./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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_product63.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 7819fbe7d63fc779c0cf34c98e41b55fde6ca155 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-5485861 [2020-10-25 23:06:51,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:06:51,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:06:51,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:06:51,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:06:51,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:06:51,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:06:51,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:06:51,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:06:51,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:06:51,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:06:51,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:06:51,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:06:51,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:06:51,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:06:51,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:06:51,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:06:51,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:06:51,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:06:51,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:06:51,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:06:51,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:06:52,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:06:52,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:06:52,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:06:52,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:06:52,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:06:52,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:06:52,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:06:52,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:06:52,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:06:52,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:06:52,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:06:52,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:06:52,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:06:52,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:06:52,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:06:52,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:06:52,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:06:52,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:06:52,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:06:52,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:06:52,087 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:06:52,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:06:52,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:06:52,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:06:52,094 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:06:52,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:06:52,094 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:06:52,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:06:52,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:06:52,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:06:52,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:06:52,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:06:52,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:06:52,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:06:52,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:06:52,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:06:52,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:06:52,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:06:52,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:06:52,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:06:52,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:06:52,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:06:52,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:06:52,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:06:52,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:06:52,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:06:52,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:06:52,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:06:52,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:06:52,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7819fbe7d63fc779c0cf34c98e41b55fde6ca155 [2020-10-25 23:06:52,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:06:52,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:06:52,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:06:52,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:06:52,590 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:06:52,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2020-10-25 23:06:52,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d797a87e/cb3c9eb928bc4dd1ba27fbe7955b672f/FLAG87841310e [2020-10-25 23:06:53,424 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:06:53,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2020-10-25 23:06:53,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d797a87e/cb3c9eb928bc4dd1ba27fbe7955b672f/FLAG87841310e [2020-10-25 23:06:53,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d797a87e/cb3c9eb928bc4dd1ba27fbe7955b672f [2020-10-25 23:06:53,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:06:53,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:06:53,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:53,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:06:53,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:06:53,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:53" (1/1) ... [2020-10-25 23:06:53,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f40ebc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:53, skipping insertion in model container [2020-10-25 23:06:53,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:53" (1/1) ... [2020-10-25 23:06:53,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:06:53,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:06:54,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:54,255 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:06:54,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:54,464 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:06:54,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54 WrapperNode [2020-10-25 23:06:54,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:54,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:54,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:06:54,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:06:54,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (1/1) ... [2020-10-25 23:06:54,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (1/1) ... [2020-10-25 23:06:54,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:54,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:06:54,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:06:54,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:06:54,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (1/1) ... [2020-10-25 23:06:54,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (1/1) ... [2020-10-25 23:06:54,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (1/1) ... [2020-10-25 23:06:54,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (1/1) ... [2020-10-25 23:06:54,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (1/1) ... [2020-10-25 23:06:54,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (1/1) ... [2020-10-25 23:06:54,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (1/1) ... [2020-10-25 23:06:54,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:06:54,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:06:54,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:06:54,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:06:54,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (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 [2020-10-25 23:06:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:06:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:06:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:06:54,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:06:56,445 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:06:56,446 INFO L298 CfgBuilder]: Removed 364 assume(true) statements. [2020-10-25 23:06:56,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:56 BoogieIcfgContainer [2020-10-25 23:06:56,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:06:56,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:06:56,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:06:56,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:06:56,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:06:53" (1/3) ... [2020-10-25 23:06:56,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6bfabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:56, skipping insertion in model container [2020-10-25 23:06:56,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:54" (2/3) ... [2020-10-25 23:06:56,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6bfabd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:56, skipping insertion in model container [2020-10-25 23:06:56,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:56" (3/3) ... [2020-10-25 23:06:56,458 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2020-10-25 23:06:56,471 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:06:56,477 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:06:56,491 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:06:56,521 