./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product43.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_spec4_product43.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 b6d6d35826c479e1a93aed1cd13f45357e90f885 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:44:12,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:44:12,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:44:12,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:44:12,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:44:12,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:44:12,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:44:12,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:44:12,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:44:12,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:44:12,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:44:12,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:44:12,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:44:12,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:44:12,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:44:12,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:44:12,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:44:12,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:44:12,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:44:12,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:44:12,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:44:12,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:44:12,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:44:12,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:44:12,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:44:12,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:44:12,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:44:12,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:44:12,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:44:12,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:44:12,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:44:12,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:44:12,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:44:12,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:44:12,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:44:12,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:44:12,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:44:12,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:44:12,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:44:12,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:44:12,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:44:12,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:44:12,625 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:44:12,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:44:12,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:44:12,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:44:12,627 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:44:12,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:44:12,628 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:44:12,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:44:12,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:44:12,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:44:12,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:44:12,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:44:12,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:44:12,629 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:44:12,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:44:12,630 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:44:12,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:44:12,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:44:12,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:44:12,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:44:12,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:44:12,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:12,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:44:12,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:44:12,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:44:12,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:44:12,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:44:12,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:44:12,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:44:12,634 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 -> b6d6d35826c479e1a93aed1cd13f45357e90f885 [2020-10-20 01:44:12,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:44:12,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:44:12,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:44:12,856 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:44:12,857 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:44:12,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2020-10-20 01:44:12,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380d822ef/ea0927cc789149bc8a65488f32dd46a9/FLAGed711bd34 [2020-10-20 01:44:13,549 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:44:13,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2020-10-20 01:44:13,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380d822ef/ea0927cc789149bc8a65488f32dd46a9/FLAGed711bd34 [2020-10-20 01:44:13,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380d822ef/ea0927cc789149bc8a65488f32dd46a9 [2020-10-20 01:44:13,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:44:13,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:44:13,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:13,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:44:13,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:44:13,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:13" (1/1) ... [2020-10-20 01:44:13,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@811e305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:13, skipping insertion in model container [2020-10-20 01:44:13,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:13" (1/1) ... [2020-10-20 01:44:13,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:44:13,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:44:14,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:14,308 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:44:14,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:14,441 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:44:14,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14 WrapperNode [2020-10-20 01:44:14,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:14,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:14,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:44:14,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:44:14,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (1/1) ... [2020-10-20 01:44:14,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (1/1) ... [2020-10-20 01:44:14,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:14,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:44:14,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:44:14,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:44:14,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (1/1) ... [2020-10-20 01:44:14,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (1/1) ... [2020-10-20 01:44:14,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (1/1) ... [2020-10-20 01:44:14,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (1/1) ... [2020-10-20 01:44:14,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (1/1) ... [2020-10-20 01:44:14,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (1/1) ... [2020-10-20 01:44:14,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (1/1) ... [2020-10-20 01:44:14,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:44:14,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:44:14,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:44:14,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:44:14,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (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 