./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product50_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_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product50_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/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 63231100df91d767f63e82b83b0d6c2eaec3a983 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 19:43:43,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:43:43,100 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:43:43,106 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:43:43,106 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:43:43,107 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:43:43,107 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:43:43,108 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:43:43,109 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:43:43,109 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:43:43,110 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:43:43,110 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:43:43,110 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:43:43,111 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:43:43,111 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:43:43,112 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:43:43,112 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:43:43,113 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:43:43,114 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:43:43,115 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:43:43,115 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:43:43,116 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:43:43,117 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:43:43,117 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:43:43,117 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:43:43,117 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:43:43,118 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:43:43,118 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:43:43,119 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:43:43,119 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:43:43,119 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:43:43,120 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:43:43,120 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:43:43,120 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:43:43,120 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:43:43,121 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:43:43,121 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:43:43,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:43:43,128 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:43:43,129 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:43:43,129 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:43:43,129 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:43:43,129 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:43:43,129 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:43:43,129 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:43:43,129 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:43:43,130 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:43:43,130 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:43:43,130 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:43:43,130 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:43:43,130 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:43:43,130 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:43:43,130 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:43:43,130 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:43:43,131 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:43:43,131 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:43:43,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:43:43,132 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:43:43,132 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:43:43,132 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:43:43,132 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:43:43,132 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:43:43,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:43:43,132 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:43:43,132 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_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/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 -> 63231100df91d767f63e82b83b0d6c2eaec3a983 [2018-12-09 19:43:43,149 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:43:43,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:43:43,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:43:43,159 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:43:43,159 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:43:43,159 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product50_false-unreach-call_false-termination.cil.c [2018-12-09 19:43:43,193 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/data/9ad9f73c0/049025b77b294ed192595ce41b99a56b/FLAG9401712a4 [2018-12-09 19:43:43,558 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:43:43,559 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/sv-benchmarks/c/product-lines/minepump_spec1_product50_false-unreach-call_false-termination.cil.c [2018-12-09 19:43:43,566 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/data/9ad9f73c0/049025b77b294ed192595ce41b99a56b/FLAG9401712a4 [2018-12-09 19:43:43,931 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/data/9ad9f73c0/049025b77b294ed192595ce41b99a56b [2018-12-09 19:43:43,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:43:43,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:43:43,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:43:43,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:43:43,937 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:43:43,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:43" (1/1) ... [2018-12-09 19:43:43,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53463ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:43, skipping insertion in model container [2018-12-09 19:43:43,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:43" (1/1) ... [2018-12-09 19:43:43,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:43:43,964 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:43:44,116 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:43:44,124 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:43:44,198 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:43:44,213 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:43:44,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44 WrapperNode [2018-12-09 19:43:44,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:43:44,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:43:44,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:43:44,214 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:43:44,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... [2018-12-09 19:43:44,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... [2018-12-09 19:43:44,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:43:44,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:43:44,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:43:44,234 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:43:44,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... [2018-12-09 19:43:44,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... [2018-12-09 19:43:44,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... [2018-12-09 19:43:44,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... [2018-12-09 19:43:44,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... [2018-12-09 19:43:44,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... [2018-12-09 19:43:44,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... [2018-12-09 19:43:44,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:43:44,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:43:44,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:43:44,256 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:43:44,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/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 19:43:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 19:43:44,288 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 19:43:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:43:44,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:43:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 19:43:44,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 19:43:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:43:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 19:43:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 