./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.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_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/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 b18fc9f0044b48e81511337a91deb94a0dfeec26 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:10:55,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:10:55,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:10:55,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:10:55,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:10:55,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:10:55,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:10:55,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:10:55,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:10:55,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:10:55,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:10:55,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:10:55,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:10:55,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:10:55,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:10:55,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:10:55,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:10:55,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:10:55,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:10:55,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:10:55,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:10:55,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:10:55,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:10:55,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:10:55,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:10:55,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:10:55,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:10:55,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:10:55,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:10:55,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:10:55,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:10:55,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:10:55,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:10:55,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:10:55,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:10:55,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:10:55,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:10:55,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:10:55,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:10:55,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:10:55,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:10:55,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:10:55,493 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:10:55,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:10:55,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:10:55,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:10:55,494 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:10:55,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:10:55,494 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:10:55,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:10:55,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:10:55,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:10:55,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:10:55,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:10:55,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:10:55,495 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:10:55,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:10:55,495 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:10:55,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:10:55,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:10:55,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:10:55,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:10:55,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:10:55,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:10:55,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:10:55,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:10:55,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:10:55,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:10:55,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:10:55,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:10:55,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:10:55,497 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_8dac8b66-b259-4a11-b800-2b76abb0b2c2/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 -> b18fc9f0044b48e81511337a91deb94a0dfeec26 [2019-12-07 18:10:55,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:10:55,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:10:55,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:10:55,607 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:10:55,607 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:10:55,608 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2019-12-07 18:10:55,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/data/d772217fc/94acb0f1ae084464a461308331fc3649/FLAG8ce8c8ea6 [2019-12-07 18:10:56,101 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:10:56,102 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2019-12-07 18:10:56,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/data/d772217fc/94acb0f1ae084464a461308331fc3649/FLAG8ce8c8ea6 [2019-12-07 18:10:56,117 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/data/d772217fc/94acb0f1ae084464a461308331fc3649 [2019-12-07 18:10:56,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:10:56,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:10:56,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:10:56,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:10:56,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:10:56,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56, skipping insertion in model container [2019-12-07 18:10:56,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:10:56,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:10:56,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:10:56,392 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:10:56,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:10:56,459 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:10:56,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56 WrapperNode [2019-12-07 18:10:56,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:10:56,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:10:56,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:10:56,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:10:56,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:10:56,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:10:56,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:10:56,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:10:56,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... [2019-12-07 18:10:56,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:10:56,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:10:56,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:10:56,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:10:56,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/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 18:10:56,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:10:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:10:56,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:10:56,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:10:56,940 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:10:56,940 INFO L287 CfgBuilder]: Removed 120 assume(true) statements. [2019-12-07 18:10:56,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:10:56 BoogieIcfgContainer [2019-12-07 18:10:56,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:10:56,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:10:56,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:10:56,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:10:56,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:10:56" (1/3) ... [2019-12-07 18:10:56,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146d3401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:10:56, skipping