01:44:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:44:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:44:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:44:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:44:15,443 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:44:15,443 INFO L298 CfgBuilder]: Removed 124 assume(true) statements. [2020-10-20 01:44:15,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:15 BoogieIcfgContainer [2020-10-20 01:44:15,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:44:15,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:44:15,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:44:15,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:44:15,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:44:13" (1/3) ... [2020-10-20 01:44:15,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcee232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:15, skipping insertion in model container [2020-10-20 01:44:15,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:14" (2/3) ... [2020-10-20 01:44:15,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcee232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:15, skipping insertion in model container [2020-10-20 01:44:15,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:15" (3/3) ... [2020-10-20 01:44:15,466 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2020-10-20 01:44:15,478 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:44:15,486 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:44:15,497 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:44:15,520 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:44:15,521 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:44:15,521 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:44:15,521 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:44:15,521 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:44:15,522 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:44:15,522 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:44:15,522 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:44:15,537 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-10-20 01:44:15,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:44:15,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:15,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:15,543 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:15,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:15,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1660407341, now seen corresponding path program 1 times [2020-10-20 01:44:15,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:15,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911946322] [2020-10-20 01:44:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:15,771 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 01:44:15,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911946322] [2020-10-20 01:44:15,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:15,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:15,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28869119] [2020-10-20 01:44:15,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:44:15,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:15,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:44:15,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:15,797 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 2 states. [2020-10-20 01:44:15,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:15,834 INFO L93 Difference]: Finished difference Result 175 states and 260 transitions. [2020-10-20 01:44:15,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:44:15,836 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:44:15,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:15,867 INFO L225 Difference]: With dead ends: 175 [2020-10-20 01:44:15,867 INFO L226 Difference]: Without dead ends: 85 [2020-10-20 01:44:15,871 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 01:44:15,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-20 01:44:15,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-20 01:44:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-20 01:44:15,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2020-10-20 01:44:15,930 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2020-10-20 01:44:15,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:15,930 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2020-10-20 01:44:15,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:44:15,931 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-10-20 01:44:15,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:44:15,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:15,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:15,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:44:15,933 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:15,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:15,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1587803058, now seen corresponding path program 1 times [2020-10-20 01:44:15,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:15,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760387632] [2020-10-20 01:44:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,038 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 01:44:16,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760387632] [2020-10-20 01:44:16,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:16,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:16,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091182355] [2020-10-20 01:44:16,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:16,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:16,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:16,042 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2020-10-20 01:44:16,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:16,055 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-10-20 01:44:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:16,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:44:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:16,057 INFO L225 Difference]: With dead ends: 85 [2020-10-20 01:44:16,057 INFO L226 Difference]: Without dead ends: 39 [2020-10-20 01:44:16,058 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 01:44:16,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-20 01:44:16,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-20 01:44:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-20 01:44:16,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-10-20 01:44:16,064 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2020-10-20 01:44:16,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:16,064 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-10-20 01:44:16,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:16,064 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-10-20 01:44:16,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:44:16,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:16,065 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] [2020-10-20 01:44:16,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:44:16,066 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:16,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:16,066 INFO L82 PathProgramCache]: Analyzing trace with hash 337421565, now seen corresponding path program 1 times [2020-10-20 01:44:16,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:16,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572707715] [2020-10-20 01:44:16,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,153 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 01:44:16,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572707715] [2020-10-20 01:44:16,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:16,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:16,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308939701] [2020-10-20 01:44:16,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:16,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:16,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:16,156 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2020-10-20 