19:43:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 19:43:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 19:43:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 19:43:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 19:43:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 19:43:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 19:43:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 19:43:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 19:43:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 19:43:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 19:43:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 19:43:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 19:43:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 19:43:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 19:43:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 19:43:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 19:43:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 19:43:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 19:43:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 19:43:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 19:43:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 19:43:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 19:43:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:43:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 19:43:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 19:43:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 19:43:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 19:43:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 19:43:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 19:43:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 19:43:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 19:43:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 19:43:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 19:43:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 19:43:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 19:43:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 19:43:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 19:43:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 19:43:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 19:43:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:43:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:43:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 19:43:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 19:43:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 19:43:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 19:43:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:43:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:43:44,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 19:43:44,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 19:43:44,592 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:43:44,592 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 19:43:44,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:44 BoogieIcfgContainer [2018-12-09 19:43:44,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:43:44,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:43:44,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:43:44,595 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:43:44,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:43:43" (1/3) ... [2018-12-09 19:43:44,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9550c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:44, skipping insertion in model container [2018-12-09 19:43:44,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:44" (2/3) ... [2018-12-09 19:43:44,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9550c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:44, skipping insertion in model container [2018-12-09 19:43:44,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:44" (3/3) ... [2018-12-09 19:43:44,598 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50_false-unreach-call_false-termination.cil.c [2018-12-09 19:43:44,604 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:43:44,609 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:43:44,618 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:43:44,636 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:43:44,636 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:43:44,636 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:43:44,636 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:43:44,637 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:43:44,637 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:43:44,637 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:43:44,637 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:43:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2018-12-09 19:43:44,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 19:43:44,654 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:44,654 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] [2018-12-09 19:43:44,656 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:44,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:44,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1889428254, now seen corresponding path program 1 times [2018-12-09 19:43:44,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:44,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:44,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:44,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:44,691 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:44,821 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 19:43:44,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:44,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:43:44,822 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:44,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:43:44,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:43:44,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:43:44,834 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2018-12-09 19:43:44,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:44,856 INFO L93 Difference]: Finished difference Result 264 states and 325 transitions. [2018-12-09 19:43:44,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:43:44,857 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 19:43:44,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:44,863 INFO L225 Difference]: With dead ends: 264 [2018-12-09 19:43:44,863 INFO L226 Difference]: Without dead ends: 132 [2018-12-09 19:43:44,866 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 19:43:44,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-12-09 19:43:44,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-12-09 19:43:44,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-12-09 19:43:44,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2018-12-09 19:43:44,894 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 46 [2018-12-09 19:43:44,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:44,895 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2018-12-09 19:43:44,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:43:44,895 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2018-12-09 19:43:44,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 19:43:44,897 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:44,898 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 19:43:44,898 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:44,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:44,898 INFO L82 PathProgramCache]: Analyzing trace with hash -868981089, now seen corresponding path program 1 times [2018-12-09 19:43:44,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:44,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:44,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:44,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:44,899 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:44,958 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 19:43:44,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:44,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:43:44,959 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:44,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:43:44,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:43:44,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:43:44,961 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2018-12-09 19:43:44,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:44,978 INFO L93 Difference]: Finished difference Result 209 states and 243 transitions. [2018-12-09 19:43:44,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:43:44,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 19:43:44,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:44,980 INFO L225 Difference]: With dead ends: 209 [2018-12-09 19:43:44,980 