./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/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 96fab9ebc0a7c1449817f0fde656dfd4d62824fd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:31:38,596 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:31:38,597 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:31:38,604 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:31:38,604 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:31:38,605 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:31:38,606 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:31:38,607 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:31:38,608 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:31:38,609 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:31:38,610 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:31:38,610 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:31:38,611 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:31:38,611 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:31:38,612 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:31:38,613 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:31:38,614 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:31:38,615 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:31:38,616 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:31:38,618 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:31:38,619 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:31:38,619 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:31:38,621 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:31:38,621 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:31:38,622 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:31:38,622 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:31:38,623 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:31:38,623 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:31:38,624 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:31:38,624 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:31:38,624 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:31:38,625 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:31:38,625 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:31:38,625 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:31:38,625 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:31:38,626 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:31:38,626 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:31:38,634 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:31:38,634 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:31:38,634 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:31:38,635 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:31:38,635 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:31:38,635 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:31:38,635 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:31:38,635 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:31:38,635 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:31:38,635 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:31:38,636 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:31:38,636 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:31:38,636 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:31:38,636 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:31:38,637 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:31:38,637 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:31:38,637 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:31:38,637 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:31:38,637 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:31:38,637 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:31:38,637 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:31:38,637 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:31:38,638 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:31:38,638 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:31:38,638 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:31:38,638 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:31:38,638 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:31:38,638 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:31:38,638 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:31:38,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:31:38,639 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:31:38,639 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:31:38,639 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:31:38,639 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:31:38,639 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:31:38,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:31:38,640 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:31:38,640 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_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/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 -> 96fab9ebc0a7c1449817f0fde656dfd4d62824fd [2018-11-18 13:31:38,663 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:31:38,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:31:38,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:31:38,674 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:31:38,674 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:31:38,675 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c [2018-11-18 13:31:38,707 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/data/d5beb2bc1/3bdf7585663f4d2ab36204a02f1abbbf/FLAG13a694bf8 [2018-11-18 13:31:39,134 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:31:39,135 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/sv-benchmarks/c/product-lines/minepump_spec4_product50_true-unreach-call_false-termination.cil.c [2018-11-18 13:31:39,141 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/data/d5beb2bc1/3bdf7585663f4d2ab36204a02f1abbbf/FLAG13a694bf8 [2018-11-18 13:31:39,150 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/data/d5beb2bc1/3bdf7585663f4d2ab36204a02f1abbbf [2018-11-18 13:31:39,152 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:31:39,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:31:39,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:31:39,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:31:39,156 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:31:39,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e2c184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39, skipping insertion in model container [2018-11-18 13:31:39,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:31:39,194 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:31:39,378 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:31:39,387 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:31:39,484 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:31:39,501 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:31:39,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39 WrapperNode [2018-11-18 13:31:39,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:31:39,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:31:39,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:31:39,502 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:31:39,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:31:39,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:31:39,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:31:39,524 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:31:39,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... [2018-11-18 13:31:39,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:31:39,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:31:39,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:31:39,550 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:31:39,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/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 [2018-11-18 13:31:39,596 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 13:31:39,596 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 13:31:39,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-18 13:31:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-18 13:31:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:31:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:31:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 13:31:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 13:31:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:31:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 13:31:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 13:31:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 13:31:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 13:31:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 13:31:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 13:31:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 13:31:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 13:31:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 13:31:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 13:31:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 13:31:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 13:31:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 13:31:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 13:31:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 13:31:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 13:31:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 13:31:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 13:31:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 13:31:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 13:31:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 13:31:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 13:31:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 13:31:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 13:31:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-18 13:31:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-18 13:31:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 13:31:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 13:31:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 13:31:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 13:31:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 13:31:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 13:31:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 13:31:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 13:31:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 13:31:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 13:31:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 