01:44:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:16,181 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2020-10-20 01:44:16,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:16,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 01:44:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:16,183 INFO L225 Difference]: With dead ends: 105 [2020-10-20 01:44:16,183 INFO L226 Difference]: Without dead ends: 72 [2020-10-20 01:44:16,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:16,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-20 01:44:16,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-10-20 01:44:16,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-20 01:44:16,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-10-20 01:44:16,208 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 22 [2020-10-20 01:44:16,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:16,209 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-10-20 01:44:16,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:16,209 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-10-20 01:44:16,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:44:16,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:16,211 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] [2020-10-20 01:44:16,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:44:16,211 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:16,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:16,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1224569535, now seen corresponding path program 1 times [2020-10-20 01:44:16,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:16,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660413710] [2020-10-20 01:44:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,332 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 01:44:16,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660413710] [2020-10-20 01:44:16,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:16,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:16,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949238231] [2020-10-20 01:44:16,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:16,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:16,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:16,334 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 3 states. [2020-10-20 01:44:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:16,377 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-10-20 01:44:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:16,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-20 01:44:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:16,379 INFO L225 Difference]: With dead ends: 171 [2020-10-20 01:44:16,379 INFO L226 Difference]: Without dead ends: 109 [2020-10-20 01:44:16,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-20 01:44:16,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2020-10-20 01:44:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-20 01:44:16,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2020-10-20 01:44:16,399 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 23 [2020-10-20 01:44:16,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:16,400 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2020-10-20 01:44:16,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:16,400 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2020-10-20 01:44:16,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:44:16,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:16,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:16,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:16,402 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:16,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:16,402 INFO L82 PathProgramCache]: Analyzing trace with hash -840484654, now seen corresponding path program 1 times [2020-10-20 01:44:16,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:16,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242009864] [2020-10-20 01:44:16,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,493 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 01:44:16,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242009864] [2020-10-20 01:44:16,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:16,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:16,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743636512] [2020-10-20 01:44:16,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:16,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:16,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:16,495 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand 5 states. [2020-10-20 01:44:16,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:16,587 INFO L93 Difference]: Finished difference Result 399 states and 585 transitions. [2020-10-20 01:44:16,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:16,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-20 01:44:16,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:16,591 INFO L225 Difference]: With dead ends: 399 [2020-10-20 01:44:16,591 INFO L226 Difference]: Without dead ends: 298 [2020-10-20 01:44:16,592 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 01:44:16,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-20 01:44:16,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 194. [2020-10-20 01:44:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-20 01:44:16,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 272 transitions. [2020-10-20 01:44:16,625 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 272 transitions. Word has length 25 [2020-10-20 01:44:16,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:16,625 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 272 transitions. [2020-10-20 01:44:16,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:16,626 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 272 transitions. [2020-10-20 01:44:16,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:44:16,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:16,627 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 01:44:16,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:16,628 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:16,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:16,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1495173652, now seen corresponding path program 1 times [2020-10-20 01:44:16,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:16,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477016995] [2020-10-20 01:44:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,704 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 01:44:16,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477016995] [2020-10-20 01:44:16,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:16,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:16,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089452400] [2020-10-20 01:44:16,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:16,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:16,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:16,706 INFO L87 Difference]: Start difference. First operand 194 states and 272 transitions. Second operand 5 states. [2020-10-20 01:44:16,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:16,826 INFO L93 Difference]: Finished difference Result 398 states and 570 transitions. [2020-10-20 01:44:16,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:16,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-20 01:44:16,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:16,830 INFO L225 Difference]: With dead ends: 398 [2020-10-20 01:44:16,830 INFO L226 Difference]: Without dead ends: 396 [2020-10-20 01:44:16,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:44:16,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-10-20 01:44:16,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 194. [2020-10-20 01:44:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-20 01:44:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 270 transitions. [2020-10-20 01:44:16,848 