 MB in the beginning and 49.8 MB in the end (delta: 2.6 MB). Free memory was 26.9 MB in the beginning and 18.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:07,428 INFO L168 Benchmark]: TraceAbstraction took 1472.13 ms. Allocated memory was 49.8 MB in the beginning and 58.2 MB in the end (delta: 8.4 MB). Free memory was 17.9 MB in the beginning and 32.7 MB in the end (delta: -14.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:07,429 INFO L168 Benchmark]: Witness Printer took 94.13 ms. Allocated memory is still 58.2 MB. Free memory was 32.7 MB in the beginning and 20.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:07,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 36.7 MB. Free memory is still 16.1 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 639.36 ms. Allocated memory was 37.2 MB in the beginning and 45.6 MB in the end (delta: 8.4 MB). Free memory was 10.9 MB in the beginning and 17.7 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 86.53 ms. Allocated memory was 45.6 MB in the beginning and 47.2 MB in the end (delta: 1.6 MB). Free memory was 17.7 MB in the beginning and 29.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 80.89 ms. Allocated memory is still 47.2 MB. Free memory was 29.0 MB in the beginning and 26.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 950.89 ms. Allocated memory was 47.2 MB in the beginning and 49.8 MB in the end (delta: 2.6 MB). Free memory was 26.9 MB in the beginning and 18.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1472.13 ms. Allocated memory was 49.8 MB in the beginning and 58.2 MB in the end (delta: 8.4 MB). Free memory was 17.9 MB in the beginning and 32.7 MB in the end (delta: -14.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 14.3 GB. * Witness Printer took 94.13 ms. Allocated memory is still 58.2 MB. Free memory was 32.7 MB in the beginning and 20.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L308] int waterLevel = 1; [L309] int methaneLevelCritical = 0; [L595] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L792] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L865] int retValue_acc ; [L866] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] int retValue_acc ; [L420] retValue_acc = 1 [L421] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L872] tmp = valid_product() [L874] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L87] int splverifierCounter ; [L88] int tmp ; [L89] int tmp___0 ; [L90] int tmp___1 ; [L91] int tmp___2 ; [L94] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L96] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L98] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] tmp = __VERIFIER_nondet_int() [L106] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L326] COND TRUE waterLevel < 2 [L327] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] tmp___0 = __VERIFIER_nondet_int() [L116] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L124] tmp___2 = __VERIFIER_nondet_int() [L126] COND TRUE \read(tmp___2) [L303] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L347] int retValue_acc ; [L350] retValue_acc = methaneLevelCritical [L351] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L379] int retValue_acc ; [L382] retValue_acc = waterLevel [L383] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L240] int retValue_acc ; [L243] retValue_acc = pumpRunning [L244] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product12.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 68 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 236 SDtfs, 382 SDslu, 200 SDs, 0 SdLazy, 41 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, 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, 4 MinimizatonAttempts, 130 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 2893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...