./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product42.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_spec1_product42.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 40c03acb761953b49167bc0508d57daafd17b745 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:41:41,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:41:41,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:41:41,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:41:41,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:41:41,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:41:41,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:41:41,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:41:41,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:41:41,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:41:41,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:41:41,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:41:41,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:41:41,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:41:41,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:41:41,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:41:41,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:41:41,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:41:41,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:41:41,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:41:41,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:41:41,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:41:41,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:41:41,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:41:41,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:41:41,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:41:41,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:41:41,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:41:41,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:41:41,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:41:41,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:41:41,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:41:41,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:41:41,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:41:41,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:41:41,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:41:41,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:41:41,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:41:41,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:41:41,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:41:41,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:41:41,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:41:41,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:41:41,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:41:41,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:41:41,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:41:41,695 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:41:41,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:41:41,696 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:41:41,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:41:41,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:41:41,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:41:41,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:41:41,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:41:41,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:41:41,699 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:41:41,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:41:41,699 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:41:41,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:41:41,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:41:41,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:41:41,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:41:41,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:41:41,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:41:41,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:41:41,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:41:41,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:41:41,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:41:41,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:41:41,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:41:41,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:41:41,702 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 -> 40c03acb761953b49167bc0508d57daafd17b745 [2020-10-20 01:41:41,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:41:41,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:41:41,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:41:41,926 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:41:41,927 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:41:41,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2020-10-20 01:41:41,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ec37164/2808c5d260e74cb5866b27fc9ac5353c/FLAG882c94651 [2020-10-20 01:41:42,542 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:41:42,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2020-10-20 01:41:42,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ec37164/2808c5d260e74cb5866b27fc9ac5353c/FLAG882c94651 [2020-10-20 01:41:42,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ec37164/2808c5d260e74cb5866b27fc9ac5353c [2020-10-20 01:41:42,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:41:42,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:41:42,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:41:42,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:41:42,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:41:42,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:41:42" (1/1) ... [2020-10-20 01:41:42,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37558f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:42, skipping insertion in model container [2020-10-20 01:41:42,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:41:42" (1/1) ... [2020-10-20 01:41:42,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:41:42,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:41:43,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:41:43,469 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:41:43,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:41:43,593 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:41:43,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43 WrapperNode [2020-10-20 01:41:43,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:41:43,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:41:43,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:41:43,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:41:43,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (1/1) ... [2020-10-20 01:41:43,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (1/1) ... [2020-10-20 01:41:43,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:41:43,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:41:43,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:41:43,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:41:43,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (1/1) ... [2020-10-20 01:41:43,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (1/1) ... [2020-10-20 01:41:43,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (1/1) ... [2020-10-20 01:41:43,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (1/1) ... [2020-10-20 01:41:43,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (1/1) ... [2020-10-20 01:41:43,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (1/1) ... [2020-10-20 01:41:43,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (1/1) ... [2020-10-20 01:41:43,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:41:43,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:41:43,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:41:43,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:41:43,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (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 01:41:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:41:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:41:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:41:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:41:44,769 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:41:44,769 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-10-20 01:41:44,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:41:44 BoogieIcfgContainer [2020-10-20 