13:31:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 13:31:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 13:31:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 13:31:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:31:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:31:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 13:31:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 13:31:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 13:31:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 13:31:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:31:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:31:40,103 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:31:40,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:31:40 BoogieIcfgContainer [2018-11-18 13:31:40,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:31:40,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:31:40,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:31:40,107 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:31:40,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:31:39" (1/3) ... [2018-11-18 13:31:40,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695e5b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:31:40, skipping insertion in model container [2018-11-18 13:31:40,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:31:39" (2/3) ... [2018-11-18 13:31:40,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695e5b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:31:40, skipping insertion in model container [2018-11-18 13:31:40,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:31:40" (3/3) ... [2018-11-18 13:31:40,110 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50_true-unreach-call_false-termination.cil.c [2018-11-18 13:31:40,119 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:31:40,126 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:31:40,140 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:31:40,168 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:31:40,168 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:31:40,168 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:31:40,168 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:31:40,168 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:31:40,169 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:31:40,169 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:31:40,169 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:31:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-11-18 13:31:40,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 13:31:40,194 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:40,194 INFO L375 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] [2018-11-18 13:31:40,197 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:40,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:40,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1967113073, now seen corresponding path program 1 times [2018-11-18 13:31:40,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:40,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:40,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:40,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:40,237 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:40,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:31:40,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:31:40,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:31:40,401 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:40,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:31:40,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:31:40,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:31:40,414 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-11-18 13:31:40,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:40,447 INFO L93 Difference]: Finished difference Result 268 states and 329 transitions. [2018-11-18 13:31:40,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:31:40,448 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 13:31:40,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:40,459 INFO L225 Difference]: With dead ends: 268 [2018-11-18 13:31:40,459 INFO L226 Difference]: Without dead ends: 134 [2018-11-18 13:31:40,463 INFO L604 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 [2018-11-18 13:31:40,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-18 13:31:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-11-18 13:31:40,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-18 13:31:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2018-11-18 13:31:40,509 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 46 [2018-11-18 13:31:40,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:40,509 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2018-11-18 13:31:40,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:31:40,509 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2018-11-18 13:31:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 13:31:40,512 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:40,512 INFO L375 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] [2018-11-18 13:31:40,512 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:40,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:40,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1252174680, now seen corresponding path program 1 times [2018-11-18 13:31:40,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:40,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:40,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:40,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:40,514 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:31:40,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:31:40,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:31:40,600 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:40,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:31:40,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:31:40,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:31:40,602 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 3 states. [2018-11-18 13:31:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:40,622 INFO L93 Difference]: Finished difference Result 211 states and 245 transitions. [2018-11-18 13:31:40,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:31:40,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 13:31:40,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:40,625 INFO L225 Difference]: With dead ends: 211 [2018-11-18 13:31:40,625 INFO L226 Difference]: Without dead ends: 124 [2018-11-18 13:31:40,626 INFO L604 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 [2018-11-18 13:31:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-11-18 13:31:40,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-11-18 13:31:40,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-11-18 13:31:40,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2018-11-18 13:31:40,637 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 48 [2018-11-18 13:31:40,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:40,637 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2018-11-18 13:31:40,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:31:40,638 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2018-11-18 13:31:40,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 13:31:40,638 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:40,638 INFO L375 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] [2018-11-18 13:31:40,639 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:40,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:40,639 INFO L82 PathProgramCache]: Analyzing trace with hash -2096463025, now seen corresponding path program 1 times [2018-11-18 13:31:40,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:40,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:40,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:40,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:40,640 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:31:40,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:31:40,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 13:31:40,752 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:40,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 13:31:40,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 13:31:40,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:31:40,753 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 7 states. [2018-11-18 13:31:41,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:41,035 INFO L93 Difference]: Finished difference Result 224 states and 263 transitions. [2018-11-18 13:31:41,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:31:41,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-11-18 13:31:41,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:41,037 INFO L225 Difference]: With dead ends: 224 [2018-11-18 13:31:41,037 INFO L226 Difference]: Without dead ends: 124 [2018-11-18 13:31:41,038 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:31:41,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-11-18 13:31:41,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-11-18 13:31:41,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-11-18 13:31:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2018-11-18 13:31:41,049 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 53 [2018-11-18 13:31:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:41,050 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2018-11-18 13:31:41,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 13:31:41,050 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2018-11-18 13:31:41,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 13:31:41,052 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:41,052 INFO L375 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] [2018-11-18 13:31:41,052 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:41,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:41,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1992311434, now seen corresponding path program 1 times [2018-11-18 13:31:41,053 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:41,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:41,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:41,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:41,054 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:31:41,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:31:41,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:31:41,141 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:41,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:31:41,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:31:41,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:31:41,142 