INFO L226 Difference]: Without dead ends: 123 [2018-12-09 19:43:44,981 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 19:43:44,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-12-09 19:43:44,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-12-09 19:43:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-12-09 19:43:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2018-12-09 19:43:44,989 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 47 [2018-12-09 19:43:44,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:44,990 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2018-12-09 19:43:44,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:43:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2018-12-09 19:43:44,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 19:43:44,991 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:44,991 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] [2018-12-09 19:43:44,991 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:44,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:44,991 INFO L82 PathProgramCache]: Analyzing trace with hash 641284078, now seen corresponding path program 1 times [2018-12-09 19:43:44,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:44,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:44,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:44,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:44,992 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:45,057 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 19:43:45,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:45,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:43:45,057 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:45,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:43:45,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:43:45,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:43:45,058 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 3 states. [2018-12-09 19:43:45,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:45,074 INFO L93 Difference]: Finished difference Result 222 states and 261 transitions. [2018-12-09 19:43:45,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:43:45,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-12-09 19:43:45,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:45,076 INFO L225 Difference]: With dead ends: 222 [2018-12-09 19:43:45,076 INFO L226 Difference]: Without dead ends: 123 [2018-12-09 19:43:45,077 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 19:43:45,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-12-09 19:43:45,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-12-09 19:43:45,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-12-09 19:43:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2018-12-09 19:43:45,086 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 52 [2018-12-09 19:43:45,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:45,087 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2018-12-09 19:43:45,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:43:45,087 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2018-12-09 19:43:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-09 19:43:45,088 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:45,089 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] [2018-12-09 19:43:45,089 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:45,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:45,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1095501848, now seen corresponding path program 1 times [2018-12-09 19:43:45,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:45,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:45,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:45,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:45,090 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:45,159 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 19:43:45,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:45,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:43:45,160 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:45,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:43:45,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:43:45,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:43:45,161 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand 5 states. [2018-12-09 19:43:45,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:45,443 INFO L93 Difference]: Finished difference Result 321 states and 385 transitions. [2018-12-09 19:43:45,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:43:45,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-12-09 19:43:45,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:45,445 INFO L225 Difference]: With dead ends: 321 [2018-12-09 19:43:45,445 INFO L226 Difference]: Without dead ends: 222 [2018-12-09 19:43:45,446 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:43:45,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-12-09 19:43:45,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 203. [2018-12-09 19:43:45,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-12-09 19:43:45,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2018-12-09 19:43:45,466 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 65 [2018-12-09 19:43:45,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:45,467 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2018-12-09 19:43:45,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:43:45,467 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2018-12-09 19:43:45,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 19:43:45,469 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:45,469 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] [2018-12-09 19:43:45,469 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:45,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:45,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1883313699, now seen corresponding path program 1 times [2018-12-09 19:43:45,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:45,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:45,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:45,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:45,470 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:45,530 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 19:43:45,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:45,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:43:45,530 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:45,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:43:45,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:43:45,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:43:45,531 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand 6 states. [2018-12-09 19:43:45,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:45,665 INFO L93 Difference]: Finished difference Result 546 states and 640 transitions. [2018-12-09 19:43:45,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:43:45,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2018-12-09 19:43:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:45,667 INFO L225 Difference]: With dead ends: 546 [2018-12-09 19:43:45,667 INFO L226 Difference]: Without dead ends: 367 [2018-12-09 19:43:45,668 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 19:43:45,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2018-12-09 19:43:45,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 361. [2018-12-09 19:43:45,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-12-09 19:43:45,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 410 transitions. [2018-12-09 19:43:45,684 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 410 transitions. Word has length 79 [2018-12-09 19:43:45,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:45,685 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 410 transitions. [2018-12-09 19:43:45,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:43:45,685 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 410 transitions. [2018-12-09 19:43:45,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 19:43:45,686 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:45,686 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, 1] [2018-12-09 19:43:45,686 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:45,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:45,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1517637671, now seen corresponding path program 1 times [2018-12-09 19:43:45,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:45,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:45,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:45,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:45,687 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:45,744 