01:41:44,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:41:44,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:41:44,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:41:44,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:41:44,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:41:42" (1/3) ... [2020-10-20 01:41:44,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f88b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:41:44, skipping insertion in model container [2020-10-20 01:41:44,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:41:43" (2/3) ... [2020-10-20 01:41:44,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f88b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:41:44, skipping insertion in model container [2020-10-20 01:41:44,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:41:44" (3/3) ... [2020-10-20 01:41:44,779 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-10-20 01:41:44,791 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:41:44,798 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:41:44,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:41:44,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:41:44,834 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:41:44,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:41:44,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:41:44,834 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:41:44,834 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:41:44,835 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:41:44,835 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:41:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-20 01:41:44,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:41:44,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:44,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:41:44,860 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:44,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:44,865 INFO L82 PathProgramCache]: Analyzing trace with hash 109983179, now seen corresponding path program 1 times [2020-10-20 01:41:44,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:44,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99358488] [2020-10-20 01:41:44,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:45,186 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 01:41:45,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99358488] [2020-10-20 01:41:45,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:45,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:41:45,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282391668] [2020-10-20 01:41:45,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:41:45,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:45,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:41:45,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:41:45,210 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-20 01:41:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:45,241 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-10-20 01:41:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:41:45,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:41:45,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:45,254 INFO L225 Difference]: With dead ends: 171 [2020-10-20 01:41:45,254 INFO L226 Difference]: Without dead ends: 83 [2020-10-20 01:41:45,258 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 01:41:45,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-20 01:41:45,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-20 01:41:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-20 01:41:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2020-10-20 01:41:45,306 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2020-10-20 01:41:45,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:45,307 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-10-20 01:41:45,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:41:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2020-10-20 01:41:45,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:41:45,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:45,308 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 01:41:45,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:41:45,309 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:45,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:45,309 INFO L82 PathProgramCache]: Analyzing trace with hash -936773718, now seen corresponding path program 1 times [2020-10-20 01:41:45,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:45,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373194839] [2020-10-20 01:41:45,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:45,455 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 01:41:45,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373194839] [2020-10-20 01:41:45,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:45,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:41:45,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872438284] [2020-10-20 01:41:45,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:41:45,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:45,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:41:45,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:41:45,458 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2020-10-20 01:41:45,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:45,470 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2020-10-20 01:41:45,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:41:45,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:41:45,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:45,472 INFO L225 Difference]: With dead ends: 83 [2020-10-20 01:41:45,472 INFO L226 Difference]: Without dead ends: 37 [2020-10-20 01:41:45,473 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 01:41:45,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-20 01:41:45,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-20 01:41:45,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 01:41:45,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-10-20 01:41:45,479 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2020-10-20 01:41:45,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:45,480 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-10-20 01:41:45,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:41:45,480 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-10-20 01:41:45,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:41:45,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:45,481 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 01:41:45,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:41:45,481 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:45,482 INFO L82 PathProgramCache]: Analyzing trace with hash 533078269, now seen corresponding path program 1 times [2020-10-20 01:41:45,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:45,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062009506] [2020-10-20 01:41:45,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:45,580 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 01:41:45,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062009506] [2020-10-20 01:41:45,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:45,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:41:45,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946923152] [2020-10-20 01:41:45,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:41:45,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:45,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:41:45,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:41:45,583 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2020-10-20 01:41:45,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:45,608 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2020-10-20 01:41:45,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:41:45,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 01:41:45,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:45,610 INFO L225 Difference]: With dead ends: 68 [2020-10-20 01:41:45,610 INFO L226 Difference]: Without dead ends: 37 [2020-10-20 01:41:45,610 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 01:41:45,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-20 01:41:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-20 01:41:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 01:41:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2020-10-20 01:41:45,617 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2020-10-20 01:41:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:45,618 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2020-10-20 01:41:45,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:41:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2020-10-20 