./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product35_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product35_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dc08a0b643f05bf554ed8bba095ffb3efc1cc232 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-635dfa2 [2018-12-09 01:18:06,982 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:18:06,983 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:18:06,989 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:18:06,989 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:18:06,990 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:18:06,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:18:06,991 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:18:06,992 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:18:06,992 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:18:06,993 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:18:06,993 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:18:06,993 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:18:06,993 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:18:06,994 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:18:06,994 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:18:06,995 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:18:06,996 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:18:06,996 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:18:06,997 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:18:06,997 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:18:06,998 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:18:06,999 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:18:06,999 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:18:06,999 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:18:07,000 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:18:07,000 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:18:07,000 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:18:07,001 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:18:07,001 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:18:07,001 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:18:07,002 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:18:07,002 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:18:07,002 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:18:07,002 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:18:07,003 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:18:07,003 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 01:18:07,010 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:18:07,010 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:18:07,010 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:18:07,011 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:18:07,011 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 01:18:07,011 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 01:18:07,011 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 01:18:07,011 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 01:18:07,011 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 01:18:07,011 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 01:18:07,011 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 01:18:07,011 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 01:18:07,011 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 01:18:07,012 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:18:07,012 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:18:07,012 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:18:07,012 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:18:07,012 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:18:07,012 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:18:07,012 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:18:07,012 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:18:07,013 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:18:07,013 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:18:07,013 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:18:07,013 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:18:07,013 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:18:07,013 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:18:07,013 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:18:07,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:18:07,013 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:18:07,013 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:18:07,013 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:18:07,014 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 01:18:07,014 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:18:07,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:18:07,014 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 01:18:07,014 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan 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 -> Taipan 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 -> dc08a0b643f05bf554ed8bba095ffb3efc1cc232 [2018-12-09 01:18:07,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:18:07,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:18:07,043 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:18:07,044 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:18:07,045 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:18:07,045 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product35_false-unreach-call_false-termination.cil.c [2018-12-09 01:18:07,081 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/data/c113b2c67/1457a0a5be5a41818cdf6cd5acb9d052/FLAG094a54a74 [2018-12-09 01:18:07,421 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:18:07,422 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/sv-benchmarks/c/product-lines/minepump_spec1_product35_false-unreach-call_false-termination.cil.c [2018-12-09 01:18:07,428 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/data/c113b2c67/1457a0a5be5a41818cdf6cd5acb9d052/FLAG094a54a74 [2018-12-09 01:18:07,436 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/data/c113b2c67/1457a0a5be5a41818cdf6cd5acb9d052 [2018-12-09 01:18:07,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:18:07,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:18:07,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:18:07,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:18:07,441 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:18:07,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07, skipping insertion in model container [2018-12-09 01:18:07,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:18:07,468 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:18:07,610 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:18:07,649 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:18:07,689 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:18:07,704 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:18:07,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07 WrapperNode [2018-12-09 01:18:07,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:18:07,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:18:07,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:18:07,705 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:18:07,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:18:07,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:18:07,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:18:07,724 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:18:07,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... [2018-12-09 01:18:07,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:18:07,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:18:07,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:18:07,745 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:18:07,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/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 [2018-12-09 01:18:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 01:18:07,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 01:18:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:18:07,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:18:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 01:18:07,776 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 01:18:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:18:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 01:18:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 01:18:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 01:18:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 01:18:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 01:18:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 01:18:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 01:18:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 01:18:07,777 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 01:18:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 01:18:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 01:18:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 01:18:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 01:18:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 01:18:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 01:18:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 01:18:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 01:18:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 01:18:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 01:18:07,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 01:18:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 01:18:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 01:18:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 01:18:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 01:18:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 01:18:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 01:18:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 01:18:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 