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 270 transitions. Word has length 26 [2020-10-20 01:44:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:16,848 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 270 transitions. [2020-10-20 01:44:16,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 270 transitions. [2020-10-20 01:44:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:44:16,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:16,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:16,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:44:16,851 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:16,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:16,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1499969411, now seen corresponding path program 1 times [2020-10-20 01:44:16,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:16,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365057782] [2020-10-20 01:44:16,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,928 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 01:44:16,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365057782] [2020-10-20 01:44:16,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:16,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:16,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503396662] [2020-10-20 01:44:16,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:16,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:16,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:16,932 INFO L87 Difference]: Start difference. First operand 194 states and 270 transitions. Second operand 4 states. [2020-10-20 01:44:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:17,080 INFO L93 Difference]: Finished difference Result 392 states and 557 transitions. [2020-10-20 01:44:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:17,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-20 01:44:17,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:17,083 INFO L225 Difference]: With dead ends: 392 [2020-10-20 01:44:17,083 INFO L226 Difference]: Without dead ends: 291 [2020-10-20 01:44:17,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:17,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-10-20 01:44:17,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 287. [2020-10-20 01:44:17,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-20 01:44:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 399 transitions. [2020-10-20 01:44:17,102 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 399 transitions. Word has length 33 [2020-10-20 01:44:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:17,102 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 399 transitions. [2020-10-20 01:44:17,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 399 transitions. [2020-10-20 01:44:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:44:17,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:17,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:17,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:44:17,105 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:17,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1515134207, now seen corresponding path program 1 times [2020-10-20 01:44:17,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:17,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413930362] [2020-10-20 01:44:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:17,151 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 01:44:17,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413930362] [2020-10-20 01:44:17,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:17,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:17,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907371116] [2020-10-20 01:44:17,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:17,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:17,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:17,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:17,153 INFO L87 Difference]: Start difference. First operand 287 states and 399 transitions. Second operand 4 states. [2020-10-20 01:44:17,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:17,218 INFO L93 Difference]: Finished difference Result 817 states and 1156 transitions. [2020-10-20 01:44:17,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:17,219 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-20 01:44:17,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:17,222 INFO L225 Difference]: With dead ends: 817 [2020-10-20 01:44:17,223 INFO L226 Difference]: Without dead ends: 621 [2020-10-20 01:44:17,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-10-20 01:44:17,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 287. [2020-10-20 01:44:17,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-20 01:44:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 397 transitions. [2020-10-20 01:44:17,246 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 397 transitions. Word has length 33 [2020-10-20 01:44:17,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:17,246 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 397 transitions. [2020-10-20 01:44:17,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:17,246 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 397 transitions. [2020-10-20 01:44:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:44:17,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:17,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:17,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:44:17,248 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:17,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:17,249 INFO L82 PathProgramCache]: Analyzing trace with hash 928328193, now seen corresponding path program 1 times [2020-10-20 01:44:17,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:17,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171357716] [2020-10-20 01:44:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:17,311 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 01:44:17,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171357716] [2020-10-20 01:44:17,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:17,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:17,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637235437] [2020-10-20 01:44:17,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:17,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:17,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:17,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:17,314 INFO L87 Difference]: Start difference. First operand 287 states and 397 transitions. Second operand 5 states. [2020-10-20 01:44:17,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:17,458 INFO L93 Difference]: Finished difference Result 609 states and 854 transitions. [2020-10-20 01:44:17,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:17,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-20 01:44:17,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:17,461 INFO L225 Difference]: With dead ends: 609 [2020-10-20 01:44:17,461 INFO L226 Difference]: Without dead ends: 413 [2020-10-20 01:44:17,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 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 01:44:17,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-10-20 01:44:17,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 318. [2020-10-20 01:44:17,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-20 01:44:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 443 transitions. [2020-10-20 01:44:17,485 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 443 transitions. Word has length 33 [2020-10-20 01:44:17,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:17,486 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 443 transitions. [2020-10-20 01:44:17,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:17,486 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 443 transitions. [2020-10-20 01:44:17,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-20 01:44:17,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:17,488 