01:41:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:41:45,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:45,619 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 01:41:45,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:41:45,620 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:45,621 INFO L82 PathProgramCache]: Analyzing trace with hash 545820985, now seen corresponding path program 1 times [2020-10-20 01:41:45,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:45,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667453807] [2020-10-20 01:41:45,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:45,694 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 01:41:45,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667453807] [2020-10-20 01:41:45,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:45,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:41:45,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212358549] [2020-10-20 01:41:45,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:41:45,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:45,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:41:45,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:41:45,696 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2020-10-20 01:41:45,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:45,726 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2020-10-20 01:41:45,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:41:45,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-20 01:41:45,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:45,728 INFO L225 Difference]: With dead ends: 89 [2020-10-20 01:41:45,728 INFO L226 Difference]: Without dead ends: 58 [2020-10-20 01:41:45,729 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 01:41:45,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-20 01:41:45,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-10-20 01:41:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 01:41:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2020-10-20 01:41:45,738 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2020-10-20 01:41:45,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:45,739 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2020-10-20 01:41:45,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:41:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2020-10-20 01:41:45,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-20 01:41:45,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:45,741 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] [2020-10-20 01:41:45,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:41:45,741 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:45,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:45,742 INFO L82 PathProgramCache]: Analyzing trace with hash 2110814541, now seen corresponding path program 1 times [2020-10-20 01:41:45,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:45,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344835205] [2020-10-20 01:41:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:45,845 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 01:41:45,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344835205] [2020-10-20 01:41:45,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:45,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:41:45,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136001861] [2020-10-20 01:41:45,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:41:45,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:45,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:41:45,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:41:45,849 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2020-10-20 01:41:45,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:45,968 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2020-10-20 01:41:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 01:41:45,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-20 01:41:45,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:45,971 INFO L225 Difference]: With dead ends: 266 [2020-10-20 01:41:45,971 INFO L226 Difference]: Without dead ends: 216 [2020-10-20 01:41:45,972 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 01:41:45,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-10-20 01:41:45,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 100. [2020-10-20 01:41:45,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-20 01:41:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 139 transitions. [2020-10-20 01:41:45,992 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 139 transitions. Word has length 29 [2020-10-20 01:41:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:45,993 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 139 transitions. [2020-10-20 01:41:45,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:41:45,993 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2020-10-20 01:41:45,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 01:41:45,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:45,995 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] [2020-10-20 01:41:45,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:41:45,995 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:45,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:45,996 INFO L82 PathProgramCache]: Analyzing trace with hash 331369175, now seen corresponding path program 1 times [2020-10-20 01:41:45,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:45,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334775502] [2020-10-20 01:41:45,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:46,077 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 01:41:46,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334775502] [2020-10-20 01:41:46,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:46,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:41:46,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365692581] [2020-10-20 01:41:46,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:41:46,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:46,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:41:46,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:41:46,080 INFO L87 Difference]: Start difference. First operand 100 states and 139 transitions. Second operand 5 states. [2020-10-20 01:41:46,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:46,208 INFO L93 Difference]: Finished difference Result 280 states and 394 transitions. [2020-10-20 01:41:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:41:46,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-20 01:41:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:46,211 INFO L225 Difference]: With dead ends: 280 [2020-10-20 01:41:46,211 INFO L226 Difference]: Without dead ends: 278 [2020-10-20 01:41:46,212 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 01:41:46,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-20 01:41:46,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2020-10-20 01:41:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-20 01:41:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2020-10-20 01:41:46,229 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 30 [2020-10-20 01:41:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:46,229 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2020-10-20 01:41:46,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:41:46,230 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2020-10-20 01:41:46,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:41:46,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:46,231 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 01:41:46,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:41:46,232 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:46,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:46,232 INFO L82 PathProgramCache]: Analyzing trace with hash 261712181, now seen corresponding path program 1 times [2020-10-20 01:41:46,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:46,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575740698] [2020-10-20 01:41:46,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:46,323 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 01:41:46,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575740698] [2020-10-20 01:41:46,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:46,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:41:46,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468232353] [2020-10-20 