INFO L87 Difference]: Start difference. First operand 124 states and 142 transitions. Second operand 5 states. [2018-11-18 13:31:41,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:41,438 INFO L93 Difference]: Finished difference Result 325 states and 389 transitions. [2018-11-18 13:31:41,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:31:41,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2018-11-18 13:31:41,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:41,440 INFO L225 Difference]: With dead ends: 325 [2018-11-18 13:31:41,440 INFO L226 Difference]: Without dead ends: 225 [2018-11-18 13:31:41,441 INFO L604 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 [2018-11-18 13:31:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-11-18 13:31:41,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 205. [2018-11-18 13:31:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-11-18 13:31:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 232 transitions. [2018-11-18 13:31:41,463 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 232 transitions. Word has length 66 [2018-11-18 13:31:41,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:41,463 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 232 transitions. [2018-11-18 13:31:41,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:31:41,463 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 232 transitions. [2018-11-18 13:31:41,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 13:31:41,465 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:41,465 INFO L375 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] [2018-11-18 13:31:41,466 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:41,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:41,466 INFO L82 PathProgramCache]: Analyzing trace with hash -919017094, now seen corresponding path program 1 times [2018-11-18 13:31:41,466 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:41,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:41,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:41,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:41,467 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:31:41,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:31:41,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 13:31:41,575 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:41,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:31:41,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:31:41,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:31:41,576 INFO L87 Difference]: Start difference. First operand 205 states and 232 transitions. Second operand 10 states. [2018-11-18 13:31:42,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:42,047 INFO L93 Difference]: Finished difference Result 658 states and 812 transitions. [2018-11-18 13:31:42,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 13:31:42,049 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2018-11-18 13:31:42,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:42,052 INFO L225 Difference]: With dead ends: 658 [2018-11-18 13:31:42,052 INFO L226 Difference]: Without dead ends: 477 [2018-11-18 13:31:42,054 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-18 13:31:42,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2018-11-18 13:31:42,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 467. [2018-11-18 13:31:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2018-11-18 13:31:42,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 547 transitions. [2018-11-18 13:31:42,088 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 547 transitions. Word has length 80 [2018-11-18 13:31:42,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:42,088 INFO L480 AbstractCegarLoop]: Abstraction has 467 states and 547 transitions. [2018-11-18 13:31:42,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:31:42,089 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 547 transitions. [2018-11-18 13:31:42,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 13:31:42,092 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:42,092 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:42,092 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:42,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:42,092 INFO L82 PathProgramCache]: Analyzing trace with hash 492764702, now seen corresponding path program 1 times [2018-11-18 13:31:42,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:42,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:42,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:42,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:42,093 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:42,169 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 13:31:42,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:42,170 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:31:42,171 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-11-18 13:31:42,172 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [54], [55], [58], [60], [63], [70], [73], [74], [77], [79], [81], [85], [91], [95], [99], [102], [107], [113], [115], [121], [124], [134], [135], [136], [137], [138], [139], [140], [142], [145], [149], [150], [151], [152], [162], [165], [169], [175], [205], [209], [210], [216], [219], [221], [224], [234], [237], [241], [242], [245], [246], [247], [248], [249], [251], [252], [253], [254], [255], [256], [257], [258], [259], [261], [262], [263], [265], [266], [267], [268], [271], [272], [273], [274], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [295], [296], [297], [299], [300], [301], [302] [2018-11-18 13:31:42,207 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:31:42,207 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:31:42,573 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:31:42,574 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Performed 1973 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1973 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 13:31:42,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:42,593 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:31:42,861 INFO L227 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 97.28% of their original sizes. [2018-11-18 13:31:42,861 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:31:42,889 INFO L415 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2018-11-18 13:31:42,889 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:31:42,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:31:42,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-18 13:31:42,890 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:42,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:31:42,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:31:42,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:31:42,891 INFO L87 Difference]: Start difference. First operand 467 states and 547 transitions. Second operand 8 states. [2018-11-18 13:31:44,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:44,212 INFO L93 Difference]: Finished difference Result 992 states and 1193 transitions. [2018-11-18 13:31:44,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:31:44,212 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 140 [2018-11-18 13:31:44,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:44,215 INFO L225 Difference]: With dead ends: 992 [2018-11-18 13:31:44,216 INFO L226 Difference]: Without dead ends: 655 [2018-11-18 13:31:44,217 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:31:44,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2018-11-18 13:31:44,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 637. [2018-11-18 13:31:44,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2018-11-18 13:31:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 745 transitions. [2018-11-18 13:31:44,246 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 745 transitions. Word has length 140 [2018-11-18 13:31:44,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:44,246 INFO L480 AbstractCegarLoop]: Abstraction has 637 states and 745 transitions. [2018-11-18 13:31:44,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:31:44,246 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 745 transitions. [2018-11-18 13:31:44,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 13:31:44,249 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:44,249 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:44,249 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:44,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:44,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1594504936, now seen corresponding path program 1 times [2018-11-18 13:31:44,250 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:44,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:44,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:44,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:44,251 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 13:31:44,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:44,326 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:31:44,326 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-18 13:31:44,326 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [54], [55], [58], [60], [63], [70], [73], [74], [77], [79], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [121], [124], [134], [135], [136], [137], [138], [139], [140], [142], [145], [149], [150], [151], [152], [162], [165], [169], [175], [205], [209], [210], [216], [219], [221], [224], [234], [237], [241], [242], [245], [246], [247], [248], [249], [251], [252], [253], [254], [255], [256], [257], [258], [259], [261], [262], [263], [265], [266], [267], [268], [271], [272], [273], [274], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [295], [296], [297], [299], [300], [301], [302] [2018-11-18 13:31:44,330 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:31:44,330 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:31:44,545 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:31:44,546 INFO L272 AbstractInterpreter]: Visited 64 different actions 94 times. Merged at 6 different actions 6 times. Never widened. Performed 4598 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4598 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 13:31:44,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:44,553 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:31:44,739 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 97.31% of their original sizes. [2018-11-18 13:31:44,739 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:31:44,858 INFO L415 