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:06:56,522 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:06:56,522 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:06:56,522 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:06:56,522 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:06:56,522 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:06:56,522 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:06:56,523 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:06:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-10-25 23:06:56,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 23:06:56,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:56,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:56,554 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:56,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:56,561 INFO L82 PathProgramCache]: Analyzing trace with hash -213727833, now seen corresponding path program 1 times [2020-10-25 23:06:56,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:56,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690275901] [2020-10-25 23:06:56,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:56,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690275901] [2020-10-25 23:06:56,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:56,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:56,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122780365] [2020-10-25 23:06:56,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:06:56,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:56,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:06:56,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:06:56,924 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 2 states. [2020-10-25 23:06:57,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:57,003 INFO L93 Difference]: Finished difference Result 463 states and 692 transitions. [2020-10-25 23:06:57,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:06:57,008 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-25 23:06:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:57,032 INFO L225 Difference]: With dead ends: 463 [2020-10-25 23:06:57,032 INFO L226 Difference]: Without dead ends: 229 [2020-10-25 23:06:57,049 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 [2020-10-25 23:06:57,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-25 23:06:57,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-10-25 23:06:57,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-25 23:06:57,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2020-10-25 23:06:57,151 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2020-10-25 23:06:57,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:57,151 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2020-10-25 23:06:57,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:06:57,151 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2020-10-25 23:06:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-25 23:06:57,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:57,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:57,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:06:57,154 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:57,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:57,154 INFO L82 PathProgramCache]: Analyzing trace with hash 811847301, now seen corresponding path program 1 times [2020-10-25 23:06:57,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:57,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013684706] [2020-10-25 23:06:57,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:57,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013684706] [2020-10-25 23:06:57,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:57,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:06:57,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211554977] [2020-10-25 23:06:57,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:57,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:57,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:57,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:57,309 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2020-10-25 23:06:57,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:57,340 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2020-10-25 23:06:57,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:57,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-25 23:06:57,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:57,345 INFO L225 Difference]: With dead ends: 229 [2020-10-25 23:06:57,345 INFO L226 Difference]: Without dead ends: 87 [2020-10-25 23:06:57,348 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 [2020-10-25 23:06:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-25 23:06:57,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-25 23:06:57,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-25 23:06:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2020-10-25 23:06:57,363 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2020-10-25 23:06:57,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:57,363 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2020-10-25 23:06:57,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2020-10-25 23:06:57,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:06:57,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:57,366 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] [2020-10-25 23:06:57,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:06:57,367 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:57,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:57,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1668670364, now seen corresponding path program 1 times [2020-10-25 23:06:57,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:57,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171322027] [2020-10-25 23:06:57,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:57,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171322027] [2020-10-25 23:06:57,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:57,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:57,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127258745] [2020-10-25 23:06:57,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:57,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:57,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:57,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:57,540 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 3 states. [2020-10-25 23:06:57,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:57,581 INFO L93 Difference]: Finished difference Result 249 states and 369 transitions. [2020-10-25 23:06:57,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:57,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-25 23:06:57,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:57,584 INFO L225 Difference]: With dead ends: 249 [2020-10-25 23:06:57,584 INFO L226 Difference]: Without dead ends: 168 [2020-10-25 23:06:57,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:57,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-25 23:06:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2020-10-25 23:06:57,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-25 23:06:57,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 243 transitions. [2020-10-25 23:06:57,602 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 243 transitions. Word has length 24 [2020-10-25 23:06:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:57,602 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 243 transitions. [2020-10-25 23:06:57,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:57,602 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 243 transitions. [2020-10-25 23:06:57,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-25 23:06:57,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:57,604 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, 1, 1] [2020-10-25 23:06:57,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:06:57,605 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:57,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:57,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1791027038, now seen corresponding path program 1 times [2020-10-25 23:06:57,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:57,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870969279] [2020-10-25 23:06:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:57,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:57,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870969279] [2020-10-25 23:06:57,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:57,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:57,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774713452] [2020-10-25 23:06:57,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:57,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:57,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:57,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:57,689 INFO L87 Difference]: Start difference. First operand 164 states and 243 transitions. Second operand 3 states. [2020-10-25 23:06:57,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:57,775 INFO L93 Difference]: Finished difference Result 337 states and 504 transitions. [2020-10-25 23:06:57,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:57,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-10-25 23:06:57,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:57,778 INFO L225 Difference]: With dead ends: 337 [2020-10-25 23:06:57,778 INFO L226 Difference]: Without