insertion in model container [2019-12-07 18:10:56,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:10:56" (2/3) ... [2019-12-07 18:10:56,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146d3401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:10:56, skipping insertion in model container [2019-12-07 18:10:56,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:10:56" (3/3) ... [2019-12-07 18:10:56,945 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2019-12-07 18:10:56,951 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:10:56,956 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 18:10:56,963 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 18:10:56,979 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:10:56,979 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:10:56,979 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:10:56,979 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:10:56,979 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:10:56,979 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:10:56,979 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:10:56,979 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:10:56,990 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-12-07 18:10:56,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 18:10:56,994 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:56,995 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:10:56,995 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:56,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1782116946, now seen corresponding path program 1 times [2019-12-07 18:10:57,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:57,004 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702986782] [2019-12-07 18:10:57,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:57,152 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 18:10:57,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702986782] [2019-12-07 18:10:57,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:57,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:10:57,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764303110] [2019-12-07 18:10:57,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:10:57,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:57,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:10:57,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:10:57,167 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2019-12-07 18:10:57,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:57,185 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2019-12-07 18:10:57,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:10:57,186 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 18:10:57,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:57,193 INFO L225 Difference]: With dead ends: 172 [2019-12-07 18:10:57,193 INFO L226 Difference]: Without dead ends: 85 [2019-12-07 18:10:57,195 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 18:10:57,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-12-07 18:10:57,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-12-07 18:10:57,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 18:10:57,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2019-12-07 18:10:57,223 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2019-12-07 18:10:57,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:57,224 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2019-12-07 18:10:57,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:10:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2019-12-07 18:10:57,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 18:10:57,224 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:57,224 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 18:10:57,225 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:57,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:57,225 INFO L82 PathProgramCache]: Analyzing trace with hash 735360049, now seen corresponding path program 1 times [2019-12-07 18:10:57,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:57,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832393066] [2019-12-07 18:10:57,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:57,280 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 18:10:57,280 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832393066] [2019-12-07 18:10:57,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:57,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:10:57,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868686947] [2019-12-07 18:10:57,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:10:57,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:57,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:10:57,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:10:57,282 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2019-12-07 18:10:57,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:57,290 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2019-12-07 18:10:57,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:10:57,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-07 18:10:57,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:57,291 INFO L225 Difference]: With dead ends: 85 [2019-12-07 18:10:57,291 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 18:10:57,291 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 18:10:57,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 18:10:57,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 18:10:57,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 18:10:57,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-12-07 18:10:57,295 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2019-12-07 18:10:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:57,295 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-12-07 18:10:57,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:10:57,296 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-12-07 18:10:57,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 18:10:57,296 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:57,296 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 18:10:57,296 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:57,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:57,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2019-12-07 18:10:57,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:57,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750576777] [2019-12-07 18:10:57,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:57,349 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 18:10:57,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750576777] [2019-12-07 18:10:57,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:57,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:10:57,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613032689] [2019-12-07 18:10:57,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:10:57,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:57,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:10:57,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:10:57,350 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 5 states. [2019-12-07 18:10:57,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:57,396 INFO L93 Difference]: Finished difference Result 95 states and 138 transitions. [2019-12-07 18:10:57,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:10:57,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-12-07 18:10:57,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:57,398 INFO L225 Difference]: With dead ends: 95 [2019-12-07 18:10:57,398 INFO L226 Difference]: Without dead ends: 62 [2019-12-07 18:10:57,399 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 18:10:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-12-07 18:10:57,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2019-12-07 18:10:57,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 18:10:57,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2019-12-07 18:10:57,408 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 22 [2019-12-07 18:10:57,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:57,408 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2019-12-07 