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-11-18 13:31:44,858 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:31:44,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:31:44,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-18 13:31:44,859 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:44,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 13:31:44,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 13:31:44,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:31:44,860 INFO L87 Difference]: Start difference. First operand 637 states and 745 transitions. Second operand 16 states. [2018-11-18 13:31:47,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:47,710 INFO L93 Difference]: Finished difference Result 1172 states and 1388 transitions. [2018-11-18 13:31:47,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 13:31:47,710 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 136 [2018-11-18 13:31:47,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:47,712 INFO L225 Difference]: With dead ends: 1172 [2018-11-18 13:31:47,712 INFO L226 Difference]: Without dead ends: 559 [2018-11-18 13:31:47,713 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2018-11-18 13:31:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2018-11-18 13:31:47,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 533. [2018-11-18 13:31:47,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2018-11-18 13:31:47,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 617 transitions. [2018-11-18 13:31:47,740 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 617 transitions. Word has length 136 [2018-11-18 13:31:47,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:47,740 INFO L480 AbstractCegarLoop]: Abstraction has 533 states and 617 transitions. [2018-11-18 13:31:47,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 13:31:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 617 transitions. [2018-11-18 13:31:47,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 13:31:47,742 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:47,742 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:47,743 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:47,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:47,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1192297371, now seen corresponding path program 1 times [2018-11-18 13:31:47,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:47,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:47,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:47,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:47,744 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 13:31:47,858 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:47,858 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:31:47,858 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-18 13:31:47,859 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [53], [54], [55], [58], [60], [63], [70], [73], [74], [78], [79], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [121], [124], [134], [135], [136], [137], [138], [139], [140], [142], [145], [149], [150], [151], [152], [162], [165], [169], [175], [205], [209], [210], [216], [219], [221], [224], [234], [237], [241], [242], [245], [246], [247], [248], [249], [251], [252], [253], [254], [255], [256], [257], [258], [259], [261], [262], [263], [265], [266], [267], [268], [271], [272], [273], [274], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [295], [296], [297], [299], [300], [301], [302] [2018-11-18 13:31:47,861 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:31:47,862 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:31:48,018 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 13:31:48,018 INFO L272 AbstractInterpreter]: Visited 59 different actions 80 times. Merged at 6 different actions 6 times. Never widened. Performed 4552 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4552 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 13:31:48,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:48,025 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 13:31:48,193 INFO L227 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 97.28% of their original sizes. [2018-11-18 13:31:48,193 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 13:31:48,232 INFO L415 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-11-18 13:31:48,232 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 13:31:48,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:31:48,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-11-18 13:31:48,233 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:48,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 13:31:48,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 13:31:48,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:31:48,234 INFO L87 Difference]: Start difference. First operand 533 states and 617 transitions. Second operand 12 states. [2018-11-18 13:31:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:49,716 INFO L93 Difference]: Finished difference Result 1006 states and 1199 transitions. [2018-11-18 13:31:49,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 13:31:49,716 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 136 [2018-11-18 13:31:49,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:49,719 INFO L225 Difference]: With dead ends: 1006 [2018-11-18 13:31:49,719 INFO L226 Difference]: Without dead ends: 559 [2018-11-18 13:31:49,720 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-11-18 13:31:49,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2018-11-18 13:31:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 533. [2018-11-18 13:31:49,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2018-11-18 13:31:49,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 616 transitions. [2018-11-18 13:31:49,746 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 616 transitions. Word has length 136 [2018-11-18 13:31:49,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:49,746 INFO L480 AbstractCegarLoop]: Abstraction has 533 states and 616 transitions. [2018-11-18 13:31:49,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 13:31:49,747 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 616 transitions. [2018-11-18 13:31:49,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 13:31:49,748 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:49,748 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:49,748 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:49,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:49,749 INFO L82 PathProgramCache]: Analyzing trace with hash 2044831847, now seen corresponding path program 1 times [2018-11-18 13:31:49,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:49,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:49,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:49,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:49,749 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-18 13:31:49,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:31:49,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:31:49,823 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:49,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:31:49,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:31:49,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:31:49,824 INFO L87 Difference]: Start difference. First operand 533 states and 616 transitions. Second operand 6 states. [2018-11-18 13:31:49,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:49,857 INFO L93 Difference]: Finished difference Result 880 states and 1031 transitions. [2018-11-18 13:31:49,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:31:49,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-11-18 13:31:49,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:49,860 INFO L225 Difference]: With dead ends: 880 [2018-11-18 13:31:49,861 INFO L226 Difference]: Without dead ends: 543 [2018-11-18 13:31:49,862 INFO L604 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 [2018-11-18 13:31:49,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2018-11-18 13:31:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2018-11-18 13:31:49,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2018-11-18 13:31:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 626 transitions. [2018-11-18 13:31:49,885 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 626 transitions. Word has length 136 [2018-11-18 13:31:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:49,885 INFO L480 AbstractCegarLoop]: Abstraction has 543 states and 626 transitions. [2018-11-18 13:31:49,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:31:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 626 transitions. [2018-11-18 13:31:49,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 13:31:49,887 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:49,887 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:49,887 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:49,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:49,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1535358757, now seen corresponding path program 1 times [2018-11-18 13:31:49,888 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:49,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:49,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:49,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:49,888 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-18 13:31:49,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:31:49,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:31:49,961 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:49,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:31:49,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:31:49,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:31:49,962 INFO L87 Difference]: Start difference. First operand 543 states and 626 transitions. Second operand 6 states. [2018-11-18 13:31:50,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:50,283 INFO L93 Difference]: Finished difference Result 552 states and 635 transitions. [2018-11-18 13:31:50,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:31:50,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-11-18 13:31:50,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:50,286 INFO L225 Difference]: With dead ends: 552 [2018-11-18 13:31:50,286 INFO L226 Difference]: Without dead ends: 549 [2018-11-18 13:31:50,287 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 13:31:50,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2018-11-18 13:31:50,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 543. [2018-11-18 