dead ends: 179 [2020-10-25 23:06:57,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:57,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-25 23:06:57,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2020-10-25 23:06:57,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-25 23:06:57,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2020-10-25 23:06:57,793 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 27 [2020-10-25 23:06:57,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:57,794 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2020-10-25 23:06:57,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:57,794 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2020-10-25 23:06:57,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-25 23:06:57,795 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:57,795 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, 1, 1] [2020-10-25 23:06:57,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:06:57,796 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:57,796 INFO L82 PathProgramCache]: Analyzing trace with hash 234819321, now seen corresponding path program 1 times [2020-10-25 23:06:57,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:57,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608140114] [2020-10-25 23:06:57,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:57,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608140114] [2020-10-25 23:06:57,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:57,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:06:57,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840007589] [2020-10-25 23:06:57,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:06:57,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:57,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:06:57,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:06:57,890 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand 5 states. [2020-10-25 23:06:58,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:58,332 INFO L93 Difference]: Finished difference Result 899 states and 1311 transitions. [2020-10-25 23:06:58,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:06:58,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-25 23:06:58,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:58,341 INFO L225 Difference]: With dead ends: 899 [2020-10-25 23:06:58,341 INFO L226 Difference]: Without dead ends: 728 [2020-10-25 23:06:58,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:06:58,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-10-25 23:06:58,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 276. [2020-10-25 23:06:58,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-25 23:06:58,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 388 transitions. [2020-10-25 23:06:58,383 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 388 transitions. Word has length 27 [2020-10-25 23:06:58,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:58,384 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 388 transitions. [2020-10-25 23:06:58,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:06:58,384 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 388 transitions. [2020-10-25 23:06:58,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-25 23:06:58,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:58,387 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, 1, 1, 1] [2020-10-25 23:06:58,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:06:58,388 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:58,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:58,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1465444421, now seen corresponding path program 1 times [2020-10-25 23:06:58,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:58,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809874941] [2020-10-25 23:06:58,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:58,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:58,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:58,653 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:06:58,654 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:06:58,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 23:06:58,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:06:58 BoogieIcfgContainer [2020-10-25 23:06:58,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:06:58,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:06:58,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:06:58,813 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:06:58,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:56" (3/4) ... [2020-10-25 23:06:58,817 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:06:58,942 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:06:58,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:06:58,947 INFO L168 Benchmark]: Toolchain (without parser) took 5326.84 ms. Allocated memory was 44.0 MB in the beginning and 86.0 MB in the end (delta: 41.9 MB). Free memory was 29.3 MB in the beginning and 41.2 MB in the end (delta: -11.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:58,948 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 44.0 MB. Free memory was 24.8 MB in the beginning and 24.8 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:06:58,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.90 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.6 MB in the beginning and 28.7 MB in the end (delta: -148.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:58,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.34 ms. Allocated memory is still 54.5 MB. Free memory was 28.7 MB in the beginning and 36.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:58,950 INFO L168 Benchmark]: Boogie Preprocessor took 108.39 ms. Allocated memory is still 54.5 MB. Free memory was 36.0 MB in the beginning and 31.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:58,951 INFO L168 Benchmark]: RCFGBuilder took 1758.75 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.7 MB in the beginning and 39.6 MB in the end (delta: -7.9 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:58,952 INFO L168 Benchmark]: TraceAbstraction took 2357.28 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 39.2 MB in the beginning and 53.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:58,953 INFO L168 Benchmark]: Witness Printer took 135.02 ms. Allocated memory is still 86.0 MB. Free memory was 53.0 MB in the beginning and 41.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:58,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 44.0 MB. Free memory was 24.8 MB in the beginning and 24.8 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 839.90 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.6 MB in the beginning and 28.7 MB in the end (delta: -148.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.34 ms. Allocated memory is still 54.5 MB. Free memory was 28.7 MB in the beginning and 36.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.39 ms. Allocated memory is still 54.5 MB. Free memory was 36.0 MB in the beginning and 31.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1758.75 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.7 MB in the beginning and 39.6 MB in the end (delta: -7.9 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2357.28 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 39.2 MB in the beginning and 53.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. * Witness Printer took 135.02 ms. Allocated memory is still 86.0 MB. Free memory was 53.0 MB in the beginning and 41.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 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: [L42] int cleanupTimeShifts = 4; [L190] int pumpRunning = 0; [L191] int systemActive = 1; [L514] int waterLevel = 1; [L515] int methaneLevelCritical = 0; [L829] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L447] int splverifierCounter ; [L448] int tmp ; [L449] int tmp___0 ; [L450] int tmp___1 ; [L451] int tmp___2 ; [L454] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L458] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L464] tmp = __VERIFIER_nondet_int() [L466] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] COND TRUE waterLevel < 2 [L533] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L474] tmp___0 = __VERIFIER_nondet_int() [L476] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L484] tmp___2 = __VERIFIER_nondet_int() [L486] COND FALSE !(\read(tmp___2)) [L490] tmp___1 = __VERIFIER_nondet_int() [L492] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L441] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L198] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L205] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L627] int tmp ; [L628] int tmp___0 ; [L629] int tmp___1 ; [L553] int retValue_acc ; [L556] retValue_acc = methaneLevelCritical [L557] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L633] tmp = isMethaneLevelCritical() [L635] COND FALSE !(\read(tmp)) [L585] int retValue_acc ; [L588] retValue_acc = waterLevel [L589] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L639] tmp___0 = getWaterLevel() [L641] COND TRUE tmp___0 == 2 [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L643] tmp___1 = isPumpRunning() [L645] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product63.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 236 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 869 SDtfs, 682 SDslu, 599 SDs, 0 SdLazy, 73 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 458 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 5388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...