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 19:43:45,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:45,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:43:45,744 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:45,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:43:45,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:43:45,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:43:45,745 INFO L87 Difference]: Start difference. First operand 361 states and 410 transitions. Second operand 7 states. [2018-12-09 19:43:46,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:46,019 INFO L93 Difference]: Finished difference Result 396 states and 464 transitions. [2018-12-09 19:43:46,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:43:46,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2018-12-09 19:43:46,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:46,021 INFO L225 Difference]: With dead ends: 396 [2018-12-09 19:43:46,022 INFO L226 Difference]: Without dead ends: 393 [2018-12-09 19:43:46,022 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 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 19:43:46,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-12-09 19:43:46,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 361. [2018-12-09 19:43:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2018-12-09 19:43:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 409 transitions. [2018-12-09 19:43:46,035 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 409 transitions. Word has length 83 [2018-12-09 19:43:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:46,036 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 409 transitions. [2018-12-09 19:43:46,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:43:46,036 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 409 transitions. [2018-12-09 19:43:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 19:43:46,037 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:46,037 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, 1, 1] [2018-12-09 19:43:46,037 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:46,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:46,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1915616884, now seen corresponding path program 1 times [2018-12-09 19:43:46,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:46,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:46,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:46,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:46,039 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:46,075 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 19:43:46,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:46,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:43:46,075 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:46,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:43:46,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:43:46,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:43:46,076 INFO L87 Difference]: Start difference. First operand 361 states and 409 transitions. Second operand 6 states. [2018-12-09 19:43:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:46,102 INFO L93 Difference]: Finished difference Result 708 states and 814 transitions. [2018-12-09 19:43:46,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:43:46,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-12-09 19:43:46,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:46,104 INFO L225 Difference]: With dead ends: 708 [2018-12-09 19:43:46,104 INFO L226 Difference]: Without dead ends: 371 [2018-12-09 19:43:46,105 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 19:43:46,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-12-09 19:43:46,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2018-12-09 19:43:46,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2018-12-09 19:43:46,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 419 transitions. [2018-12-09 19:43:46,116 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 419 transitions. Word has length 84 [2018-12-09 19:43:46,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:46,117 INFO L480 AbstractCegarLoop]: Abstraction has 371 states and 419 transitions. [2018-12-09 19:43:46,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:43:46,117 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 419 transitions. [2018-12-09 19:43:46,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 19:43:46,118 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:46,118 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, 1, 1] [2018-12-09 19:43:46,118 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:46,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:46,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1892984630, now seen corresponding path program 1 times [2018-12-09 19:43:46,118 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:46,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:46,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:46,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:46,119 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:46,175 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 19:43:46,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:46,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 19:43:46,175 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:46,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:43:46,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:43:46,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:43:46,176 INFO L87 Difference]: Start difference. First operand 371 states and 419 transitions. Second operand 8 states. [2018-12-09 19:43:46,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:46,205 INFO L93 Difference]: Finished difference Result 732 states and 848 transitions. [2018-12-09 19:43:46,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:43:46,206 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2018-12-09 19:43:46,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:46,207 INFO L225 Difference]: With dead ends: 732 [2018-12-09 19:43:46,208 INFO L226 Difference]: Without dead ends: 385 [2018-12-09 19:43:46,209 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 19:43:46,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2018-12-09 19:43:46,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 379. [2018-12-09 19:43:46,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-12-09 19:43:46,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 427 transitions. [2018-12-09 19:43:46,227 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 427 transitions. Word has length 84 [2018-12-09 19:43:46,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:46,227 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 427 transitions. [2018-12-09 19:43:46,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:43:46,227 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 427 transitions. [2018-12-09 19:43:46,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 19:43:46,228 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:46,229 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, 1, 1] [2018-12-09 19:43:46,229 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:46,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:46,229 INFO L82 PathProgramCache]: Analyzing trace with hash -867492631, now seen corresponding path program 1 times [2018-12-09 19:43:46,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:46,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:46,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:46,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:46,230 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:43:46,294 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 19:43:46,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:43:46,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:43:46,295 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:43:46,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:43:46,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:43:46,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:43:46,296 INFO L87 Difference]: Start difference. First operand 379 states and 427 transitions. Second operand 4 states. [2018-12-09 19:43:46,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:43:46,413 INFO L93 Difference]: Finished difference Result 1153 states and 1368 transitions. [2018-12-09 19:43:46,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:43:46,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2018-12-09 19:43:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:43:46,422 INFO L225 Difference]: With dead ends: 1153 [2018-12-09 19:43:46,422 INFO L226 Difference]: Without dead ends: 798 [2018-12-09 19:43:46,423 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 