13:31:50,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2018-11-18 13:31:50,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 625 transitions. [2018-11-18 13:31:50,303 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 625 transitions. Word has length 136 [2018-11-18 13:31:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:50,304 INFO L480 AbstractCegarLoop]: Abstraction has 543 states and 625 transitions. [2018-11-18 13:31:50,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:31:50,304 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 625 transitions. [2018-11-18 13:31:50,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-18 13:31:50,305 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:50,305 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:50,305 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:50,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:50,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1942190565, now seen corresponding path program 1 times [2018-11-18 13:31:50,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:50,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:50,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:50,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:50,307 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 13:31:50,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:50,406 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:31:50,407 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-11-18 13:31:50,407 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [48], [49], [50], [55], [58], [60], [66], [70], [73], [74], [78], [79], [80], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [121], [124], [134], [135], [136], [137], [138], [139], [140], [142], [147], [149], [150], [151], [152], [162], [165], [169], [175], [205], [209], [210], [216], [219], [221], [224], [231], [234], [237], [241], [242], [245], [246], [247], [248], [249], [251], [252], [253], [254], [255], [256], [257], [258], [259], [261], [262], [263], [265], [266], [269], [270], [271], [272], [273], [274], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [295], [296], [297], [299], [300], [301], [302], [305], [306] [2018-11-18 13:31:50,410 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:31:50,410 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:31:51,198 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:31:51,198 INFO L272 AbstractInterpreter]: Visited 116 different actions 524 times. Merged at 20 different actions 57 times. Never widened. Performed 17175 root evaluator evaluations with a maximum evaluation depth of 5. Performed 17175 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 9 fixpoints after 3 different actions. Largest state had 133 variables. [2018-11-18 13:31:51,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:51,200 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:31:51,200 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:51,200 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:31:51,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:51,207 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:31:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:51,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:31:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:31:51,376 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:31:51,567 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 13:31:51,584 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 13:31:51,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2018-11-18 13:31:51,584 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 13:31:51,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 13:31:51,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 13:31:51,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-18 13:31:51,585 INFO L87 Difference]: Start difference. First operand 543 states and 625 transitions. Second operand 14 states. [2018-11-18 13:31:52,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:52,538 INFO L93 Difference]: Finished difference Result 1138 states and 1474 transitions. [2018-11-18 13:31:52,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 13:31:52,538 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 140 [2018-11-18 13:31:52,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:52,540 INFO L225 Difference]: With dead ends: 1138 [2018-11-18 13:31:52,540 INFO L226 Difference]: Without dead ends: 791 [2018-11-18 13:31:52,541 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 274 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2018-11-18 13:31:52,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2018-11-18 13:31:52,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 667. [2018-11-18 13:31:52,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2018-11-18 13:31:52,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 781 transitions. [2018-11-18 13:31:52,565 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 781 transitions. Word has length 140 [2018-11-18 13:31:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:52,565 INFO L480 AbstractCegarLoop]: Abstraction has 667 states and 781 transitions. [2018-11-18 13:31:52,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 13:31:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 781 transitions. [2018-11-18 13:31:52,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-18 13:31:52,568 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:52,568 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:52,568 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:52,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:52,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1209159547, now seen corresponding path program 2 times [2018-11-18 13:31:52,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:52,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:52,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:52,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:52,570 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:52,696 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 47 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-11-18 13:31:52,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:52,697 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:31:52,697 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 13:31:52,697 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 13:31:52,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:52,697 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:31:52,707 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 13:31:52,708 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 13:31:52,829 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-18 13:31:52,829 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 13:31:52,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:31:52,922 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-18 13:31:52,922 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:31:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 47 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-11-18 13:31:53,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:31:53,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 15 [2018-11-18 13:31:53,164 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:53,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 13:31:53,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 13:31:53,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-18 13:31:53,165 INFO L87 Difference]: Start difference. First operand 667 states and 781 transitions. Second operand 9 states. [2018-11-18 13:31:54,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:54,197 INFO L93 Difference]: Finished difference Result 1599 states and 1938 transitions. [2018-11-18 13:31:54,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 13:31:54,197 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2018-11-18 13:31:54,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:54,200 INFO L225 Difference]: With dead ends: 1599 [2018-11-18 13:31:54,200 INFO L226 Difference]: Without dead ends: 1126 [2018-11-18 13:31:54,202 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 384 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2018-11-18 13:31:54,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2018-11-18 13:31:54,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1101. [2018-11-18 13:31:54,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1101 states. [2018-11-18 13:31:54,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1278 transitions. [2018-11-18 13:31:54,235 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1278 transitions. Word has length 195 [2018-11-18 13:31:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:54,236 INFO L480 AbstractCegarLoop]: Abstraction has 1101 states and 1278 transitions. [2018-11-18 13:31:54,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 13:31:54,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1278 transitions. [2018-11-18 13:31:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-18 13:31:54,237 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:54,238 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:54,238 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:54,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:54,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1795435769, now seen corresponding path program 1 times [2018-11-18 13:31:54,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:54,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:54,239 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:31:54,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:54,239 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:54,316 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 13:31:54,316 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:54,316 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:31:54,316 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-11-18 13:31:54,317 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [55], [58], [60], [66], [70], [73], [74], [78], [79], [80], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [121], [124], [134], [135], [136], [137], [138], [139], [140], [142], [147], [149], [150], [151], [152], [162], [165], [169], [175], [205], [209], [210], [216], [219], [221], [224], [231], [234], [237], [241], [242], [245], [246], [247], [248], [249], [251], [252], [253], [254], [255], [256], [257], [258], [259], [261], [262], [263], [265], [266], [269], [270], [271], [272], [273], [274], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [295], [296], [297], [299], [300], [301], [302], [305], [306] [2018-11-18 13:31:54,318 