18:10:57,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:10:57,408 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2019-12-07 18:10:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 18:10:57,409 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:57,409 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] [2019-12-07 18:10:57,410 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:57,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:57,410 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2019-12-07 18:10:57,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:57,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034164313] [2019-12-07 18:10:57,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:57,452 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 18:10:57,452 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034164313] [2019-12-07 18:10:57,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:57,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:10:57,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698912981] [2019-12-07 18:10:57,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:10:57,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:57,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:10:57,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:10:57,453 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 3 states. [2019-12-07 18:10:57,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:57,479 INFO L93 Difference]: Finished difference Result 131 states and 192 transitions. [2019-12-07 18:10:57,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:10:57,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 18:10:57,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:57,481 INFO L225 Difference]: With dead ends: 131 [2019-12-07 18:10:57,481 INFO L226 Difference]: Without dead ends: 79 [2019-12-07 18:10:57,481 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 18:10:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-12-07 18:10:57,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2019-12-07 18:10:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-12-07 18:10:57,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2019-12-07 18:10:57,490 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 23 [2019-12-07 18:10:57,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:57,491 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2019-12-07 18:10:57,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:10:57,491 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2019-12-07 18:10:57,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 18:10:57,492 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:57,492 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 18:10:57,492 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:57,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:57,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2019-12-07 18:10:57,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:57,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170402314] [2019-12-07 18:10:57,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:57,549 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 18:10:57,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170402314] [2019-12-07 18:10:57,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:57,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:10:57,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861480475] [2019-12-07 18:10:57,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:10:57,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:57,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:10:57,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:10:57,551 INFO L87 Difference]: Start difference. First operand 77 states and 109 transitions. Second operand 5 states. [2019-12-07 18:10:57,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:57,631 INFO L93 Difference]: Finished difference Result 371 states and 539 transitions. [2019-12-07 18:10:57,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 18:10:57,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 18:10:57,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:57,634 INFO L225 Difference]: With dead ends: 371 [2019-12-07 18:10:57,634 INFO L226 Difference]: Without dead ends: 300 [2019-12-07 18:10:57,634 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 18:10:57,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-12-07 18:10:57,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 140. [2019-12-07 18:10:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 18:10:57,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 196 transitions. [2019-12-07 18:10:57,650 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 196 transitions. Word has length 25 [2019-12-07 18:10:57,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:57,650 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 196 transitions. [2019-12-07 18:10:57,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:10:57,650 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 196 transitions. [2019-12-07 18:10:57,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 18:10:57,651 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:57,651 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] [2019-12-07 18:10:57,651 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:57,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:57,652 INFO L82 PathProgramCache]: Analyzing trace with hash -2056230884, now seen corresponding path program 1 times [2019-12-07 18:10:57,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:57,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694327433] [2019-12-07 18:10:57,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:57,689 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 18:10:57,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694327433] [2019-12-07 18:10:57,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:57,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:10:57,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039642142] [2019-12-07 18:10:57,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:10:57,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:57,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:10:57,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:10:57,691 INFO L87 Difference]: Start difference. First operand 140 states and 196 transitions. Second operand 5 states. [2019-12-07 18:10:57,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:57,781 INFO L93 Difference]: Finished difference Result 392 states and 553 transitions. [2019-12-07 18:10:57,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:10:57,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-07 18:10:57,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:57,784 INFO L225 Difference]: With dead ends: 392 [2019-12-07 18:10:57,784 INFO L226 Difference]: Without dead ends: 390 [2019-12-07 18:10:57,785 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 18:10:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2019-12-07 18:10:57,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 140. [2019-12-07 18:10:57,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 18:10:57,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 194 transitions. [2019-12-07 18:10:57,807 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 194 transitions. Word has length 26 [2019-12-07 18:10:57,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:57,807 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 194 transitions. [2019-12-07 18:10:57,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:10:57,807 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 194 transitions. [2019-12-07 18:10:57,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 18:10:57,809 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:57,809 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, 1, 1, 1, 1, 1] [2019-12-07 18:10:57,810 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:57,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:57,810 INFO L82 PathProgramCache]: Analyzing trace with hash 437867349, now seen corresponding path program 1 times [2019-12-07 18:10:57,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:57,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790648813] [2019-12-07 