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 01:44:17,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:44:17,488 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:17,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:17,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1797792970, now seen corresponding path program 1 times [2020-10-20 01:44:17,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:17,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697403785] [2020-10-20 01:44:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:17,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697403785] [2020-10-20 01:44:17,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:17,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:17,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294169764] [2020-10-20 01:44:17,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:17,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:17,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:17,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:17,566 INFO L87 Difference]: Start difference. First operand 318 states and 443 transitions. Second operand 5 states. [2020-10-20 01:44:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:17,646 INFO L93 Difference]: Finished difference Result 902 states and 1251 transitions. [2020-10-20 01:44:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:17,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-10-20 01:44:17,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:17,652 INFO L225 Difference]: With dead ends: 902 [2020-10-20 01:44:17,653 INFO L226 Difference]: Without dead ends: 590 [2020-10-20 01:44:17,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:17,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2020-10-20 01:44:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 330. [2020-10-20 01:44:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-10-20 01:44:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 455 transitions. [2020-10-20 01:44:17,704 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 455 transitions. Word has length 47 [2020-10-20 01:44:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:17,705 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 455 transitions. [2020-10-20 01:44:17,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 455 transitions. [2020-10-20 01:44:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-20 01:44:17,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:17,706 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 01:44:17,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:44:17,707 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:17,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1987701236, now seen corresponding path program 1 times [2020-10-20 01:44:17,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:17,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686169826] [2020-10-20 01:44:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:17,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:17,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686169826] [2020-10-20 01:44:17,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:17,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:17,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166341490] [2020-10-20 01:44:17,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:17,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:17,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:17,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:17,782 INFO L87 Difference]: Start difference. First operand 330 states and 455 transitions. Second operand 5 states. [2020-10-20 01:44:17,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:17,881 INFO L93 Difference]: Finished difference Result 713 states and 973 transitions. [2020-10-20 01:44:17,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:44:17,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-10-20 01:44:17,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:17,884 INFO L225 Difference]: With dead ends: 713 [2020-10-20 01:44:17,885 INFO L226 Difference]: Without dead ends: 389 [2020-10-20 01:44:17,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 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 01:44:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-20 01:44:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 261. [2020-10-20 01:44:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-20 01:44:17,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 351 transitions. [2020-10-20 01:44:17,940 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 351 transitions. Word has length 47 [2020-10-20 01:44:17,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:17,941 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 351 transitions. [2020-10-20 01:44:17,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:17,941 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 351 transitions. [2020-10-20 01:44:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-20 01:44:17,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:17,942 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:17,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:44:17,943 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:17,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:17,944 INFO L82 PathProgramCache]: Analyzing trace with hash -2112793356, now seen corresponding path program 1 times [2020-10-20 01:44:17,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:17,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284636792] [2020-10-20 01:44:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:18,036 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:18,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284636792] [2020-10-20 01:44:18,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826949720] [2020-10-20 01:44:18,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:44:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:18,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:44:18,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:18,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:44:18,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-10-20 01:44:18,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33963774] [2020-10-20 01:44:18,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:18,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:18,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:18,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:18,369 INFO L87 Difference]: Start difference. First operand 261 states and 351 transitions. Second operand 6 states. [2020-10-20 01:44:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:18,608 INFO L93 Difference]: Finished difference Result 735 states and 1011 transitions. [2020-10-20 01:44:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:18,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-10-20 01:44:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:18,612 INFO L225 Difference]: With dead ends: 735 [2020-10-20 01:44:18,612 INFO L226 Difference]: Without dead ends: 534 [2020-10-20 01:44:18,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:44:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2020-10-20 01:44:18,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 321. [2020-10-20 01:44:18,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-10-20 01:44:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 433 transitions. [2020-10-20 01:44:18,640 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 433 transitions. Word has length 48 [2020-10-20 01:44:18,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:18,641 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 433 transitions. [2020-10-20 01:44:18,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:18,641 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 433 transitions. [2020-10-20 01:44:18,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-20 01:44:18,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:18,642 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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 