./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer --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 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-f470102 [2019-12-07 18:35:01,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:35:01,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:35:01,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:35:01,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:35:01,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:35:01,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:35:01,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:35:01,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:35:01,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:35:01,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:35:01,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:35:01,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:35:01,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:35:01,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:35:01,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:35:01,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:35:01,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:35:01,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:35:01,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:35:01,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:35:01,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:35:01,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:35:01,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:35:01,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:35:01,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:35:01,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:35:01,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:35:01,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:35:01,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:35:01,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:35:01,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:35:01,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:35:01,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:35:01,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:35:01,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:35:01,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:35:01,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:35:01,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:35:01,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:35:01,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:35:01,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:35:01,326 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:35:01,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:35:01,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:35:01,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:35:01,327 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:35:01,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:35:01,327 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:35:01,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:35:01,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:35:01,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:35:01,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:35:01,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:35:01,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:35:01,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:35:01,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:35:01,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:35:01,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:35:01,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:35:01,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:35:01,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:35:01,330 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer 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 -> 5f57b6f2bb2bb4fa43dac897ff23a28c21886d7b [2019-12-07 18:35:01,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:35:01,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:35:01,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:35:01,444 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:35:01,445 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:35:01,445 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2019-12-07 18:35:01,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/data/1834d879e/f0b1b31ff6f34ead87d04bee828ea428/FLAG1a2b3d3fb [2019-12-07 18:35:01,915 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:35:01,915 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2019-12-07 18:35:01,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/data/1834d879e/f0b1b31ff6f34ead87d04bee828ea428/FLAG1a2b3d3fb [2019-12-07 18:35:01,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/data/1834d879e/f0b1b31ff6f34ead87d04bee828ea428 [2019-12-07 18:35:01,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:35:01,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:35:01,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:01,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:35:01,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:35:01,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:01" (1/1) ... [2019-12-07 18:35:01,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c28c768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:01, skipping insertion in model container [2019-12-07 18:35:01,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:01" (1/1) ... [2019-12-07 18:35:01,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:35:01,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:35:02,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:02,212 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:35:02,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:02,293 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:35:02,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02 WrapperNode [2019-12-07 18:35:02,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:02,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:02,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:35:02,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:35:02,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... [2019-12-07 18:35:02,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... [2019-12-07 18:35:02,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:02,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:35:02,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:35:02,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:35:02,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... [2019-12-07 18:35:02,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... [2019-12-07 18:35:02,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... [2019-12-07 18:35:02,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... [2019-12-07 18:35:02,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... [2019-12-07 18:35:02,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... [2019-12-07 18:35:02,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... [2019-12-07 18:35:02,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:35:02,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:35:02,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:35:02,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:35:02,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/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 [2019-12-07 18:35:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:35:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:35:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:35:02,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:35:02,862 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:35:02,862 INFO L287 CfgBuilder]: Removed 198 assume(true) statements. [2019-12-07 18:35:02,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:02 BoogieIcfgContainer [2019-12-07 18:35:02,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:35:02,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:35:02,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:35:02,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:35:02,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:35:01" (1/3) ... [2019-12-07 18:35:02,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a357214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:35:02, skipping insertion in model container [2019-12-07 18:35:02,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:02" (2/3) ... [2019-12-07 18:35:02,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a357214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:35:02, skipping insertion in model container [2019-12-07 18:35:02,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:02" (3/3) ... [2019-12-07 18:35:02,868 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2019-12-07 18:35:02,875 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:35:02,879 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 18:35:02,887 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 18:35:02,903 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:35:02,903 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:35:02,903 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:35:02,903 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:35:02,903 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:35:02,904 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:35:02,904 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:35:02,904 