./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product56.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 525453629ce87b69ed1d4100e13fdb9e0c8a872a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-30f4e4a [2019-11-28 00:22:06,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:22:06,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:22:06,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:22:06,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:22:06,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:22:06,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:22:06,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:22:06,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:22:06,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:22:06,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:22:06,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:22:06,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:22:06,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:22:06,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:22:06,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:22:06,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:22:06,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:22:06,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:22:06,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:22:06,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:22:06,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:22:06,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:22:06,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:22:06,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:22:06,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:22:06,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:22:06,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:22:06,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:22:06,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:22:06,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:22:06,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:22:06,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:22:06,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:22:06,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:22:06,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:22:06,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:22:06,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:22:06,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:22:06,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:22:06,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:22:06,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:22:06,616 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:22:06,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:22:06,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:22:06,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:22:06,618 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:22:06,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:22:06,618 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:22:06,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:22:06,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:22:06,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:22:06,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:22:06,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:22:06,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:22:06,620 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:22:06,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:22:06,620 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:22:06,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:22:06,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:22:06,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:22:06,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:22:06,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:22:06,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:22:06,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:22:06,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:22:06,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:22:06,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:22:06,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:22:06,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:22:06,623 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(__VERIFIER_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 -> 525453629ce87b69ed1d4100e13fdb9e0c8a872a [2019-11-28 00:22:06,943 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:22:06,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:22:06,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:22:06,961 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:22:06,962 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:22:06,962 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-11-28 00:22:07,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4461b803/4367d5391a6245389851f79e2011f0f7/FLAG3bffa26c0 [2019-11-28 00:22:07,601 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:22:07,602 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-11-28 00:22:07,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4461b803/4367d5391a6245389851f79e2011f0f7/FLAG3bffa26c0 [2019-11-28 00:22:07,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4461b803/4367d5391a6245389851f79e2011f0f7 [2019-11-28 00:22:07,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:22:07,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:22:07,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:22:07,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:22:07,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:22:07,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:22:07" (1/1) ... [2019-11-28 00:22:07,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fa7dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:07, skipping insertion in model container [2019-11-28 00:22:07,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:22:07" (1/1) ... [2019-11-28 00:22:07,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:22:08,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:22:08,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:22:08,497 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:22:08,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:22:08,661 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:22:08,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08 WrapperNode [2019-11-28 00:22:08,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:22:08,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:22:08,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:22:08,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:22:08,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (1/1) ... [2019-11-28 00:22:08,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (1/1) ... [2019-11-28 00:22:08,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:22:08,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:22:08,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:22:08,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:22:08,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (1/1) ... [2019-11-28 00:22:08,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (1/1) ... [2019-11-28 00:22:08,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (1/1) ... [2019-11-28 00:22:08,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (1/1) ... [2019-11-28 00:22:08,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (1/1) ... [2019-11-28 00:22:08,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (1/1) ... [2019-11-28 00:22:08,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (1/1) ... [2019-11-28 00:22:08,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:22:08,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:22:08,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:22:08,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:22:08,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (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 [2019-11-28 00:22:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 00:22:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 00:22:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:22:08,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:22:10,090 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:22:10,092 INFO L297 CfgBuilder]: Removed 288 assume(true) statements. [2019-11-28 00:22:10,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:22:10 BoogieIcfgContainer [2019-11-28 