01:44:18,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-20 01:44:18,856 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:18,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:18,857 INFO L82 PathProgramCache]: Analyzing trace with hash -206469727, now seen corresponding path program 2 times [2020-10-20 01:44:18,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:18,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928481239] [2020-10-20 01:44:18,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:44:18,923 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:44:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:44:18,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:44:19,034 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:44:19,034 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:44:19,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 01:44:19,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:19 BoogieIcfgContainer [2020-10-20 01:44:19,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:19,193 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:19,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:19,194 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:19,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:15" (3/4) ... [2020-10-20 01:44:19,197 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:44:19,412 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:19,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:19,414 INFO L168 Benchmark]: Toolchain (without parser) took 5514.58 ms. Allocated memory was 43.5 MB in the beginning and 89.7 MB in the end (delta: 46.1 MB). Free memory was 24.3 MB in the beginning and 64.3 MB in the end (delta: -40.0 MB). Peak memory consumption was 52.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:19,415 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 33.0 MB. Free memory was 11.7 MB in the beginning and 11.7 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:19,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.37 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 23.4 MB in the beginning and 14.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:19,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.98 ms. Allocated memory was 44.0 MB in the beginning and 44.6 MB in the end (delta: 524.3 kB). Free memory was 14.0 MB in the beginning and 28.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:19,416 INFO L168 Benchmark]: Boogie Preprocessor took 68.25 ms. Allocated memory is still 44.6 MB. Free memory was 28.3 MB in the beginning and 25.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:19,417 INFO L168 Benchmark]: RCFGBuilder took 854.58 ms. Allocated memory was 44.6 MB in the beginning and 48.2 MB in the end (delta: 3.7 MB). Free memory was 25.9 MB in the beginning and 10.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:19,417 INFO L168 Benchmark]: TraceAbstraction took 3735.18 ms. Allocated memory was 48.2 MB in the beginning and 86.0 MB in the end (delta: 37.7 MB). Free memory was 30.6 MB in the beginning and 40.9 MB in the end (delta: -10.3 MB). Peak memory consumption was 54.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:19,418 INFO L168 Benchmark]: Witness Printer took 219.08 ms. Allocated memory was 86.0 MB in the beginning and 89.7 MB in the end (delta: 3.7 MB). Free memory was 40.9 MB in the beginning and 64.3 MB in the end (delta: -23.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:19,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 33.0 MB. Free memory was 11.7 MB in the beginning and 11.7 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 536.37 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 23.4 MB in the beginning and 14.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 77.98 ms. Allocated memory was 44.0 MB in the beginning and 44.6 MB in the end (delta: 524.3 kB). Free memory was 14.0 MB in the beginning and 28.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 68.25 ms. Allocated memory is still 44.6 MB. Free memory was 28.3 MB in the beginning and 25.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 854.58 ms. Allocated memory was 44.6 MB in the beginning and 48.2 MB in the end (delta: 3.7 MB). Free memory was 25.9 MB in the beginning and 10.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3735.18 ms. Allocated memory was 48.2 MB in the beginning and 86.0 MB in the end (delta: 37.7 MB). Free memory was 30.6 MB in the beginning and 40.9 MB in the end (delta: -10.3 MB). Peak memory consumption was 54.1 MB. Max. memory is 14.3 GB. * Witness Printer took 219.08 ms. Allocated memory was 86.0 MB in the beginning and 89.7 MB in the end (delta: 3.7 MB). Free memory was 40.9 MB in the beginning and 64.3 MB in the end (delta: -23.4 MB). Peak memory consumption was 26.7 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: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L417] int waterLevel = 1; [L418] int methaneLevelCritical = 0; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L393] int retValue_acc ; [L394] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L537] int retValue_acc ; [L540] retValue_acc = 1 [L541] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] COND TRUE waterLevel < 2 [L436] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] COND TRUE \read(systemActive) [L159] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND TRUE ! pumpRunning [L274] int retValue_acc ; [L275] int tmp ; [L276] int tmp___0 ; [L497] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L500] COND FALSE !(waterLevel < 2) [L504] retValue_acc = 0 [L505] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L280] tmp = isHighWaterSensorDry() [L282] COND FALSE !(\read(tmp)) [L285] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L287] retValue_acc = tmp___0 [L288] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] tmp = isHighWaterLevel() [L166] COND TRUE \read(tmp) [L193] int tmp ; [L218] int retValue_acc ; [L456] int retValue_acc ; [L459] retValue_acc = methaneLevelCritical [L460] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L222] retValue_acc = isMethaneLevelCritical() [L224] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] tmp = isMethaneAlarm() [L199] COND FALSE !(\read(tmp)) [L187] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L913] int tmp ; [L914] int tmp___0 ; [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L918] tmp = getWaterLevel() [L920] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L130] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L423] COND TRUE waterLevel > 0 [L424] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L137] COND TRUE \read(systemActive) [L159] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L162] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L913] int tmp ; [L914] int tmp___0 ; [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L918] tmp = getWaterLevel() [L920] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L130] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L423] COND TRUE waterLevel > 0 [L424] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L137] COND TRUE \read(systemActive) [L159] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L162] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L913] int tmp ; [L914] int tmp___0 ; [L488] int retValue_acc ; [L491] retValue_acc = waterLevel [L492] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L918] tmp = getWaterLevel() [L920] COND TRUE tmp == 0 [L229] int retValue_acc ; [L232] retValue_acc = pumpRunning [L233] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L922] tmp___0 = isPumpRunning() [L924] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product43.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 92 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.5s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1093 SDtfs, 1259 SDslu, 1592 SDs, 0 SdLazy, 235 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 1346 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 26739 SizeOfPredicates, 4 NumberOfNonLiveVariables, 413 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 50/56 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...