01:18:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 01:18:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 01:18:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 01:18:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 01:18:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 01:18:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 01:18:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 01:18:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:18:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:18:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 01:18:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 01:18:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 01:18:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 01:18:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:18:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:18:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 01:18:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 01:18:08,042 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:18:08,042 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 01:18:08,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:18:08 BoogieIcfgContainer [2018-12-09 01:18:08,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:18:08,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:18:08,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:18:08,045 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:18:08,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:18:07" (1/3) ... [2018-12-09 01:18:08,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6063cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:18:08, skipping insertion in model container [2018-12-09 01:18:08,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:18:07" (2/3) ... [2018-12-09 01:18:08,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6063cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:18:08, skipping insertion in model container [2018-12-09 01:18:08,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:18:08" (3/3) ... [2018-12-09 01:18:08,048 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35_false-unreach-call_false-termination.cil.c [2018-12-09 01:18:08,054 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:18:08,060 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:18:08,069 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:18:08,091 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:18:08,091 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:18:08,091 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:18:08,091 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:18:08,091 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:18:08,091 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:18:08,091 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:18:08,091 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:18:08,105 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2018-12-09 01:18:08,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 01:18:08,111 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:18:08,111 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:18:08,113 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:18:08,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:18:08,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1991914343, now seen corresponding path program 1 times [2018-12-09 01:18:08,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:18:08,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:18:08,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,145 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:18:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:18:08,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:18:08,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:18:08,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 01:18:08,261 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:18:08,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 01:18:08,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 01:18:08,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 01:18:08,273 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 2 states. [2018-12-09 01:18:08,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:18:08,294 INFO L93 Difference]: Finished difference Result 228 states and 283 transitions. [2018-12-09 01:18:08,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 01:18:08,295 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 01:18:08,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:18:08,301 INFO L225 Difference]: With dead ends: 228 [2018-12-09 01:18:08,301 INFO L226 Difference]: Without dead ends: 114 [2018-12-09 01:18:08,303 INFO L631 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 [2018-12-09 01:18:08,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-12-09 01:18:08,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-12-09 01:18:08,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-12-09 01:18:08,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2018-12-09 01:18:08,331 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2018-12-09 01:18:08,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:18:08,332 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2018-12-09 01:18:08,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 01:18:08,332 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2018-12-09 01:18:08,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 01:18:08,333 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:18:08,334 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:18:08,334 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:18:08,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:18:08,334 INFO L82 PathProgramCache]: Analyzing trace with hash 574224952, now seen corresponding path program 1 times [2018-12-09 01:18:08,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:18:08,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:18:08,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,335 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:18:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:18:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:18:08,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:18:08,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 01:18:08,387 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:18:08,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 01:18:08,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 01:18:08,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 01:18:08,389 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 3 states. [2018-12-09 01:18:08,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:18:08,399 INFO L93 Difference]: Finished difference Result 168 states and 195 transitions. [2018-12-09 01:18:08,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 01:18:08,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 01:18:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:18:08,401 INFO L225 Difference]: With dead ends: 168 [2018-12-09 01:18:08,401 INFO L226 Difference]: Without dead ends: 105 [2018-12-09 01:18:08,402 INFO L631 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 [2018-12-09 01:18:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-12-09 01:18:08,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-12-09 01:18:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-12-09 01:18:08,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2018-12-09 01:18:08,408 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2018-12-09 01:18:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:18:08,409 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2018-12-09 01:18:08,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 01:18:08,409 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2018-12-09 01:18:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 01:18:08,410 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:18:08,410 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:18:08,410 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:18:08,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:18:08,410 INFO L82 PathProgramCache]: Analyzing trace with hash -948464397, now seen corresponding path program 1 times [2018-12-09 01:18:08,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:18:08,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:18:08,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,412 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:18:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:18:08,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:18:08,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:18:08,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:18:08,499 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:18:08,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:18:08,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:18:08,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:18:08,500 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 7 states. [2018-12-09 01:18:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:18:08,683 INFO L93 Difference]: Finished difference Result 317 states and 381 transitions. [2018-12-09 01:18:08,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:18:08,683 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 01:18:08,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:18:08,685 INFO L225 Difference]: With dead ends: 317 [2018-12-09 01:18:08,686 INFO L226 Difference]: Without dead ends: 236 [2018-12-09 01:18:08,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:18:08,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-12-09 01:18:08,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 216. [2018-12-09 01:18:08,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-12-09 01:18:08,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 258 transitions. [2018-12-09 01:18:08,704 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 258 transitions. Word has length 51 [2018-12-09 