./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product31.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 d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:43:13,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:13,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:13,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:13,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:13,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:13,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:13,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:13,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:13,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:13,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:13,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:13,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:13,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:13,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:13,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:13,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:13,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:13,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:13,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:13,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:13,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:13,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:13,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:13,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:13,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:13,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:13,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:13,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:13,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:13,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:13,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:13,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:13,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:13,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:13,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:13,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:13,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:13,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:13,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:13,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:13,644 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:13,687 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:13,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:13,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:13,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:13,689 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:13,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:13,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:13,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:13,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:13,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:13,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:13,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:13,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:13,692 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:13,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:13,692 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:13,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:13,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:13,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:13,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:13,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:13,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:13,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:13,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:13,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:13,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:13,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:13,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:13,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:13,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd [2020-10-20 01:43:13,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:13,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:13,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:13,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:13,909 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:13,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2020-10-20 01:43:13,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5cc0780/5e35122e95464122a90adb8aede7edf5/FLAG10919820f [2020-10-20 01:43:14,524 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:14,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2020-10-20 01:43:14,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5cc0780/5e35122e95464122a90adb8aede7edf5/FLAG10919820f [2020-10-20 01:43:14,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5cc0780/5e35122e95464122a90adb8aede7edf5 [2020-10-20 01:43:14,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:14,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:14,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:14,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:14,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:14,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:14" (1/1) ... [2020-10-20 01:43:14,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f79d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:14, skipping insertion in model container [2020-10-20 01:43:14,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:14" (1/1) ... [2020-10-20 01:43:14,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:14,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:15,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:15,335 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:15,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:15,454 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:15,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15 WrapperNode [2020-10-20 01:43:15,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:15,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:15,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:15,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:15,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:15,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:15,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:15,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:15,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... [2020-10-20 01:43:15,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:15,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:15,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:15,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:15,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:16,631 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:16,632 INFO L298 CfgBuilder]: Removed 172 assume(true) statements. [2020-10-20 01:43:16,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:16 BoogieIcfgContainer [2020-10-20 01:43:16,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:16,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:16,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:16,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:16,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:14" (1/3) ... [2020-10-20 01:43:16,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4b1e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:16, skipping insertion in model container [2020-10-20 01:43:16,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:15" (2/3) ... [2020-10-20 01:43:16,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4b1e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:16, skipping insertion in model container [2020-10-20 01:43:16,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:16" (3/3) ... [2020-10-20 01:43:16,643 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-10-20 01:43:16,654 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:16,661 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:16,673 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:16,697 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:16,697 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:16,697 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:16,697 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:16,698 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:16,698 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:16,698 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:16,699 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-10-20 01:43:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:16,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:16,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:16,724 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:16,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:16,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1335483370, now seen corresponding path program 1 times [2020-10-20 01:43:16,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:16,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260911914] [2020-10-20 01:43:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:17,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:17,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260911914] [2020-10-20 01:43:17,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:17,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:17,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750653825] [2020-10-20 01:43:17,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:17,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:17,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:17,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:17,046 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-10-20 01:43:17,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:17,109 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-10-20 01:43:17,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:17,111 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:17,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:17,128 INFO L225 Difference]: With dead ends: 223 [2020-10-20 01:43:17,128 INFO L226 Difference]: Without dead ends: 109 [2020-10-20 01:43:17,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:17,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-20 01:43:17,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-20 01:43:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-20 01:43:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-10-20 01:43:17,193 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-10-20 01:43:17,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:17,194 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-10-20 01:43:17,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:17,194 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-10-20 01:43:17,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:17,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:17,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:17,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:17,197 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:17,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:17,197 INFO L82 PathProgramCache]: Analyzing trace with hash 2048453173, now seen corresponding path program 1 times [2020-10-20 01:43:17,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:17,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268501305] [2020-10-20 01:43:17,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:17,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:17,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268501305] [2020-10-20 01:43:17,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:17,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:17,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799556564] [2020-10-20 01:43:17,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:17,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:17,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:17,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:17,315 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2020-10-20 01:43:17,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:17,328 