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:35:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2019-12-07 18:35:02,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 18:35:02,921 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:02,922 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:02,922 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:02,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:02,926 INFO L82 PathProgramCache]: Analyzing trace with hash 325683581, now seen corresponding path program 1 times [2019-12-07 18:35:02,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:02,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311152050] [2019-12-07 18:35:02,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:03,083 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311152050] [2019-12-07 18:35:03,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:03,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:35:03,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187842225] [2019-12-07 18:35:03,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:35:03,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:03,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:35:03,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:35:03,097 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 2 states. [2019-12-07 18:35:03,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:03,125 INFO L93 Difference]: Finished difference Result 256 states and 383 transitions. [2019-12-07 18:35:03,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:35:03,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 18:35:03,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:03,135 INFO L225 Difference]: With dead ends: 256 [2019-12-07 18:35:03,136 INFO L226 Difference]: Without dead ends: 127 [2019-12-07 18:35:03,139 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 [2019-12-07 18:35:03,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-12-07 18:35:03,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-12-07 18:35:03,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-12-07 18:35:03,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2019-12-07 18:35:03,170 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 16 [2019-12-07 18:35:03,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:03,170 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2019-12-07 18:35:03,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:35:03,171 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2019-12-07 18:35:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 18:35:03,171 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:03,172 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:03,172 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:03,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:03,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1302516555, now seen corresponding path program 1 times [2019-12-07 18:35:03,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:03,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318701744] [2019-12-07 18:35:03,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:03,228 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318701744] [2019-12-07 18:35:03,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:03,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:35:03,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638201870] [2019-12-07 18:35:03,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:35:03,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:03,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:35:03,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:35:03,231 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 3 states. [2019-12-07 18:35:03,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:03,239 INFO L93 Difference]: Finished difference Result 127 states and 183 transitions. [2019-12-07 18:35:03,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:35:03,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-07 18:35:03,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:03,240 INFO L225 Difference]: With dead ends: 127 [2019-12-07 18:35:03,240 INFO L226 Difference]: Without dead ends: 53 [2019-12-07 18:35:03,241 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 [2019-12-07 18:35:03,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-12-07 18:35:03,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-12-07 18:35:03,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-12-07 18:35:03,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2019-12-07 18:35:03,246 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2019-12-07 18:35:03,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:03,246 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2019-12-07 18:35:03,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:35:03,246 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2019-12-07 18:35:03,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 18:35:03,247 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:03,247 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] [2019-12-07 18:35:03,247 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:03,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:03,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1189907750, now seen corresponding path program 1 times [2019-12-07 18:35:03,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:03,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893372063] [2019-12-07 18:35:03,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:03,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893372063] [2019-12-07 18:35:03,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:03,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:35:03,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807051307] [2019-12-07 18:35:03,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:35:03,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:03,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:35:03,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:35:03,301 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 5 states. [2019-12-07 18:35:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:03,347 INFO L93 Difference]: Finished difference Result 123 states and 180 transitions. [2019-12-07 18:35:03,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:35:03,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-12-07 18:35:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:03,348 INFO L225 Difference]: With dead ends: 123 [2019-12-07 18:35:03,349 INFO L226 Difference]: Without dead ends: 76 [2019-12-07 18:35:03,349 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 [2019-12-07 18:35:03,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-12-07 18:35:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2019-12-07 18:35:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-12-07 18:35:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 105 transitions. [2019-12-07 18:35:03,357 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 105 transitions. Word has length 22 [2019-12-07 18:35:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:03,357 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 105 transitions. [2019-12-07 18:35:03,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:35:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2019-12-07 18:35:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 18:35:03,358 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:03,358 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] [2019-12-07 18:35:03,358 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:03,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:03,358 INFO L82 PathProgramCache]: Analyzing trace with hash 752688312, now seen corresponding path program 1 times [2019-12-07 18:35:03,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:03,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045626342] [2019-12-07 18:35:03,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:03,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:03,390 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045626342] [2019-12-07 18:35:03,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:03,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:35:03,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107014364] [2019-12-07 18:35:03,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:35:03,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:03,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:35:03,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:35:03,391 INFO L87 Difference]: Start difference. First operand 72 states and 105 transitions. Second operand 3 states. [2019-12-07 18:35:03,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:03,416 INFO L93 Difference]: Finished difference Result 159 states and 234 transitions. [2019-12-07 18:35:03,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:35:03,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 18:35:03,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:03,418 INFO L225 Difference]: With dead ends: 159 [2019-12-07 18:35:03,418 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 18:35:03,418 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 [2019-12-07 18:35:03,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 18:35:03,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-12-07 18:35:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 18:35:03,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2019-12-07 18:35:03,426 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 