01:41:46,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:41:46,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:46,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:41:46,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:41:46,327 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand 5 states. [2020-10-20 01:41:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:46,379 INFO L93 Difference]: Finished difference Result 270 states and 372 transitions. [2020-10-20 01:41:46,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:41:46,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-20 01:41:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:46,382 INFO L225 Difference]: With dead ends: 270 [2020-10-20 01:41:46,382 INFO L226 Difference]: Without dead ends: 176 [2020-10-20 01:41:46,383 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 01:41:46,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-20 01:41:46,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2020-10-20 01:41:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-20 01:41:46,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2020-10-20 01:41:46,398 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 33 [2020-10-20 01:41:46,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:46,398 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2020-10-20 01:41:46,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:41:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2020-10-20 01:41:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:41:46,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:46,400 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 01:41:46,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:41:46,401 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:46,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:46,402 INFO L82 PathProgramCache]: Analyzing trace with hash -325093833, now seen corresponding path program 1 times [2020-10-20 01:41:46,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:46,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144179517] [2020-10-20 01:41:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:46,485 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 01:41:46,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144179517] [2020-10-20 01:41:46,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:46,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:41:46,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886910379] [2020-10-20 01:41:46,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:41:46,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:46,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:41:46,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:41:46,489 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2020-10-20 01:41:46,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:46,526 INFO L93 Difference]: Finished difference Result 252 states and 342 transitions. [2020-10-20 01:41:46,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:41:46,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-20 01:41:46,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:46,529 INFO L225 Difference]: With dead ends: 252 [2020-10-20 01:41:46,529 INFO L226 Difference]: Without dead ends: 152 [2020-10-20 01:41:46,530 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 01:41:46,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-20 01:41:46,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 110. [2020-10-20 01:41:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-20 01:41:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2020-10-20 01:41:46,545 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 33 [2020-10-20 01:41:46,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:46,546 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2020-10-20 01:41:46,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:41:46,546 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2020-10-20 01:41:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:41:46,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:46,548 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 01:41:46,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:41:46,548 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:46,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:46,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1604957511, now seen corresponding path program 1 times [2020-10-20 01:41:46,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:46,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110029556] [2020-10-20 01:41:46,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:46,598 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 01:41:46,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110029556] [2020-10-20 01:41:46,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:46,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:41:46,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490687909] [2020-10-20 01:41:46,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:41:46,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:46,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:41:46,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:41:46,602 INFO L87 Difference]: Start difference. First operand 110 states and 148 transitions. Second operand 3 states. [2020-10-20 01:41:46,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:46,634 INFO L93 Difference]: Finished difference Result 262 states and 352 transitions. [2020-10-20 01:41:46,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:41:46,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-20 01:41:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:46,636 INFO L225 Difference]: With dead ends: 262 [2020-10-20 01:41:46,637 INFO L226 Difference]: Without dead ends: 158 [2020-10-20 01:41:46,638 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 01:41:46,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-20 01:41:46,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-20 01:41:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-20 01:41:46,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 206 transitions. [2020-10-20 01:41:46,738 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 206 transitions. Word has length 33 [2020-10-20 01:41:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:46,738 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 206 transitions. [2020-10-20 01:41:46,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:41:46,738 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 206 transitions. [2020-10-20 01:41:46,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 01:41:46,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:46,740 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, 1] [2020-10-20 01:41:46,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:41:46,741 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:46,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:46,741 INFO L82 PathProgramCache]: Analyzing trace with hash -447661573, now seen corresponding path program 1 times [2020-10-20 01:41:46,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:46,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038279384] [2020-10-20 01:41:46,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:41:46,821 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 01:41:46,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038279384] [2020-10-20 01:41:46,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:41:46,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 01:41:46,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696866082] [2020-10-20 01:41:46,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:41:46,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:41:46,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:41:46,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:41:46,823 INFO L87 Difference]: Start difference. First operand 158 states and 206 transitions. Second operand 8 states. [2020-10-20 01:41:47,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:41:47,465 INFO L93 Difference]: Finished difference Result 776 states and 1011 transitions. [2020-10-20 01:41:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-20 01:41:47,466 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-10-20 01:41:47,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:41:47,469 INFO L225 Difference]: With dead ends: 776 [2020-10-20 01:41:47,470 INFO L226 Difference]: Without dead ends: 624 [2020-10-20 01:41:47,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2020-10-20 01:41:47,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-10-20 01:41:47,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 158. [2020-10-20 01:41:47,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-20 