./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 024cd1c3d04a85b1ea51a85b80d9a485019f42aa ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 00:21:36,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:21:36,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:21:36,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:21:36,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:21:36,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:21:36,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:21:36,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:21:36,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:21:36,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:21:36,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:21:36,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:21:36,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:21:36,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:21:36,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:21:36,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:21:36,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:21:36,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:21:36,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:21:36,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:21:36,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:21:36,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:21:36,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:21:36,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:21:36,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:21:36,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:21:36,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:21:36,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:21:36,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:21:36,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:21:36,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:21:36,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:21:36,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:21:36,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:21:36,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:21:36,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:21:36,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:21:36,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:21:36,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:21:36,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:21:36,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:21:36,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:21:36,989 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:21:36,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:21:36,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:21:36,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:21:36,991 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:21:36,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:21:36,992 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:21:36,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:21:36,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:21:36,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:21:36,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:21:36,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:21:36,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:21:36,994 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:21:36,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:21:36,994 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:21:36,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:21:36,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:21:36,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:21:36,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:21:36,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:21:36,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:21:36,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:21:36,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:21:36,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:21:36,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:21:36,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:21:36,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:21:36,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 024cd1c3d04a85b1ea51a85b80d9a485019f42aa [2019-11-28 00:21:37,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:21:37,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:21:37,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:21:37,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:21:37,321 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:21:37,322 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2019-11-28 00:21:37,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2baa5374/1600128ab2d34082ba19f6a947841d04/FLAG110fdf280 [2019-11-28 00:21:37,864 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:21:37,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2019-11-28 00:21:37,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2baa5374/1600128ab2d34082ba19f6a947841d04/FLAG110fdf280 [2019-11-28 00:21:38,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2baa5374/1600128ab2d34082ba19f6a947841d04 [2019-11-28 00:21:38,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:21:38,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:21:38,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:21:38,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:21:38,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:21:38,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245d122c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38, skipping insertion in model container [2019-11-28 00:21:38,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:21:38,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:21:38,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:21:38,702 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:21:38,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:21:38,805 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:21:38,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38 WrapperNode [2019-11-28 00:21:38,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:21:38,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:21:38,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:21:38,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:21:38,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:21:38,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:21:38,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:21:38,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:21:38,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... [2019-11-28 00:21:38,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:21:38,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:21:38,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:21:38,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:21:38,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:21:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 00:21:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 00:21:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:21:38,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:21:39,687 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:21:39,687 INFO L297 CfgBuilder]: Removed 76 assume(true) statements. [2019-11-28 00:21:39,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:39 BoogieIcfgContainer [2019-11-28 00:21:39,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:21:39,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:21:39,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:21:39,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:21:39,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:21:38" (1/3) ... [2019-11-28 00:21:39,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449f7084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:39, skipping insertion in model container [2019-11-28 00:21:39,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:38" (2/3) ... [2019-11-28 00:21:39,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449f7084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:39, skipping insertion in model container [2019-11-28 00:21:39,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:39" (3/3) ... [2019-11-28 00:21:39,702 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2019-11-28 00:21:39,711 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:21:39,718 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 00:21:39,732 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 00:21:39,762 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:21:39,763 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:21:39,763 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:21:39,763 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:21:39,764 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:21:39,765 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:21:39,765 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:21:39,766 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:21:39,784 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-11-28 00:21:39,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 00:21:39,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:39,793 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:39,794 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:39,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:39,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1892552075, now seen corresponding path program 1 times [2019-11-28 00:21:39,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:39,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176987139] [2019-11-28 00:21:39,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:40,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:21:40,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176987139] [2019-11-28 00:21:40,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:40,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:21:40,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113485771] [2019-11-28 00:21:40,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 00:21:40,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:40,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 00:21:40,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:21:40,055 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2019-11-28 00:21:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:40,083 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2019-11-28 00:21:40,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 00:21:40,085 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-28 00:21:40,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:40,096 INFO L225 Difference]: With dead ends: 124 [2019-11-28 00:21:40,097 INFO L226 Difference]: Without dead ends: 61 [2019-11-28 00:21:40,100 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:21:40,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-11-28 00:21:40,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-11-28 00:21:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-11-28 00:21:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2019-11-28 00:21:40,141 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2019-11-28 