24 [2019-12-07 18:35:03,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:03,426 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2019-12-07 18:35:03,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:35:03,426 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2019-12-07 18:35:03,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 18:35:03,427 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:03,427 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] [2019-12-07 18:35:03,427 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:03,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:03,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1744683281, now seen corresponding path program 1 times [2019-12-07 18:35:03,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:03,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280688014] [2019-12-07 18:35:03,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:03,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:03,490 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280688014] [2019-12-07 18:35:03,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:03,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 18:35:03,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452614213] [2019-12-07 18:35:03,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:35:03,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:03,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:35:03,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:35:03,492 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 8 states. [2019-12-07 18:35:03,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:03,738 INFO L93 Difference]: Finished difference Result 585 states and 851 transitions. [2019-12-07 18:35:03,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 18:35:03,739 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 18:35:03,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:03,742 INFO L225 Difference]: With dead ends: 585 [2019-12-07 18:35:03,743 INFO L226 Difference]: Without dead ends: 500 [2019-12-07 18:35:03,744 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-12-07 18:35:03,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2019-12-07 18:35:03,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 227. [2019-12-07 18:35:03,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-12-07 18:35:03,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 316 transitions. [2019-12-07 18:35:03,777 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 316 transitions. Word has length 25 [2019-12-07 18:35:03,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:03,778 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 316 transitions. [2019-12-07 18:35:03,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:35:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 316 transitions. [2019-12-07 18:35:03,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 18:35:03,781 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:03,781 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:03,781 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:03,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:03,782 INFO L82 PathProgramCache]: Analyzing trace with hash 31993027, now seen corresponding path program 1 times [2019-12-07 18:35:03,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:03,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211213916] [2019-12-07 18:35:03,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-12-07 18:35:03,840 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211213916] [2019-12-07 18:35:03,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:03,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:35:03,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435183505] [2019-12-07 18:35:03,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:35:03,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:03,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:35:03,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:35:03,842 INFO L87 Difference]: Start difference. First operand 227 states and 316 transitions. Second operand 5 states. [2019-12-07 18:35:03,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:03,969 INFO L93 Difference]: Finished difference Result 543 states and 767 transitions. [2019-12-07 18:35:03,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:35:03,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-12-07 18:35:03,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:03,974 INFO L225 Difference]: With dead ends: 543 [2019-12-07 18:35:03,974 INFO L226 Difference]: Without dead ends: 541 [2019-12-07 18:35:03,975 INFO L630 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 [2019-12-07 18:35:03,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2019-12-07 18:35:03,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 227. [2019-12-07 18:35:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-12-07 18:35:03,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 314 transitions. [2019-12-07 18:35:03,998 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 314 transitions. Word has length 41 [2019-12-07 18:35:03,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:03,998 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 314 transitions. [2019-12-07 18:35:03,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:35:03,999 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 314 transitions. [2019-12-07 18:35:04,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 18:35:04,000 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:04,000 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:04,001 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:04,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:04,001 INFO L82 PathProgramCache]: Analyzing trace with hash 501007855, now seen corresponding path program 1 times [2019-12-07 18:35:04,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:04,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620079814] [2019-12-07 18:35:04,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:04,039 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 18:35:04,039 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620079814] [2019-12-07 18:35:04,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:04,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:35:04,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990212646] [2019-12-07 18:35:04,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:35:04,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:04,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:35:04,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:35:04,041 INFO L87 Difference]: Start difference. First operand 227 states and 314 transitions. Second operand 5 states. [2019-12-07 18:35:04,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:04,109 INFO L93 Difference]: Finished difference Result 680 states and 933 transitions. [2019-12-07 18:35:04,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:35:04,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-12-07 18:35:04,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:04,112 INFO L225 Difference]: With dead ends: 680 [2019-12-07 18:35:04,113 INFO L226 Difference]: Without dead ends: 459 [2019-12-07 18:35:04,114 INFO L630 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 [2019-12-07 18:35:04,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2019-12-07 18:35:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 242. [2019-12-07 18:35:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2019-12-07 18:35:04,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 329 transitions. [2019-12-07 18:35:04,136 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 329 transitions. Word has length 51 [2019-12-07 18:35:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:04,136 INFO L462 AbstractCegarLoop]: Abstraction has 242 states and 329 transitions. [2019-12-07 18:35:04,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:35:04,136 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 329 transitions. [2019-12-07 18:35:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 18:35:04,138 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:04,138 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:04,138 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:04,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:04,139 INFO L82 PathProgramCache]: Analyzing trace with hash -85798159, now seen corresponding path program 1 times [2019-12-07 18:35:04,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:04,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822587067] [2019-12-07 18:35:04,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 18:35:04,180 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822587067] [2019-12-07 18:35:04,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:04,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:35:04,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376902788] [2019-12-07 18:35:04,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:35:04,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:04,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:35:04,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:04,182 INFO L87 Difference]: Start difference. First operand 242 states and 329 transitions. Second operand 4 states. [2019-12-07 18:35:04,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:04,224 INFO L93 Difference]: Finished difference Result 560 states and 760 transitions. [2019-12-07 