01:41:47,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 202 transitions. [2020-10-20 01:41:47,494 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 202 transitions. Word has length 34 [2020-10-20 01:41:47,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:41:47,494 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 202 transitions. [2020-10-20 01:41:47,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:41:47,495 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 202 transitions. [2020-10-20 01:41:47,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-20 01:41:47,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:41:47,496 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-10-20 01:41:47,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:41:47,497 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:41:47,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:41:47,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1418096472, now seen corresponding path program 1 times [2020-10-20 01:41:47,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:41:47,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094712266] [2020-10-20 01:41:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:41:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:41:47,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:41:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:41:47,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:41:47,703 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:41:47,703 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:41:47,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:41:47,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:41:47 BoogieIcfgContainer [2020-10-20 01:41:47,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:41:47,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:41:47,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:41:47,823 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:41:47,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:41:44" (3/4) ... [2020-10-20 01:41:47,826 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:41:47,964 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:41:47,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:41:47,967 INFO L168 Benchmark]: Toolchain (without parser) took 5112.11 ms. Allocated memory was 35.1 MB in the beginning and 80.7 MB in the end (delta: 45.6 MB). Free memory was 7.2 MB in the beginning and 48.3 MB in the end (delta: -41.1 MB). Peak memory consumption was 39.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:41:47,967 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 34.6 MB. Free memory was 13.6 MB in the beginning and 13.5 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 01:41:47,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.06 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 6.3 MB in the beginning and 26.9 MB in the end (delta: -20.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:41:47,968 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.58 ms. Allocated memory is still 44.6 MB. Free memory was 26.9 MB in the beginning and 23.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:41:47,969 INFO L168 Benchmark]: Boogie Preprocessor took 59.72 ms. Allocated memory is still 44.6 MB. Free memory was 23.3 MB in the beginning and 20.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:41:47,969 INFO L168 Benchmark]: RCFGBuilder took 1041.61 ms. Allocated memory was 44.6 MB in the beginning and 48.2 MB in the end (delta: 3.7 MB). Free memory was 20.7 MB in the beginning and 18.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:41:47,969 INFO L168 Benchmark]: TraceAbstraction took 3049.69 ms. Allocated memory was 48.2 MB in the beginning and 80.7 MB in the end (delta: 32.5 MB). Free memory was 18.1 MB in the beginning and 30.4 MB in the end (delta: -12.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:41:47,970 INFO L168 Benchmark]: Witness Printer took 142.53 ms. Allocated memory is still 80.7 MB. Free memory was 30.4 MB in the beginning and 48.3 MB in the end (delta: -17.9 MB). Peak memory consumption was 17.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:41:47,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 34.6 MB. Free memory was 13.6 MB in the beginning and 13.5 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 733.06 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 6.3 MB in the beginning and 26.9 MB in the end (delta: -20.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 74.58 ms. Allocated memory is still 44.6 MB. Free memory was 26.9 MB in the beginning and 23.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 59.72 ms. Allocated memory is still 44.6 MB. Free memory was 23.3 MB in the beginning and 20.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1041.61 ms. Allocated memory was 44.6 MB in the beginning and 48.2 MB in the end (delta: 3.7 MB). Free memory was 20.7 MB in the beginning and 18.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3049.69 ms. Allocated memory was 48.2 MB in the beginning and 80.7 MB in the end (delta: 32.5 MB). Free memory was 18.1 MB in the beginning and 30.4 MB in the end (delta: -12.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 14.3 GB. * Witness Printer took 142.53 ms. Allocated memory is still 80.7 MB. Free memory was 30.4 MB in the beginning and 48.3 MB in the end (delta: -17.9 MB). Peak memory consumption was 17.0 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L583] int pumpRunning = 0; [L584] int systemActive = 1; [L835] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L908] int retValue_acc ; [L909] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] int retValue_acc ; [L829] retValue_acc = 1 [L830] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] tmp = valid_product() [L917] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L513] int splverifierCounter ; [L514] int tmp ; [L515] int tmp___0 ; [L516] int tmp___1 ; [L517] int tmp___2 ; [L520] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] tmp = __VERIFIER_nondet_int() [L532] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] tmp___0 = __VERIFIER_nondet_int() [L542] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] tmp___2 = __VERIFIER_nondet_int() [L552] COND TRUE \read(tmp___2) [L757] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L591] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] COND TRUE ! pumpRunning [L735] int retValue_acc ; [L736] int tmp ; [L737] int tmp___0 ; [L495] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(waterLevel < 2) [L502] retValue_acc = 0 [L503] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L741] tmp = isHighWaterSensorDry() [L743] COND FALSE !(\read(tmp)) [L746] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L748] retValue_acc = tmp___0 [L749] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] tmp = isHighWaterLevel() [L627] COND TRUE \read(tmp) [L654] int tmp ; [L679] int retValue_acc ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L683] retValue_acc = isMethaneLevelCritical() [L685] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isMethaneAlarm() [L660] COND FALSE !(\read(tmp)) [L648] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L772] int tmp ; [L773] int tmp___0 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L777] tmp = isMethaneLevelCritical() [L779] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L522] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L524] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L530] tmp = __VERIFIER_nondet_int() [L532] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L540] tmp___0 = __VERIFIER_nondet_int() [L542] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L445] COND FALSE !(\read(methaneLevelCritical)) [L448] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L550] tmp___2 = __VERIFIER_nondet_int() [L552] COND TRUE \read(tmp___2) [L757] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L591] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L623] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L772] int tmp ; [L773] int tmp___0 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L777] tmp = isMethaneLevelCritical() [L779] COND TRUE \read(tmp) [L690] int retValue_acc ; [L693] retValue_acc = pumpRunning [L694] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] tmp___0 = isPumpRunning() [L783] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product42.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 793 SDtfs, 1010 SDslu, 1621 SDs, 0 SdLazy, 236 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 874 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 13794 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...