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-10-20 01:43:17,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:17,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:17,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:17,330 INFO L225 Difference]: With dead ends: 109 [2020-10-20 01:43:17,330 INFO L226 Difference]: Without dead ends: 47 [2020-10-20 01:43:17,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-20 01:43:17,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-20 01:43:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 01:43:17,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-10-20 01:43:17,356 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-10-20 01:43:17,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:17,356 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-10-20 01:43:17,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-10-20 01:43:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:17,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:17,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:17,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:17,359 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:17,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:17,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1149792188, now seen corresponding path program 1 times [2020-10-20 01:43:17,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:17,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474062337] [2020-10-20 01:43:17,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:17,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:17,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474062337] [2020-10-20 01:43:17,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:17,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:17,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312085077] [2020-10-20 01:43:17,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:43:17,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:17,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:43:17,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:43:17,454 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 6 states. [2020-10-20 01:43:17,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:17,627 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2020-10-20 01:43:17,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:43:17,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-20 01:43:17,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:17,629 INFO L225 Difference]: With dead ends: 154 [2020-10-20 01:43:17,630 INFO L226 Difference]: Without dead ends: 113 [2020-10-20 01:43:17,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:17,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-20 01:43:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2020-10-20 01:43:17,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-20 01:43:17,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-10-20 01:43:17,643 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2020-10-20 01:43:17,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:17,643 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-10-20 01:43:17,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:43:17,644 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-10-20 01:43:17,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:43:17,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:17,645 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] [2020-10-20 01:43:17,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:17,646 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:17,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:17,646 INFO L82 PathProgramCache]: Analyzing trace with hash 190951434, now seen corresponding path program 1 times [2020-10-20 01:43:17,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:17,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605798374] [2020-10-20 01:43:17,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:17,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:17,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605798374] [2020-10-20 01:43:17,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:17,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:17,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705865166] [2020-10-20 01:43:17,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:17,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:17,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:17,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:17,735 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 5 states. [2020-10-20 01:43:17,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:17,868 INFO L93 Difference]: Finished difference Result 376 states and 572 transitions. [2020-10-20 01:43:17,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:17,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-20 01:43:17,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:17,872 INFO L225 Difference]: With dead ends: 376 [2020-10-20 01:43:17,873 INFO L226 Difference]: Without dead ends: 314 [2020-10-20 01:43:17,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:17,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-10-20 01:43:17,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 124. [2020-10-20 01:43:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-20 01:43:17,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 179 transitions. [2020-10-20 01:43:17,902 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 179 transitions. Word has length 26 [2020-10-20 01:43:17,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:17,903 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 179 transitions. [2020-10-20 01:43:17,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:17,903 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 179 transitions. [2020-10-20 01:43:17,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 01:43:17,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:17,906 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] [2020-10-20 01:43:17,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:17,910 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:17,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:17,910 INFO L82 PathProgramCache]: Analyzing trace with hash -418085112, now seen corresponding path program 1 times [2020-10-20 01:43:17,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:17,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106747815] [2020-10-20 01:43:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:18,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:18,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:18,246 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:18,246 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:18,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:18,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:18 BoogieIcfgContainer [2020-10-20 01:43:18,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:18,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:18,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:18,377 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:18,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:16" (3/4) ... [2020-10-20 01:43:18,380 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:18,478 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:18,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:18,481 INFO L168 Benchmark]: Toolchain (without parser) took 3669.78 ms. Allocated memory was 34.6 MB in the beginning and 58.7 MB in the end (delta: 24.1 MB). Free memory was 15.2 MB in the beginning and 12.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:18,482 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 33.6 MB. Free memory was 10.9 MB in the beginning and 10.8 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:18,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.44 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 14.4 MB in the beginning and 24.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:18,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.38 ms. Allocated memory is still 44.6 MB. Free memory was 24.7 MB in the beginning and 20.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:18,484 INFO L168 Benchmark]: Boogie Preprocessor took 78.89 ms. Allocated memory is still 44.6 MB. Free memory was 20.9 MB in the beginning and 18.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:18,485 INFO L168 Benchmark]: RCFGBuilder took 1023.25 ms. Allocated memory was 44.6 MB in the beginning and 50.3 MB in the end (delta: 5.8 MB). Free memory was 17.8 MB in the beginning and 26.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:18,485 INFO L168 Benchmark]: TraceAbstraction took 1740.58 ms. Allocated memory was 50.3 MB in the beginning and 58.7 MB in the end (delta: 8.4 MB). Free memory was 26.1 MB in the beginning and 25.9 MB in the end (delta: 258.5 kB). Peak memory consumption was 24.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:18,486 INFO L168 Benchmark]: Witness Printer took 102.42 ms. Allocated memory is still 58.7 MB. Free memory was 25.9 MB in the beginning and 12.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:18,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 33.6 MB. Free memory was 10.9 MB in the beginning and 10.8 MB in the end (delta: 45.8 kB). Peak memory consumption was 45.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 640.44 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 14.4 MB in the beginning and 24.7 MB in the end (delta: -10.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 72.38 ms. Allocated memory is still 44.6 MB. Free memory was 24.7 MB in the beginning and 20.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 78.89 ms. Allocated memory is still 44.6 MB. Free memory was 20.9 MB in the beginning and 18.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1023.25 ms. Allocated memory was 44.6 MB in the beginning and 50.3 MB in the end (delta: 5.8 MB). Free memory was 17.8 MB in the beginning and 26.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1740.58 ms. Allocated memory was 50.3 MB in the beginning and 58.7 MB in the end (delta: 8.4 MB). Free memory was 26.1 MB in the beginning and 25.9 MB in the end (delta: 258.5 kB). Peak memory consumption was 24.8 MB. Max. memory is 14.3 GB. * Witness Printer took 102.42 ms. Allocated memory is still 58.7 MB. Free memory was 25.9 MB in the beginning and 12.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L316] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L870] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L943] int retValue_acc ; [L944] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] tmp = valid_product() [L952] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L517] int splverifierCounter ; [L518] int tmp ; [L519] int tmp___0 ; [L520] int tmp___1 ; [L521] int tmp___2 ; [L524] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L526] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] tmp = __VERIFIER_nondet_int() [L536] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L544] tmp___0 = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] tmp___2 = __VERIFIER_nondet_int() [L556] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) [L650] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] COND FALSE !(\read(pumpRunning)) [L624] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L627] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] int tmp ; [L800] int tmp___0 ; [L801] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L805] tmp = isMethaneLevelCritical() [L807] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L811] tmp___0 = getWaterLevel() [L813] COND TRUE tmp___0 == 2 [L719] int retValue_acc ; [L722] retValue_acc = pumpRunning [L723] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L815] tmp___1 = isPumpRunning() [L817] 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_product31.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, 116 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: 400 SDtfs, 671 SDslu, 551 SDs, 0 SdLazy, 67 SolverSat, 10 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=124occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 235 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3882 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...