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:31:54,319 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:31:54,879 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:31:54,879 INFO L272 AbstractInterpreter]: Visited 117 different actions 536 times. Merged at 23 different actions 66 times. Never widened. Performed 17069 root evaluator evaluations with a maximum evaluation depth of 5. Performed 17069 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 12 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-18 13:31:54,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:54,885 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:31:54,885 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:54,885 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:31:54,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:54,894 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:31:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:54,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:31:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-11-18 13:31:55,028 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:31:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-18 13:31:55,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:31:55,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 6] total 13 [2018-11-18 13:31:55,194 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:55,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:31:55,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:31:55,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:31:55,195 INFO L87 Difference]: Start difference. First operand 1101 states and 1278 transitions. Second operand 6 states. [2018-11-18 13:31:55,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:55,231 INFO L93 Difference]: Finished difference Result 1928 states and 2262 transitions. [2018-11-18 13:31:55,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:31:55,231 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2018-11-18 13:31:55,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:55,234 INFO L225 Difference]: With dead ends: 1928 [2018-11-18 13:31:55,234 INFO L226 Difference]: Without dead ends: 1023 [2018-11-18 13:31:55,236 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 385 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 13:31:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2018-11-18 13:31:55,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1023. [2018-11-18 13:31:55,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2018-11-18 13:31:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1190 transitions. [2018-11-18 13:31:55,272 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1190 transitions. Word has length 195 [2018-11-18 13:31:55,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:55,272 INFO L480 AbstractCegarLoop]: Abstraction has 1023 states and 1190 transitions. [2018-11-18 13:31:55,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:31:55,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1190 transitions. [2018-11-18 13:31:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-11-18 13:31:55,276 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:55,276 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:55,276 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:55,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:55,276 INFO L82 PathProgramCache]: Analyzing trace with hash 38212359, now seen corresponding path program 1 times [2018-11-18 13:31:55,277 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:55,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:55,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:55,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:55,277 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-11-18 13:31:55,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:55,350 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:31:55,350 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-11-18 13:31:55,351 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [54], [55], [58], [60], [63], [66], [70], [73], [74], [77], [78], [79], [80], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [121], [124], [134], [135], [136], [137], [138], [139], [140], [142], [145], [147], [149], [150], [151], [152], [162], [165], [169], [175], [205], [209], [210], [216], [219], [221], [224], [231], [234], [237], [241], [242], [245], [246], [247], [248], [249], [251], [252], [253], [254], [255], [256], [257], [258], [259], [261], [262], [263], [265], [266], [267], [268], [269], [270], [271], [272], [273], [274], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [295], [296], [297], [299], [300], [301], [302], [305], [306] [2018-11-18 13:31:55,352 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:31:55,352 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:31:56,158 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:31:56,158 INFO L272 AbstractInterpreter]: Visited 124 different actions 590 times. Merged at 34 different actions 116 times. Never widened. Performed 22125 root evaluator evaluations with a maximum evaluation depth of 5. Performed 22125 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 5 different actions. Largest state had 133 variables. [2018-11-18 13:31:56,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:56,169 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:31:56,169 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:56,169 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:31:56,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:56,179 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:31:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:56,258 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:31:56,295 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-11-18 13:31:56,295 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:31:56,486 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 75 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2018-11-18 13:31:56,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:31:56,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 6 [2018-11-18 13:31:56,503 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:56,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:31:56,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:31:56,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:31:56,504 INFO L87 Difference]: Start difference. First operand 1023 states and 1190 transitions. Second operand 6 states. [2018-11-18 13:31:56,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:56,536 INFO L93 Difference]: Finished difference Result 1880 states and 2232 transitions. [2018-11-18 13:31:56,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 13:31:56,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2018-11-18 13:31:56,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:56,540 INFO L225 Difference]: With dead ends: 1880 [2018-11-18 13:31:56,540 INFO L226 Difference]: Without dead ends: 1053 [2018-11-18 13:31:56,541 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 483 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:31:56,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2018-11-18 13:31:56,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1053. [2018-11-18 13:31:56,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2018-11-18 13:31:56,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1222 transitions. [2018-11-18 13:31:56,568 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1222 transitions. Word has length 244 [2018-11-18 13:31:56,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:56,569 INFO L480 AbstractCegarLoop]: Abstraction has 1053 states and 1222 transitions. [2018-11-18 13:31:56,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:31:56,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1222 transitions. [2018-11-18 13:31:56,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-11-18 13:31:56,571 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:31:56,571 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:31:56,571 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:31:56,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:56,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1914695177, now seen corresponding path program 1 times [2018-11-18 13:31:56,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:31:56,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:56,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:56,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:31:56,573 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:31:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:56,645 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 79 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-11-18 13:31:56,645 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:56,646 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 13:31:56,646 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-11-18 13:31:56,646 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [41], [44], [46], [48], [49], [50], [53], [54], [55], [58], [60], [63], [66], [70], [73], [74], [77], [78], [79], [80], [81], [85], [91], [95], [99], [102], [105], [107], [113], [115], [121], [124], [134], [135], [136], [137], [138], [139], [140], [142], [147], [149], [150], [151], [152], [162], [165], [169], [175], [205], [209], [210], [216], [219], [221], [224], [231], [234], [237], [241], [242], [245], [246], [247], [248], [249], [251], [252], [253], [254], [255], [256], [257], [258], [259], [261], [262], [263], [265], [266], [267], [268], [269], [270], [271], [272], [273], [274], [279], [280], [283], [284], [285], [286], [287], [288], [289], [290], [295], [296], [297], [299], [300], [301], [302], [305], [306] [2018-11-18 13:31:56,647 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 13:31:56,647 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 13:31:57,634 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 13:31:57,634 INFO L272 AbstractInterpreter]: Visited 123 different actions 726 times. Merged at 28 different actions 115 times. Never widened. Performed 29853 root evaluator evaluations with a maximum evaluation depth of 5. Performed 29853 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 15 fixpoints after 4 different actions. Largest state had 133 variables. [2018-11-18 13:31:57,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:31:57,637 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 13:31:57,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:31:57,638 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:31:57,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:31:57,644 