./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product13.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_product13.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 860ff1846e87757b91c6aac79a03ba005ad35e34 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:06:13,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:06:13,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:06:13,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:06:13,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:06:13,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:06:13,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:06:13,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:06:13,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:06:13,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:06:13,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:06:13,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:06:13,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:06:13,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:06:13,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:06:13,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:06:13,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:06:13,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:06:13,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:06:13,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:06:13,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:06:13,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:06:13,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:06:13,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:06:13,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:06:13,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:06:13,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:06:13,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:06:13,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:06:13,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:06:13,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:06:13,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:06:13,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:06:13,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:06:13,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:06:13,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:06:13,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:06:13,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:06:13,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:06:13,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:06:13,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:06:13,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:06:13,780 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:06:13,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:06:13,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:06:13,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:06:13,785 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:06:13,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:06:13,786 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:06:13,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:06:13,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:06:13,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:06:13,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:06:13,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:06:13,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:06:13,789 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:06:13,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:06:13,790 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:06:13,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:06:13,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:06:13,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:06:13,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:06:13,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:06:13,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:06:13,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:06:13,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:06:13,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:06:13,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:06:13,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:06:13,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:06:13,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:06:13,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860ff1846e87757b91c6aac79a03ba005ad35e34 [2020-10-25 23:06:14,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:06:14,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:06:14,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:06:14,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:06:14,313 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:06:14,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2020-10-25 23:06:14,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d257dd9cc/29afeea987dc4fb583a7b9706a758e69/FLAGe5831a1db [2020-10-25 23:06:15,066 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:06:15,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2020-10-25 23:06:15,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d257dd9cc/29afeea987dc4fb583a7b9706a758e69/FLAGe5831a1db [2020-10-25 23:06:15,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d257dd9cc/29afeea987dc4fb583a7b9706a758e69 [2020-10-25 23:06:15,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:06:15,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:06:15,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:15,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:06:15,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:06:15,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:15" (1/1) ... [2020-10-25 23:06:15,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630d1a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:15, skipping insertion in model container [2020-10-25 23:06:15,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:15" (1/1) ... [2020-10-25 23:06:15,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:06:15,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:06:15,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:15,894 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:06:15,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:16,010 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:06:16,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16 WrapperNode [2020-10-25 23:06:16,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:16,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:16,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:06:16,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:06:16,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:16,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:06:16,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:06:16,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:06:16,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (1/1) ... [2020-10-25 23:06:16,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:06:16,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:06:16,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:06:16,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:06:16,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (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 23:06:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:06:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:06:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:06:16,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:06:17,240 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:06:17,241 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-10-25 23:06:17,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:17 BoogieIcfgContainer [2020-10-25 23:06:17,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:06:17,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:06:17,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:06:17,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:06:17,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:06:15" (1/3) ... [2020-10-25 23:06:17,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42bb6b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:17, skipping insertion in model container [2020-10-25 23:06:17,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:16" (2/3) ... [2020-10-25 23:06:17,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42bb6b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:17, skipping insertion in model container [2020-10-25 23:06:17,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:17" (3/3) ... [2020-10-25 23:06:17,253 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-10-25 23:06:17,267 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:06:17,271 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:06:17,284 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:06:17,312 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:06:17,312 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:06:17,312 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:06:17,312 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:06:17,312 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:06:17,312 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:06:17,313 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:06:17,313 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:06:17,329 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-10-25 23:06:17,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 23:06:17,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:17,336 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 23:06:17,336 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:17,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:17,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1829990459, now seen corresponding path program 1 times [2020-10-25 23:06:17,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:17,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964138029] [2020-10-25 23:06:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:17,699 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 23:06:17,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964138029] [2020-10-25 23:06:17,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:17,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:17,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257281133] [2020-10-25 23:06:17,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:06:17,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:17,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:06:17,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:06:17,726 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2020-10-25 23:06:17,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:17,759 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2020-10-25 23:06:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:06:17,761 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-25 23:06:17,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:17,774 INFO L225 Difference]: With dead ends: 147 [2020-10-25 23:06:17,775 INFO L226 Difference]: Without dead ends: 71 [2020-10-25 23:06:17,779 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 23:06:17,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-25 23:06:17,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-25 23:06:17,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-25 23:06:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-10-25 23:06:17,837 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2020-10-25 23:06:17,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:17,838 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-10-25 23:06:17,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:06:17,838 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-10-25 23:06:17,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-25 23:06:17,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:17,840 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 23:06:17,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:06:17,841 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:17,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:17,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1553946084, now seen corresponding path program 1 times [2020-10-25 23:06:17,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:17,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906443415] [2020-10-25 23:06:17,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:17,996 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 23:06:17,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906443415] [2020-10-25 