01:18:08,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:18:08,704 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 258 transitions. [2018-12-09 01:18:08,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:18:08,704 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 258 transitions. [2018-12-09 01:18:08,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 01:18:08,705 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:18:08,705 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:18:08,706 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:18:08,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:18:08,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1506725307, now seen corresponding path program 1 times [2018-12-09 01:18:08,706 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:18:08,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:18:08,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,707 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:18:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:18:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:18:08,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:18:08,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 01:18:08,778 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:18:08,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 01:18:08,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 01:18:08,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 01:18:08,779 INFO L87 Difference]: Start difference. First operand 216 states and 258 transitions. Second operand 6 states. [2018-12-09 01:18:08,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:18:08,900 INFO L93 Difference]: Finished difference Result 585 states and 722 transitions. [2018-12-09 01:18:08,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 01:18:08,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-09 01:18:08,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:18:08,904 INFO L225 Difference]: With dead ends: 585 [2018-12-09 01:18:08,904 INFO L226 Difference]: Without dead ends: 393 [2018-12-09 01:18:08,905 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 01:18:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-12-09 01:18:08,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 387. [2018-12-09 01:18:08,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2018-12-09 01:18:08,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 466 transitions. [2018-12-09 01:18:08,934 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 466 transitions. Word has length 57 [2018-12-09 01:18:08,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:18:08,934 INFO L480 AbstractCegarLoop]: Abstraction has 387 states and 466 transitions. [2018-12-09 01:18:08,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 01:18:08,934 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 466 transitions. [2018-12-09 01:18:08,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 01:18:08,936 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:18:08,936 INFO L402 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, 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] [2018-12-09 01:18:08,936 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:18:08,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:18:08,936 INFO L82 PathProgramCache]: Analyzing trace with hash -2121847895, now seen corresponding path program 1 times [2018-12-09 01:18:08,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:18:08,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:18:08,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:08,937 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:18:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:18:08,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:18:08,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:18:08,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:18:08,997 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:18:08,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:18:08,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:18:08,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:18:08,998 INFO L87 Difference]: Start difference. First operand 387 states and 466 transitions. Second operand 7 states. [2018-12-09 01:18:09,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:18:09,325 INFO L93 Difference]: Finished difference Result 1024 states and 1323 transitions. [2018-12-09 01:18:09,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 01:18:09,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-12-09 01:18:09,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:18:09,329 INFO L225 Difference]: With dead ends: 1024 [2018-12-09 01:18:09,329 INFO L226 Difference]: Without dead ends: 661 [2018-12-09 01:18:09,330 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 01:18:09,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2018-12-09 01:18:09,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 577. [2018-12-09 01:18:09,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2018-12-09 01:18:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 697 transitions. [2018-12-09 01:18:09,367 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 697 transitions. Word has length 61 [2018-12-09 01:18:09,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:18:09,368 INFO L480 AbstractCegarLoop]: Abstraction has 577 states and 697 transitions. [2018-12-09 01:18:09,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:18:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 697 transitions. [2018-12-09 01:18:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 01:18:09,370 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:18:09,370 INFO L402 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:18:09,370 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:18:09,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:18:09,370 INFO L82 PathProgramCache]: Analyzing trace with hash -639951468, now seen corresponding path program 1 times [2018-12-09 01:18:09,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:18:09,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:09,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:18:09,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:09,371 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:18:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:18:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:18:09,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:18:09,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 01:18:09,443 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:18:09,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 01:18:09,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 01:18:09,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 01:18:09,443 INFO L87 Difference]: Start difference. First operand 577 states and 697 transitions. Second operand 6 states. [2018-12-09 01:18:09,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:18:09,493 INFO L93 Difference]: Finished difference Result 1150 states and 1412 transitions. [2018-12-09 01:18:09,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 01:18:09,493 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-12-09 01:18:09,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:18:09,496 INFO L225 Difference]: With dead ends: 1150 [2018-12-09 01:18:09,496 INFO L226 Difference]: Without dead ends: 597 [2018-12-09 01:18:09,497 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:18:09,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2018-12-09 01:18:09,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2018-12-09 01:18:09,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2018-12-09 01:18:09,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 717 transitions. [2018-12-09 01:18:09,526 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 717 transitions. Word has length 78 [2018-12-09 01:18:09,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:18:09,526 INFO L480 AbstractCegarLoop]: Abstraction has 597 states and 717 transitions. [2018-12-09 01:18:09,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 01:18:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 717 transitions. [2018-12-09 01:18:09,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 01:18:09,528 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:18:09,528 INFO L402 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:18:09,528 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:18:09,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:18:09,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1149424558, now seen corresponding path program 1 times [2018-12-09 01:18:09,529 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:18:09,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:09,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:18:09,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:09,530 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:18:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:18:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:18:09,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:18:09,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 01:18:09,603 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:18:09,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 01:18:09,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 01:18:09,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 01:18:09,603 INFO L87 Difference]: Start difference. First operand 597 states and 717 transitions. Second operand 8 states. [2018-12-09 01:18:09,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:18:09,632 INFO L93 Difference]: Finished difference Result 1198 states and 1482 transitions. [2018-12-09 01:18:09,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 01:18:09,632 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2018-12-09 01:18:09,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:18:09,634 INFO L225 Difference]: With dead ends: 1198 [2018-12-09 01:18:09,634 INFO L226 Difference]: Without dead ends: 625 [2018-12-09 