00:22:10,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:22:10,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:22:10,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:22:10,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:22:10,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:22:07" (1/3) ... [2019-11-28 00:22:10,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fe8455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:22:10, skipping insertion in model container [2019-11-28 00:22:10,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:22:08" (2/3) ... [2019-11-28 00:22:10,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fe8455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:22:10, skipping insertion in model container [2019-11-28 00:22:10,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:22:10" (3/3) ... [2019-11-28 00:22:10,108 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2019-11-28 00:22:10,120 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:22:10,129 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-28 00:22:10,143 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-28 00:22:10,178 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:22:10,178 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:22:10,178 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:22:10,179 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:22:10,179 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:22:10,179 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:22:10,179 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:22:10,180 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:22:10,208 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-11-28 00:22:10,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 00:22:10,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:10,217 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:22:10,218 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:10,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:10,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1618500051, now seen corresponding path program 1 times [2019-11-28 00:22:10,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:10,230 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824585585] [2019-11-28 00:22:10,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:22:10,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824585585] [2019-11-28 00:22:10,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:10,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:22:10,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901664216] [2019-11-28 00:22:10,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 00:22:10,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:10,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 00:22:10,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 00:22:10,514 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-11-28 00:22:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:10,562 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2019-11-28 00:22:10,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 00:22:10,564 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-28 00:22:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:10,580 INFO L225 Difference]: With dead ends: 388 [2019-11-28 00:22:10,580 INFO L226 Difference]: Without dead ends: 193 [2019-11-28 00:22:10,585 INFO L630 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 [2019-11-28 00:22:10,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-28 00:22:10,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-11-28 00:22:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-28 00:22:10,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2019-11-28 00:22:10,644 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2019-11-28 00:22:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:10,645 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2019-11-28 00:22:10,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 00:22:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2019-11-28 00:22:10,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 00:22:10,646 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:10,647 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 00:22:10,647 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:10,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:10,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1765436492, now seen corresponding path program 1 times [2019-11-28 00:22:10,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:10,648 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065202121] [2019-11-28 00:22:10,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:22:10,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065202121] [2019-11-28 00:22:10,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:10,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 00:22:10,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93422422] [2019-11-28 00:22:10,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:22:10,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:10,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:22:10,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:22:10,774 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 3 states. [2019-11-28 00:22:10,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:10,803 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2019-11-28 00:22:10,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:22:10,808 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 00:22:10,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:10,809 INFO L225 Difference]: With dead ends: 193 [2019-11-28 00:22:10,809 INFO L226 Difference]: Without dead ends: 75 [2019-11-28 00:22:10,814 INFO L630 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 [2019-11-28 00:22:10,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-11-28 00:22:10,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-11-28 00:22:10,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-11-28 00:22:10,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2019-11-28 00:22:10,827 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2019-11-28 00:22:10,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:10,830 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2019-11-28 00:22:10,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:22:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2019-11-28 00:22:10,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 00:22:10,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:10,832 INFO L410 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] [2019-11-28 00:22:10,832 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:10,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:10,833 INFO L82 PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times [2019-11-28 00:22:10,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:10,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522246276] [2019-11-28 00:22:10,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:22:10,965 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522246276] [2019-11-28 00:22:10,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:10,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 00:22:10,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561110302] [2019-11-28 00:22:10,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:22:10,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:10,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:22:10,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:22:10,967 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 5 states. [2019-11-28 00:22:11,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:11,048 INFO L93 Difference]: Finished difference Result 169 states and 253 transitions. [2019-11-28 00:22:11,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 00:22:11,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-28 00:22:11,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:11,050 INFO L225 Difference]: With dead ends: 169 [2019-11-28 00:22:11,051 INFO L226 Difference]: Without dead ends: 100 [2019-11-28 00:22:11,052 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-28 00:22:11,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-11-28 00:22:11,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2019-11-28 00:22:11,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-28 00:22:11,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2019-11-28 00:22:11,064 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24 [2019-11-28 00:22:11,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:11,064 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2019-11-28 00:22:11,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:22:11,065 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2019-11-28 