23:06:17,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:17,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:06:17,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606311791] [2020-10-25 23:06:17,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:17,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:18,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:18,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:18,001 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2020-10-25 23:06:18,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:18,012 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-10-25 23:06:18,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:18,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-25 23:06:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:18,014 INFO L225 Difference]: With dead ends: 71 [2020-10-25 23:06:18,014 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 23:06:18,016 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 23:06:18,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 23:06:18,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 23:06:18,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 23:06:18,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-10-25 23:06:18,022 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2020-10-25 23:06:18,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:18,022 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-10-25 23:06:18,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:18,022 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-10-25 23:06:18,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:06:18,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:18,023 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 23:06:18,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:06:18,024 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:18,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:18,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1835969560, now seen corresponding path program 1 times [2020-10-25 23:06:18,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:18,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149753150] [2020-10-25 23:06:18,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:18,156 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 23:06:18,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149753150] [2020-10-25 23:06:18,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:18,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:06:18,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270350581] [2020-10-25 23:06:18,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:06:18,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:18,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:06:18,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:06:18,160 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 6 states. [2020-10-25 23:06:18,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:18,349 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-10-25 23:06:18,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:06:18,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-25 23:06:18,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:18,351 INFO L225 Difference]: With dead ends: 60 [2020-10-25 23:06:18,352 INFO L226 Difference]: Without dead ends: 33 [2020-10-25 23:06:18,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:06:18,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-25 23:06:18,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-25 23:06:18,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-25 23:06:18,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-10-25 23:06:18,359 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2020-10-25 23:06:18,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:18,360 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-10-25 23:06:18,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:06:18,360 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-10-25 23:06:18,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-25 23:06:18,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:18,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:18,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:06:18,362 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:18,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:18,363 INFO L82 PathProgramCache]: Analyzing trace with hash -678170013, now seen corresponding path program 1 times [2020-10-25 23:06:18,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:18,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350280908] [2020-10-25 23:06:18,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:18,444 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 23:06:18,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350280908] [2020-10-25 23:06:18,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:18,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:06:18,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756875673] [2020-10-25 23:06:18,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:06:18,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:18,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:06:18,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:06:18,447 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states. [2020-10-25 23:06:18,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:18,566 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2020-10-25 23:06:18,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:06:18,566 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-25 23:06:18,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:18,568 INFO L225 Difference]: With dead ends: 158 [2020-10-25 23:06:18,568 INFO L226 Difference]: Without dead ends: 131 [2020-10-25 23:06:18,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:06:18,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-25 23:06:18,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 56. [2020-10-25 23:06:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-25 23:06:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2020-10-25 23:06:18,582 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 25 [2020-10-25 23:06:18,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:18,582 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2020-10-25 23:06:18,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:06:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2020-10-25 23:06:18,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-25 23:06:18,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:18,584 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] [2020-10-25 23:06:18,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:06:18,584 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:18,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:18,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1657488293, now seen corresponding path program 1 times [2020-10-25 23:06:18,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:18,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101154404] [2020-10-25 23:06:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:18,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:18,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:18,881 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:06:18,882 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:06:18,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:06:18,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:06:18 BoogieIcfgContainer [2020-10-25 23:06:18,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:06:18,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:06:18,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:06:18,985 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:06:18,986 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:17" (3/4) ... [2020-10-25 23:06:18,988 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:06:19,115 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:06:19,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:06:19,118 INFO L168 Benchmark]: Toolchain (without parser) took 3796.37 ms. Allocated memory was 37.7 MB in the beginning and 71.3 MB in the end (delta: 33.6 MB). Free memory was 21.9 MB in the beginning and 46.8 MB in the end (delta: -25.0 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,118 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 37.7 MB. Free memory was 24.9 MB in the beginning and 24.9 MB in the end (delta: 20.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:06:19,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.74 ms. Allocated memory was 37.7 MB in the beginning and 48.2 MB in the end (delta: 10.5 MB). Free memory was 21.2 MB in the beginning and 30.1 MB in the end (delta: -8.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.81 ms. Allocated memory is still 48.2 MB. Free memory was 29.9 MB in the beginning and 26.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,120 INFO L168 Benchmark]: Boogie Preprocessor took 62.96 ms. Allocated memory is still 48.2 MB. Free memory was 26.9 MB in the beginning and 24.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,121 INFO L168 Benchmark]: RCFGBuilder took 1073.88 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.8 MB in the beginning and 22.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,122 INFO L168 Benchmark]: TraceAbstraction took 1739.40 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 22.5 MB in the beginning and 32.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,123 INFO L168 Benchmark]: Witness Printer took 130.76 ms. Allocated memory is still 71.3 MB. Free memory was 32.1 MB in the beginning and 46.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:19,127 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 37.7 MB. Free memory was 24.9 MB in the beginning and 24.9 MB in the end (delta: 20.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 685.74 ms. Allocated memory was 37.7 MB in the beginning and 48.2 MB in the end (delta: 10.5 MB). Free memory was 21.2 MB in the beginning and 30.1 MB in the end (delta: -8.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.81 ms. Allocated memory is still 48.2 MB. Free memory was 29.9 MB in the beginning and 26.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.96 ms. Allocated memory is still 48.2 MB. Free memory was 26.9 MB in the beginning and 24.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1073.88 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.8 MB in the beginning and 22.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1739.40 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 22.5 MB in the beginning and 32.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Witness Printer took 130.76 ms. Allocated memory is still 71.3 MB. Free memory was 32.1 MB in the beginning and 46.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 10.4 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: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L175] int cleanupTimeShifts = 4; [L277] int pumpRunning = 0; [L278] int systemActive = 1; [L696] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L251] int retValue_acc ; [L252] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L258] tmp = valid_product() [L260] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L463] int splverifierCounter ; [L464] int tmp ; [L465] int tmp___0 ; [L466] int tmp___1 ; [L467] int tmp___2 ; [L470] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L472] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L474] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] tmp = __VERIFIER_nondet_int() [L482] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L490] tmp___0 = __VERIFIER_nondet_int() [L492] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L500] tmp___2 = __VERIFIER_nondet_int() [L502] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L292] COND TRUE \read(systemActive) [L314] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L317] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L429] int tmp ; [L430] int tmp___0 ; [L431] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L435] tmp = isMethaneLevelCritical() [L437] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L441] tmp___0 = getWaterLevel() [L443] COND TRUE tmp___0 == 2 [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L445] tmp___1 = isPumpRunning() [L447] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product13.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 336 SDslu, 175 SDs, 0 SdLazy, 41 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3741 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...