01:18:09,635 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 01:18:09,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2018-12-09 01:18:09,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 613. [2018-12-09 01:18:09,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2018-12-09 01:18:09,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 733 transitions. [2018-12-09 01:18:09,652 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 733 transitions. Word has length 78 [2018-12-09 01:18:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:18:09,653 INFO L480 AbstractCegarLoop]: Abstraction has 613 states and 733 transitions. [2018-12-09 01:18:09,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 01:18:09,653 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 733 transitions. [2018-12-09 01:18:09,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 01:18:09,653 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:18:09,654 INFO L402 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:18:09,654 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:18:09,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:18:09,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1135438897, now seen corresponding path program 1 times [2018-12-09 01:18:09,654 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:18:09,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:09,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:18:09,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:09,655 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:18:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:18:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:18:09,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:18:09,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 01:18:09,691 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:18:09,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:18:09,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:18:09,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:18:09,692 INFO L87 Difference]: Start difference. First operand 613 states and 733 transitions. Second operand 4 states. [2018-12-09 01:18:09,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:18:09,815 INFO L93 Difference]: Finished difference Result 2015 states and 2532 transitions. [2018-12-09 01:18:09,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 01:18:09,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2018-12-09 01:18:09,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:18:09,819 INFO L225 Difference]: With dead ends: 2015 [2018-12-09 01:18:09,819 INFO L226 Difference]: Without dead ends: 1426 [2018-12-09 01:18:09,820 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:18:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2018-12-09 01:18:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1395. [2018-12-09 01:18:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1395 states. [2018-12-09 01:18:09,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1703 transitions. [2018-12-09 01:18:09,864 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1703 transitions. Word has length 78 [2018-12-09 01:18:09,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:18:09,865 INFO L480 AbstractCegarLoop]: Abstraction has 1395 states and 1703 transitions. [2018-12-09 01:18:09,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:18:09,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1703 transitions. [2018-12-09 01:18:09,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-09 01:18:09,866 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:18:09,866 INFO L402 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:18:09,866 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:18:09,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:18:09,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1795167797, now seen corresponding path program 1 times [2018-12-09 01:18:09,867 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:18:09,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:09,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:18:09,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:18:09,867 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:18:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:18:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:18:09,931 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 01:18:10,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:18:10 BoogieIcfgContainer [2018-12-09 01:18:10,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:18:10,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:18:10,011 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:18:10,011 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:18:10,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:18:08" (3/4) ... [2018-12-09 01:18:10,013 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 01:18:10,077 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d6feb499-59f5-4c94-ae60-d4a62bfb3270/bin-2019/utaipan/witness.graphml [2018-12-09 01:18:10,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:18:10,078 INFO L168 Benchmark]: Toolchain (without parser) took 2639.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:18:10,078 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:18:10,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-12-09 01:18:10,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.81 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:18:10,079 INFO L168 Benchmark]: Boogie Preprocessor took 20.94 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:18:10,079 INFO L168 Benchmark]: RCFGBuilder took 297.79 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-12-09 01:18:10,079 INFO L168 Benchmark]: TraceAbstraction took 1967.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -90.6 MB). Peak memory consumption was 215.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:18:10,080 INFO L168 Benchmark]: Witness Printer took 66.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:18:10,081 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -150.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.81 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.94 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 297.79 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1967.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -90.6 MB). Peak memory consumption was 215.7 MB. Max. memory is 11.5 GB. * Witness Printer took 66.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 145]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L250] int pumpRunning = 0; [L251] int systemActive = 1; [L455] int cleanupTimeShifts = 4; [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L528] int retValue_acc ; [L529] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L446] int retValue_acc ; [L449] retValue_acc = 1 [L450] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L535] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L535] tmp = valid_product() [L537] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L539] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L540] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L181] int splverifierCounter ; [L182] int tmp ; [L183] int tmp___0 ; [L184] int tmp___1 ; [L185] int tmp___2 ; [L188] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L190] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L192] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L198] tmp = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L202] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L202] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L208] tmp___0 = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L212] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L212] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L218] tmp___2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L235] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L257] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L264] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L286] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L289] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L383] int retValue_acc ; [L384] int tmp ; [L385] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L389] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L389] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L389] tmp = isHighWaterSensorDry() [L391] COND FALSE !(\read(tmp)) [L394] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L396] retValue_acc = tmp___0 [L397] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L291] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] tmp = isHighWaterLevel() [L293] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L295] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L314] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L295] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L266] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L272] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L152] int tmp ; [L153] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L157] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] tmp = isMethaneLevelCritical() [L159] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L161] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L338] int retValue_acc ; [L341] retValue_acc = pumpRunning [L342] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L161] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L161] tmp___0 = isPumpRunning() [L163] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L165] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L145] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 127 locations, 1 error locations. UNSAFE Result, 1.9s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1103 SDtfs, 594 SDslu, 2653 SDs, 0 SdLazy, 724 SolverSat, 102 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1395occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 153 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 52092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...