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 13:31:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:31:57,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:31:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 13:31:57,774 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 13:31:57,953 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 79 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-11-18 13:31:57,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 13:31:57,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-11-18 13:31:57,969 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:31:57,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 13:31:57,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:31:57,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:31:57,970 INFO L87 Difference]: Start difference. First operand 1053 states and 1222 transitions. Second operand 5 states. [2018-11-18 13:31:57,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:31:57,992 INFO L93 Difference]: Finished difference Result 1358 states and 1584 transitions. [2018-11-18 13:31:57,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:31:57,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2018-11-18 13:31:57,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:31:57,993 INFO L225 Difference]: With dead ends: 1358 [2018-11-18 13:31:57,993 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:31:57,995 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 485 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:31:57,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:31:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:31:57,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:31:57,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:31:57,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 244 [2018-11-18 13:31:57,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:31:57,996 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:31:57,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 13:31:57,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:31:57,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:31:58,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:31:58,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,326 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 13:31:58,519 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 11 [2018-11-18 13:31:59,779 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 566 572) the Hoare annotation is: true [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 566 572) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 573 581) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 573 581) the Hoare annotation is: true [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 573 581) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point L417(lines 417 430) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point L417-1(lines 409 433) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L428 ceAbstractionStarter]: At program point L415(line 415) the Hoare annotation is: true [2018-11-18 13:31:59,780 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 409 433) the Hoare annotation is: true [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point L415-1(line 415) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 409 433) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L421 ceAbstractionStarter]: At program point L423(line 423) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point L421(lines 421 427) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L421 ceAbstractionStarter]: At program point L419(line 419) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or (not (= 0 ~pumpRunning~0)) .cse0 (not (= ~waterLevel~0 1))))) [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point L419-1(line 419) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 515 537) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 515 537) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L421 ceAbstractionStarter]: At program point L527(line 527) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= main_~tmp~4 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:31:59,780 INFO L421 ceAbstractionStarter]: At program point L527-1(line 527) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (and (= main_~tmp~4 ~waterLevel~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point L525(lines 525 532) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 515 537) no Hoare annotation was computed. [2018-11-18 13:31:59,780 INFO L425 ceAbstractionStarter]: For program point L525-1(lines 525 532) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L421 ceAbstractionStarter]: At program point L522(line 522) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 13:31:59,781 INFO L421 ceAbstractionStarter]: At program point L521(line 521) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 13:31:59,781 INFO L421 ceAbstractionStarter]: At program point L521-1(line 521) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 807 815) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 807 815) the Hoare annotation is: true [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 807 815) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point L880(lines 880 884) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L428 ceAbstractionStarter]: At program point L878(line 878) the Hoare annotation is: true [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point L880-2(lines 880 884) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point L878-1(line 878) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 871 889) the Hoare annotation is: true [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 871 889) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 871 889) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 559 565) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 559 565) the Hoare annotation is: true [2018-11-18 13:31:59,781 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 502 511) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 502 511) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 502 511) no Hoare annotation was computed. [2018-11-18 13:31:59,781 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 788 795) the Hoare annotation is: (or (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 13:31:59,781 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 788 795) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 788 795) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L421 ceAbstractionStarter]: At program point L769(line 769) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~waterLevel~0 2) .cse0) (or .cse0 (not (= ~waterLevel~0 1))))) [2018-11-18 13:31:59,782 INFO L421 ceAbstractionStarter]: At program point L765(line 765) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (and (<= 1 processEnvironment_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) .cse1))) [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point L763(lines 763 771) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L421 ceAbstractionStarter]: At program point L761(line 761) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (< ~waterLevel~0 1) .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point L761-1(line 761) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point L759(lines 759 776) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 755 779) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 755 779) the Hoare annotation is: (or (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 13:31:59,782 INFO L421 ceAbstractionStarter]: At program point L774(line 774) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~waterLevel~0 1))) (or (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) .cse1) (or .cse0 (or (< ~waterLevel~0 2) .cse1)))) [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point L671(lines 671 677) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 667 680) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 667 680) the Hoare annotation is: true [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 667 680) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point L929(lines 929 935) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L425 ceAbstractionStarter]: For program point L929-1(lines 929 935) no Hoare annotation was computed. [2018-11-18 13:31:59,782 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 899 964) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 13:31:59,783 INFO L421 ceAbstractionStarter]: At program point L954(lines 909 956) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 13:31:59,783 INFO L421 ceAbstractionStarter]: At program point L921(line 921) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 13:31:59,783 INFO L425 ceAbstractionStarter]: For program point L919(lines 919 925) no Hoare annotation was computed. [2018-11-18 13:31:59,783 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 899 964) no Hoare annotation was computed. [2018-11-18 13:31:59,783 INFO L425 ceAbstractionStarter]: For program point L919-1(lines 919 925) no Hoare annotation was computed. [2018-11-18 13:31:59,783 INFO L425 ceAbstractionStarter]: For program point L911(lines 911 915) no Hoare annotation was computed. [2018-11-18 13:31:59,783 INFO L425 ceAbstractionStarter]: For program point L909-1(lines 909 956) no Hoare annotation was computed. [2018-11-18 13:31:59,783 INFO L421 ceAbstractionStarter]: At program point L957(lines 908 958) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 13:31:59,783 INFO L425 ceAbstractionStarter]: For program point L947(lines 947 951) no Hoare annotation was computed. [2018-11-18 13:31:59,783 INFO L421 ceAbstractionStarter]: At program point L947-2(lines 939 952) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 13:31:59,783 INFO L425 ceAbstractionStarter]: For program point L910(lines 909 956) no Hoare annotation was computed. [2018-11-18 13:31:59,783 INFO L421 ceAbstractionStarter]: At program point L941(line 941) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point L939(lines 939 952) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L421 ceAbstractionStarter]: At program point L931(line 931) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)))) [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 899 964) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 681 689) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 681 689) the Hoare annotation is: true [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 681 689) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point activatePumpFINAL(lines 780 787) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 780 787) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 