18:10:57,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:57,851 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 18:10:57,852 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790648813] [2019-12-07 18:10:57,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:57,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:10:57,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983320879] [2019-12-07 18:10:57,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:10:57,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:57,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:10:57,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:10:57,854 INFO L87 Difference]: Start difference. First operand 140 states and 194 transitions. Second operand 5 states. [2019-12-07 18:10:57,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:57,899 INFO L93 Difference]: Finished difference Result 426 states and 588 transitions. [2019-12-07 18:10:57,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:10:57,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-07 18:10:57,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:57,901 INFO L225 Difference]: With dead ends: 426 [2019-12-07 18:10:57,901 INFO L226 Difference]: Without dead ends: 292 [2019-12-07 18:10:57,902 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 18:10:57,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2019-12-07 18:10:57,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 146. [2019-12-07 18:10:57,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-12-07 18:10:57,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 200 transitions. [2019-12-07 18:10:57,915 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 200 transitions. Word has length 33 [2019-12-07 18:10:57,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:57,915 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 200 transitions. [2019-12-07 18:10:57,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:10:57,915 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 200 transitions. [2019-12-07 18:10:57,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 18:10:57,917 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:57,917 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, 1, 1, 1, 1, 1] [2019-12-07 18:10:57,917 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:57,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:57,917 INFO L82 PathProgramCache]: Analyzing trace with hash -148938665, now seen corresponding path program 1 times [2019-12-07 18:10:57,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:57,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472128480] [2019-12-07 18:10:57,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:57,947 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 18:10:57,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472128480] [2019-12-07 18:10:57,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:57,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:10:57,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928313716] [2019-12-07 18:10:57,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:10:57,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:57,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:10:57,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:10:57,948 INFO L87 Difference]: Start difference. First operand 146 states and 200 transitions. Second operand 4 states. [2019-12-07 18:10:57,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:57,978 INFO L93 Difference]: Finished difference Result 370 states and 506 transitions. [2019-12-07 18:10:57,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:10:57,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-12-07 18:10:57,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:57,979 INFO L225 Difference]: With dead ends: 370 [2019-12-07 18:10:57,979 INFO L226 Difference]: Without dead ends: 230 [2019-12-07 18:10:57,980 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 18:10:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-12-07 18:10:57,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 150. [2019-12-07 18:10:57,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-12-07 18:10:58,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 204 transitions. [2019-12-07 18:10:58,000 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 204 transitions. Word has length 33 [2019-12-07 18:10:58,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:58,000 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 204 transitions. [2019-12-07 18:10:58,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:10:58,000 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 204 transitions. [2019-12-07 18:10:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 18:10:58,001 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:58,001 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, 1, 1, 1, 1, 1] [2019-12-07 18:10:58,001 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:58,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:58,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1428802343, now seen corresponding path program 1 times [2019-12-07 18:10:58,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:58,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405268103] [2019-12-07 18:10:58,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:58,027 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 18:10:58,027 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405268103] [2019-12-07 18:10:58,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:58,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:10:58,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889640079] [2019-12-07 18:10:58,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:10:58,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:58,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:10:58,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:10:58,029 INFO L87 Difference]: Start difference. First operand 150 states and 204 transitions. Second operand 3 states. [2019-12-07 18:10:58,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:58,051 INFO L93 Difference]: Finished difference Result 380 states and 516 transitions. [2019-12-07 18:10:58,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:10:58,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-07 18:10:58,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:58,052 INFO L225 Difference]: With dead ends: 380 [2019-12-07 18:10:58,052 INFO L226 Difference]: Without dead ends: 236 [2019-12-07 18:10:58,053 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 18:10:58,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-12-07 18:10:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2019-12-07 18:10:58,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-12-07 18:10:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 312 transitions. [2019-12-07 18:10:58,068 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 312 transitions. Word has length 33 [2019-12-07 18:10:58,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:58,068 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 312 transitions. [2019-12-07 18:10:58,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:10:58,068 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 312 transitions. [2019-12-07 18:10:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-07 18:10:58,069 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:58,069 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, 1, 1, 1, 1, 1, 1] [2019-12-07 18:10:58,069 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:58,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:58,069 INFO L82 PathProgramCache]: Analyzing trace with hash -271506405, now seen corresponding path program 1 times [2019-12-07 18:10:58,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:58,069 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954702310] [2019-12-07 18:10:58,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:10:58,104 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 18:10:58,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954702310] [2019-12-07 18:10:58,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:10:58,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 