00:22:11,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 00:22:11,066 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:11,066 INFO L410 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] [2019-11-28 00:22:11,067 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:11,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:11,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times [2019-11-28 00:22:11,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:11,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879436963] [2019-11-28 00:22:11,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:22:11,175 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879436963] [2019-11-28 00:22:11,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:11,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 00:22:11,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431668244] [2019-11-28 00:22:11,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 00:22:11,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:11,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 00:22:11,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 00:22:11,177 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand 3 states. [2019-11-28 00:22:11,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:11,232 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2019-11-28 00:22:11,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 00:22:11,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-28 00:22:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:11,234 INFO L225 Difference]: With dead ends: 197 [2019-11-28 00:22:11,234 INFO L226 Difference]: Without dead ends: 107 [2019-11-28 00:22:11,236 INFO L630 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 [2019-11-28 00:22:11,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-11-28 00:22:11,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2019-11-28 00:22:11,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-28 00:22:11,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2019-11-28 00:22:11,249 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27 [2019-11-28 00:22:11,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:11,250 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2019-11-28 00:22:11,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 00:22:11,250 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2019-11-28 00:22:11,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-28 00:22:11,251 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:11,251 INFO L410 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] [2019-11-28 00:22:11,251 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:11,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:11,252 INFO L82 PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times [2019-11-28 00:22:11,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:11,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540903496] [2019-11-28 00:22:11,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:22:11,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:22:11,331 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540903496] [2019-11-28 00:22:11,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:22:11,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 00:22:11,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919794018] [2019-11-28 00:22:11,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 00:22:11,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:22:11,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 00:22:11,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 00:22:11,333 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand 5 states. [2019-11-28 00:22:11,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:22:11,507 INFO L93 Difference]: Finished difference Result 533 states and 778 transitions. [2019-11-28 00:22:11,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 00:22:11,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-28 00:22:11,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:22:11,512 INFO L225 Difference]: With dead ends: 533 [2019-11-28 00:22:11,512 INFO L226 Difference]: Without dead ends: 434 [2019-11-28 00:22:11,514 INFO L630 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 [2019-11-28 00:22:11,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-11-28 00:22:11,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 171. [2019-11-28 00:22:11,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-28 00:22:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 239 transitions. [2019-11-28 00:22:11,539 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 239 transitions. Word has length 27 [2019-11-28 00:22:11,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:22:11,540 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 239 transitions. [2019-11-28 00:22:11,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 00:22:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 239 transitions. [2019-11-28 00:22:11,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-28 00:22:11,542 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:22:11,542 INFO L410 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] [2019-11-28 00:22:11,542 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:22:11,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:22:11,543 INFO L82 PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times [2019-11-28 00:22:11,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:22:11,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211453829] [2019-11-28 00:22:11,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:22:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:22:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 00:22:11,812 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 00:22:11,813 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 00:22:11,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:22:11 BoogieIcfgContainer [2019-11-28 00:22:11,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:22:11,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:22:11,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:22:11,942 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:22:11,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:22:10" (3/4) ... [2019-11-28 00:22:11,945 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 00:22:12,073 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:22:12,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:22:12,079 INFO L168 Benchmark]: Toolchain (without parser) took 4121.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 879.9 MB in the end (delta: 76.4 MB). Peak memory consumption was 227.4 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:12,079 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:22:12,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:12,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:22:12,082 INFO L168 Benchmark]: Boogie Preprocessor took 87.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:12,082 INFO L168 Benchmark]: RCFGBuilder took 1226.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:12,083 INFO L168 Benchmark]: TraceAbstraction took 1844.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 893.0 MB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:12,087 INFO L168 Benchmark]: Witness Printer took 134.07 ms. Allocated memory is still 1.2 GB. Free memory was 893.0 MB in the beginning and 879.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-28 00:22:12,093 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 701.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 113.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1226.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1844.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 893.0 MB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 11.5 GB. * Witness Printer took 134.07 ms. Allocated memory is still 1.2 GB. Free memory was 893.0 MB in the beginning and 879.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] COND TRUE waterLevel < 2 [L606] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L920] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L927] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L701] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L708] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1013] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 197 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 751 SDtfs, 885 SDslu, 457 SDs, 0 SdLazy, 75 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 269 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4928 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...