18:35:04,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:04,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-12-07 18:35:04,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:04,226 INFO L225 Difference]: With dead ends: 560 [2019-12-07 18:35:04,226 INFO L226 Difference]: Without dead ends: 324 [2019-12-07 18:35:04,227 INFO L630 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 [2019-12-07 18:35:04,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-12-07 18:35:04,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 211. [2019-12-07 18:35:04,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-12-07 18:35:04,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2019-12-07 18:35:04,238 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 51 [2019-12-07 18:35:04,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:04,238 INFO L462 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2019-12-07 18:35:04,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:35:04,239 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2019-12-07 18:35:04,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 18:35:04,239 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:04,240 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:04,240 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:04,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:04,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1687322796, now seen corresponding path program 1 times [2019-12-07 18:35:04,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:04,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922932575] [2019-12-07 18:35:04,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:04,296 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:04,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922932575] [2019-12-07 18:35:04,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743786688] [2019-12-07 18:35:04,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:04,394 INFO L264 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:35:04,401 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:04,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 18:35:04,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-12-07 18:35:04,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117611663] [2019-12-07 18:35:04,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:35:04,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:04,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:35:04,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:35:04,425 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand 6 states. [2019-12-07 18:35:04,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:04,566 INFO L93 Difference]: Finished difference Result 598 states and 816 transitions. [2019-12-07 18:35:04,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:35:04,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2019-12-07 18:35:04,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:04,569 INFO L225 Difference]: With dead ends: 598 [2019-12-07 18:35:04,569 INFO L226 Difference]: Without dead ends: 435 [2019-12-07 18:35:04,570 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2019-12-07 18:35:04,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2019-12-07 18:35:04,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 274. [2019-12-07 18:35:04,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2019-12-07 18:35:04,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 365 transitions. [2019-12-07 18:35:04,595 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 365 transitions. Word has length 53 [2019-12-07 18:35:04,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:04,595 INFO L462 AbstractCegarLoop]: Abstraction has 274 states and 365 transitions. [2019-12-07 18:35:04,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:35:04,595 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 365 transitions. [2019-12-07 18:35:04,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-12-07 18:35:04,596 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:04,596 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 18:35:04,797 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 18:35:04,798 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:04,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:04,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1211162538, now seen corresponding path program 2 times [2019-12-07 18:35:04,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:04,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143823717] [2019-12-07 18:35:04,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:05,038 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:05,038 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:35:05,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:35:05 BoogieIcfgContainer [2019-12-07 18:35:05,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:35:05,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:35:05,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:35:05,146 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:35:05,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:02" (3/4) ... [2019-12-07 18:35:05,148 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:35:05,239 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6a1a6800-de26-4de2-bef8-2a938888b480/bin/uautomizer/witness.graphml [2019-12-07 18:35:05,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:35:05,241 INFO L168 Benchmark]: Toolchain (without parser) took 3307.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 944.7 MB in the beginning and 823.8 MB in the end (delta: 120.9 MB). Peak memory consumption was 216.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:05,241 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:05,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -140.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:05,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:05,242 INFO L168 Benchmark]: Boogie Preprocessor took 34.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:05,242 INFO L168 Benchmark]: RCFGBuilder took 486.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.3 MB in the end (delta: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:05,242 INFO L168 Benchmark]: TraceAbstraction took 2281.19 ms. Allocated memory is still 1.1 GB. Free memory was 995.3 MB in the beginning and 851.2 MB in the end (delta: 144.1 MB). Peak memory consumption was 144.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:05,243 INFO L168 Benchmark]: Witness Printer took 94.00 ms. Allocated memory is still 1.1 GB. Free memory was 851.2 MB in the beginning and 823.8 MB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:05,244 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 359.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -140.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 486.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.3 MB in the end (delta: 73.4 MB). Peak memory consumption was 73.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2281.19 ms. Allocated memory is still 1.1 GB. Free memory was 995.3 MB in the beginning and 851.2 MB in the end (delta: 144.1 MB). Peak memory consumption was 144.1 MB. Max. memory is 11.5 GB. * Witness Printer took 94.00 ms. Allocated memory is still 1.1 GB. Free memory was 851.2 MB in the beginning and 823.8 MB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L774] int waterLevel = 1; [L775] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] int retValue_acc ; [L526] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] tmp = __VERIFIER_nondet_int() [L888] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE waterLevel < 2 [L793] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L769] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L570] COND TRUE \read(systemActive) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND FALSE !(\read(pumpRunning)) [L592] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE ! pumpRunning [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L854] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] COND FALSE !(waterLevel < 2) [L861] retValue_acc = 0 [L862] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) [L651] int tmp ; [L676] int retValue_acc ; [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) [L646] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L878] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L769] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L570] COND TRUE \read(systemActive) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE \read(pumpRunning) [L676] int retValue_acc ; [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) [L592] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L878] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L769] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L570] COND TRUE \read(systemActive) [L618] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L621] COND TRUE \read(pumpRunning) [L676] int retValue_acc ; [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) [L592] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L595] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L439] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1025 SDtfs, 1698 SDslu, 1733 SDs, 0 SdLazy, 278 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1084 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 425 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 26367 SizeOfPredicates, 4 NumberOfNonLiveVariables, 414 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 65/71 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...