18:10:58,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165010326] [2019-12-07 18:10:58,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:10:58,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:10:58,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:10:58,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:10:58,105 INFO L87 Difference]: Start difference. First operand 236 states and 312 transitions. Second operand 6 states. [2019-12-07 18:10:58,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:10:58,253 INFO L93 Difference]: Finished difference Result 726 states and 964 transitions. [2019-12-07 18:10:58,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 18:10:58,253 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-07 18:10:58,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:10:58,255 INFO L225 Difference]: With dead ends: 726 [2019-12-07 18:10:58,255 INFO L226 Difference]: Without dead ends: 496 [2019-12-07 18:10:58,256 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:10:58,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-12-07 18:10:58,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 236. [2019-12-07 18:10:58,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-12-07 18:10:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 306 transitions. [2019-12-07 18:10:58,274 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 306 transitions. Word has length 34 [2019-12-07 18:10:58,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:10:58,274 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 306 transitions. [2019-12-07 18:10:58,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:10:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 306 transitions. [2019-12-07 18:10:58,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-07 18:10:58,275 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:10:58,275 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:10:58,275 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:10:58,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:10:58,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1907454321, now seen corresponding path program 1 times [2019-12-07 18:10:58,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:10:58,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46130397] [2019-12-07 18:10:58,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:10:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:10:58,379 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:10:58,379 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:10:58,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:10:58 BoogieIcfgContainer [2019-12-07 18:10:58,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:10:58,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:10:58,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:10:58,457 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:10:58,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:10:56" (3/4) ... [2019-12-07 18:10:58,459 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:10:58,525 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8dac8b66-b259-4a11-b800-2b76abb0b2c2/bin/uautomizer/witness.graphml [2019-12-07 18:10:58,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:10:58,527 INFO L168 Benchmark]: Toolchain (without parser) took 2406.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 946.2 MB in the beginning and 935.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 106.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:10:58,527 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:10:58,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -139.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:10:58,527 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.28 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 18:10:58,527 INFO L168 Benchmark]: Boogie Preprocessor took 27.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:10:58,528 INFO L168 Benchmark]: RCFGBuilder took 412.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.1 MB). Peak memory consumption was 62.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:10:58,528 INFO L168 Benchmark]: TraceAbstraction took 1515.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 958.4 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:10:58,528 INFO L168 Benchmark]: Witness Printer took 68.02 ms. Allocated memory is still 1.1 GB. Free memory was 958.4 MB in the beginning and 935.9 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:10:58,529 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -139.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.28 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 27.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 412.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.1 MB). Peak memory consumption was 62.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1515.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 958.4 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. * Witness Printer took 68.02 ms. Allocated memory is still 1.1 GB. Free memory was 958.4 MB in the beginning and 935.9 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L498] int pumpRunning = 0; [L499] int systemActive = 1; [L693] int waterLevel = 1; [L694] int methaneLevelCritical = 0; [L851] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L924] int retValue_acc ; [L925] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] int retValue_acc ; [L845] retValue_acc = 1 [L846] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] tmp = valid_product() [L933] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L439] tmp = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L711] COND TRUE waterLevel < 2 [L712] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L687] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L513] COND TRUE \read(systemActive) [L535] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L538] COND TRUE ! pumpRunning [L650] int retValue_acc ; [L651] int tmp ; [L652] int tmp___0 ; [L773] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L776] COND FALSE !(waterLevel < 2) [L780] retValue_acc = 0 [L781] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L656] tmp = isHighWaterSensorDry() [L658] COND FALSE !(\read(tmp)) [L661] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L663] retValue_acc = tmp___0 [L664] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] tmp = isHighWaterLevel() [L542] COND TRUE \read(tmp) [L569] int tmp ; [L594] int retValue_acc ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] retValue_acc = isMethaneLevelCritical() [L600] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L573] tmp = isMethaneAlarm() [L575] COND FALSE !(\read(tmp)) [L563] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L788] int tmp ; [L789] int tmp___0 ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L793] tmp = isMethaneLevelCritical() [L795] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L433] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L439] tmp = __VERIFIER_nondet_int() [L441] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L723] COND FALSE !(\read(methaneLevelCritical)) [L726] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND TRUE \read(tmp___2) [L687] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L506] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L699] COND TRUE waterLevel > 0 [L700] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L513] COND TRUE \read(systemActive) [L535] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L538] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L788] int tmp ; [L789] int tmp___0 ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L793] tmp = isMethaneLevelCritical() [L795] COND TRUE \read(tmp) [L605] int retValue_acc ; [L608] retValue_acc = pumpRunning [L609] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L797] tmp___0 = isPumpRunning() [L799] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.4s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 821 SDtfs, 1204 SDslu, 1337 SDs, 0 SdLazy, 175 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred 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, 10 MinimizatonAttempts, 902 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 12350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...