00:21:40,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:40,142 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2019-11-28 00:21:40,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 00:21:40,142 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2019-11-28 00:21:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 00:21:40,143 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:40,144 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:40,144 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:40,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:40,144 INFO L82 PathProgramCache]: Analyzing trace with hash 177187266, now seen corresponding path program 1 times [2019-11-28 00:21:40,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:40,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832086982] [2019-11-28 00:21:40,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:21:40,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832086982] [2019-11-28 00:21:40,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:40,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 00:21:40,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641370634] [2019-11-28 00:21:40,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:21:40,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:40,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:21:40,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:21:40,276 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 3 states. [2019-11-28 00:21:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:40,289 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2019-11-28 00:21:40,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:21:40,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 00:21:40,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:40,292 INFO L225 Difference]: With dead ends: 61 [2019-11-28 00:21:40,292 INFO L226 Difference]: Without dead ends: 31 [2019-11-28 00:21:40,293 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:21:40,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-28 00:21:40,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-28 00:21:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-28 00:21:40,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2019-11-28 00:21:40,299 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2019-11-28 00:21:40,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:40,299 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2019-11-28 00:21:40,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:21:40,299 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2019-11-28 00:21:40,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 00:21:40,300 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:40,301 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:40,301 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:40,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:40,301 INFO L82 PathProgramCache]: Analyzing trace with hash 755880693, now seen corresponding path program 1 times [2019-11-28 00:21:40,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:40,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436798882] [2019-11-28 00:21:40,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:21:40,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436798882] [2019-11-28 00:21:40,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:40,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:21:40,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834059957] [2019-11-28 00:21:40,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:21:40,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:40,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:21:40,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:21:40,440 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 3 states. [2019-11-28 00:21:40,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:40,467 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2019-11-28 00:21:40,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:21:40,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-28 00:21:40,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:40,471 INFO L225 Difference]: With dead ends: 81 [2019-11-28 00:21:40,471 INFO L226 Difference]: Without dead ends: 56 [2019-11-28 00:21:40,472 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:21:40,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-28 00:21:40,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2019-11-28 00:21:40,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-28 00:21:40,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2019-11-28 00:21:40,491 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2019-11-28 00:21:40,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:40,492 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2019-11-28 00:21:40,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:21:40,492 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2019-11-28 00:21:40,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 00:21:40,496 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:40,496 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:40,497 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:40,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:40,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1883276786, now seen corresponding path program 1 times [2019-11-28 00:21:40,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:40,498 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130486265] [2019-11-28 00:21:40,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:21:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:21:40,627 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130486265] [2019-11-28 00:21:40,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:21:40,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 00:21:40,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623630274] [2019-11-28 00:21:40,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:21:40,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:21:40,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:21:40,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:21:40,629 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 5 states. [2019-11-28 00:21:40,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:21:40,769 INFO L93 Difference]: Finished difference Result 264 states and 404 transitions. [2019-11-28 00:21:40,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 00:21:40,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-28 00:21:40,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:21:40,772 INFO L225 Difference]: With dead ends: 264 [2019-11-28 00:21:40,773 INFO L226 Difference]: Without dead ends: 218 [2019-11-28 00:21:40,774 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 00:21:40,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-11-28 00:21:40,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 92. [2019-11-28 00:21:40,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-28 00:21:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2019-11-28 00:21:40,792 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 24 [2019-11-28 00:21:40,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:21:40,792 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2019-11-28 00:21:40,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:21:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2019-11-28 00:21:40,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-28 00:21:40,794 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:21:40,794 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:21:40,794 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:21:40,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:21:40,795 INFO L82 PathProgramCache]: Analyzing trace with hash -535231376, now seen corresponding path program 1 times [2019-11-28 00:21:40,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:21:40,795 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921979917] [2019-11-28 00:21:40,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:21:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:21:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:21:40,985 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 00:21:40,985 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 00:21:41,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:21:41 BoogieIcfgContainer [2019-11-28 00:21:41,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:21:41,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:21:41,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:21:41,115 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:21:41,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:39" (3/4) ... [2019-11-28 00:21:41,117 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 00:21:41,264 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:21:41,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:21:41,267 INFO L168 Benchmark]: Toolchain (without parser) took 3068.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.7 MB in the beginning and 958.2 MB in the end (delta: -522.6 kB). Peak memory consumption was 141.0 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:41,267 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:21:41,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:41,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:41,269 INFO L168 Benchmark]: Boogie Preprocessor took 37.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:41,270 INFO L168 Benchmark]: RCFGBuilder took 775.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:41,271 INFO L168 Benchmark]: TraceAbstraction took 1423.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.9 MB in the end (delta: 100.1 MB). Peak memory consumption was 100.1 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:41,271 INFO L168 Benchmark]: Witness Printer took 150.11 ms. Allocated memory is still 1.2 GB. Free memory was 964.9 MB in the beginning and 958.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:21:41,274 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 604.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 775.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1423.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 964.9 MB in the end (delta: 100.1 MB). Peak memory consumption was 100.1 MB. Max. memory is 11.5 GB. * Witness Printer took 150.11 ms. Allocated memory is still 1.2 GB. Free memory was 964.9 MB in the beginning and 958.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] int retValue_acc ; [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] tmp = valid_product() [L168] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L738] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L740] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L746] tmp = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] COND TRUE waterLevel < 2 [L823] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] tmp___0 = __VERIFIER_nondet_int() [L758] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 238 SDtfs, 219 SDslu, 197 SDs, 0 SdLazy, 39 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s 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, 0.3s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 3353 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...