19:43:46,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2018-12-09 19:43:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 511. [2018-12-09 19:43:46,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2018-12-09 19:43:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 572 transitions. [2018-12-09 19:43:46,456 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 572 transitions. Word has length 84 [2018-12-09 19:43:46,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:43:46,456 INFO L480 AbstractCegarLoop]: Abstraction has 511 states and 572 transitions. [2018-12-09 19:43:46,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:43:46,456 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 572 transitions. [2018-12-09 19:43:46,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-09 19:43:46,458 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:43:46,458 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, 1, 1, 1, 1, 1, 1] [2018-12-09 19:43:46,458 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:43:46,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:43:46,458 INFO L82 PathProgramCache]: Analyzing trace with hash 959625411, now seen corresponding path program 1 times [2018-12-09 19:43:46,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:43:46,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:46,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:43:46,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:43:46,459 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:43:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:43:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:43:46,557 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:43:46,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:43:46 BoogieIcfgContainer [2018-12-09 19:43:46,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:43:46,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:43:46,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:43:46,642 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:43:46,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:44" (3/4) ... [2018-12-09 19:43:46,644 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 19:43:46,729 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_36e0b75d-8ce6-4ff8-8f36-d1e7f7549443/bin-2019/utaipan/witness.graphml [2018-12-09 19:43:46,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:43:46,730 INFO L168 Benchmark]: Toolchain (without parser) took 2796.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -107.2 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:46,731 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:46,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -125.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:46,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.12 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. [2018-12-09 19:43:46,731 INFO L168 Benchmark]: Boogie Preprocessor took 21.26 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. [2018-12-09 19:43:46,731 INFO L168 Benchmark]: RCFGBuilder took 337.01 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:46,732 INFO L168 Benchmark]: TraceAbstraction took 2047.97 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -66.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:43:46,732 INFO L168 Benchmark]: Witness Printer took 87.92 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:43:46,733 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -125.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.12 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. * Boogie Preprocessor took 21.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 337.01 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2047.97 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -66.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 87.92 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 388]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L258] int retValue_acc ; [L259] 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] [L263] 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] [L264] 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] [L265] 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] [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] 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] [L265] 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] [L265] tmp = valid_product() [L267] 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] [L269] 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] [L270] 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] [L249] 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] [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] 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] [L327] 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] [L329] 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] [L335] tmp = __VERIFIER_nondet_int() [L337] 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] [L339] 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] [L94] COND TRUE waterLevel < 2 [L95] 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] [L339] 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] [L345] tmp___0 = __VERIFIER_nondet_int() [L347] 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] [L349] 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] [L106] COND FALSE !(\read(methaneLevelCritical)) [L109] 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] [L349] 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] [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND FALSE !(\read(tmp___2)) [L363] tmp___1 = __VERIFIER_nondet_int() [L365] COND TRUE \read(tmp___1) 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___1=1, tmp___2=0, waterLevel=2] [L372] 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] [L402] 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] [L409] 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] [L411] 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] [L457] 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] [L460] 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] [L475] CALL processEnvironment__wrappee__highWaterSensor() 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] [L431] 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] [L434] 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] [L436] 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] [L554] int retValue_acc ; [L555] int tmp ; [L556] 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] [L560] 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] [L156] 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] [L159] COND FALSE !(waterLevel < 2) [L163] retValue_acc = 0 [L164] 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] [L560] 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] [L560] tmp = isHighWaterSensorDry() [L562] COND FALSE !(\read(tmp)) [L565] 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] [L567] retValue_acc = tmp___0 [L568] 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] [L436] 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] [L436] tmp = isHighWaterLevel() [L438] 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] [L440] 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] [L485] 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] [L440] 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] [L475] RET processEnvironment__wrappee__highWaterSensor() 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] [L411] 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] [L417] 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] [L44] int tmp ; [L45] 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] [L49] 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] [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] 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] [L49] 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] [L49] tmp = isMethaneLevelCritical() [L51] 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] [L53] 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] [L509] int retValue_acc ; [L512] retValue_acc = pumpRunning [L513] 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] [L53] 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] [L53] tmp___0 = isPumpRunning() [L55] 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] [L57] 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] [L388] __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 28 procedures, 145 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1396 SDtfs, 769 SDslu, 2589 SDs, 0 SdLazy, 885 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=9, 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, 9 MinimizatonAttempts, 350 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 76724 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...