780 787) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 852 870) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point L861(lines 861 865) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L428 ceAbstractionStarter]: At program point L859(line 859) the Hoare annotation is: true [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point L861-2(lines 861 865) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point L859-1(line 859) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 852 870) the Hoare annotation is: true [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 852 870) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 658 666) the Hoare annotation is: true [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 658 666) no Hoare annotation was computed. [2018-11-18 13:31:59,784 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 658 666) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L428 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 614 625) the Hoare annotation is: true [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point L618-1(lines 614 625) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 614 625) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L421 ceAbstractionStarter]: At program point L703(line 703) the Hoare annotation is: (let ((.cse0 (< |old(~waterLevel~0)| 2)) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1)) (or .cse2 .cse0 .cse1) (or .cse2 .cse1 (not (= |old(~waterLevel~0)| 1))))) [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point L701(lines 700 719) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 697 720) the Hoare annotation is: (let ((.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (or (< |old(~waterLevel~0)| 2) .cse1)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))))) [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L421 ceAbstractionStarter]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or (and (= 0 ~pumpRunning~0) .cse0 .cse1) (let ((.cse2 (+ ~waterLevel~0 1))) (and (<= .cse2 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) (<= |old(~waterLevel~0)| .cse2) .cse1)) (or (< |old(~waterLevel~0)| 2) .cse3)) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 .cse1) .cse3 (not (= |old(~waterLevel~0)| 1))))) [2018-11-18 13:31:59,785 INFO L421 ceAbstractionStarter]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= ~systemActive~0 1))) (let ((.cse2 (not .cse4)) (.cse1 (and (<= 2 ~waterLevel~0) .cse3 .cse4))) (and (or (let ((.cse0 (+ ~waterLevel~0 1))) (and (<= .cse0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| .cse0))) .cse1 (or (< |old(~waterLevel~0)| 2) .cse2)) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse2 .cse1 (and .cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)))))) [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 437 466) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point L451(lines 451 455) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L428 ceAbstractionStarter]: At program point L451-1(lines 451 455) the Hoare annotation is: true [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point L447-1(lines 447 461) no Hoare annotation was computed. [2018-11-18 13:31:59,785 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 437 466) the Hoare annotation is: true [2018-11-18 13:31:59,785 INFO L428 ceAbstractionStarter]: At program point L447-3(lines 447 461) the Hoare annotation is: true [2018-11-18 13:31:59,785 INFO L428 ceAbstractionStarter]: At program point L443(line 443) the Hoare annotation is: true [2018-11-18 13:31:59,785 INFO L425 ceAbstractionStarter]: For program point L443-1(line 443) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L428 ceAbstractionStarter]: At program point L462(lines 437 466) the Hoare annotation is: true [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point L594-1(lines 590 601) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 590 601) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 590 601) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 494 500) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 494 500) the Hoare annotation is: true [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 13:31:59,786 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point startSystemEXIT(lines 890 897) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L421 ceAbstractionStarter]: At program point startSystemENTRY(lines 890 897) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= ~waterLevel~0 1))) (or .cse0 (or (< ~waterLevel~0 2) .cse1)))) [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point startSystemFINAL(lines 890 897) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point L737(lines 737 745) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1))) (or .cse1 (or .cse0 (< ~waterLevel~0 2) .cse2)))) [2018-11-18 13:31:59,786 INFO L421 ceAbstractionStarter]: At program point L735(line 735) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1))) (or .cse1 (or .cse0 (< ~waterLevel~0 2) .cse2)))) [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point L735-1(line 735) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point L733(lines 733 750) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2018-11-18 13:31:59,786 INFO L421 ceAbstractionStarter]: At program point L748(line 748) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (< ~waterLevel~0 2) .cse1) (or .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-11-18 13:31:59,786 INFO L425 ceAbstractionStarter]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2018-11-18 13:31:59,787 INFO L421 ceAbstractionStarter]: At program point L743(line 743) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:31:59,787 INFO L421 ceAbstractionStarter]: At program point L739(line 739) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 13:31:59,787 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 602 613) no Hoare annotation was computed. [2018-11-18 13:31:59,787 INFO L425 ceAbstractionStarter]: For program point L606-1(lines 602 613) no Hoare annotation was computed. [2018-11-18 13:31:59,787 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 602 613) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)))) [2018-11-18 13:31:59,787 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 539 546) no Hoare annotation was computed. [2018-11-18 13:31:59,787 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 543) no Hoare annotation was computed. [2018-11-18 13:31:59,787 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 539 546) the Hoare annotation is: true [2018-11-18 13:31:59,787 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 539 546) no Hoare annotation was computed. [2018-11-18 13:31:59,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:31:59 BoogieIcfgContainer [2018-11-18 13:31:59,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:31:59,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:31:59,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:31:59,799 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:31:59,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:31:40" (3/4) ... [2018-11-18 13:31:59,803 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:31:59,808 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 13:31:59,808 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 13:31:59,808 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-18 13:31:59,808 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:31:59,808 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 13:31:59,808 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 13:31:59,809 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 13:31:59,810 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 13:31:59,810 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 13:31:59,810 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 13:31:59,810 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-18 13:31:59,810 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 13:31:59,810 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 13:31:59,810 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 13:31:59,816 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2018-11-18 13:31:59,817 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 13:31:59,817 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 13:31:59,838 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0 == \old(pumpRunning)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-11-18 13:31:59,838 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) [2018-11-18 13:31:59,871 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b47ce66d-f58b-4ad5-a9e9-83efaa83b2a6/bin-2019/utaipan/witness.graphml [2018-11-18 13:31:59,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:31:59,871 INFO L168 Benchmark]: Toolchain (without parser) took 20719.43 ms. Allocated memory was 1.0 GB in the beginning and 2.5 GB in the end (delta: 1.5 GB). Free memory was 955.7 MB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 216.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:31:59,872 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:31:59,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 955.7 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:31:59,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:31:59,873 INFO L168 Benchmark]: Boogie Preprocessor took 25.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:31:59,873 INFO L168 Benchmark]: RCFGBuilder took 554.14 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:31:59,873 INFO L168 Benchmark]: TraceAbstraction took 19694.47 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.3 GB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. [2018-11-18 13:31:59,873 INFO L168 Benchmark]: Witness Printer took 71.75 ms. Allocated memory is still 2.5 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 136.4 kB). Peak memory consumption was 136.4 kB. Max. memory is 11.5 GB. [2018-11-18 13:31:59,875 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 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 348.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 955.7 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 554.14 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19694.47 ms. Allocated memory was 1.2 GB in the beginning and 2.5 GB in the end (delta: 1.3 GB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 11.5 GB. * Witness Printer took 71.75 ms. Allocated memory is still 2.5 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 136.4 kB). Peak memory consumption was 136.4 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: (((!(0 == \old(pumpRunning)) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || ((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 147 locations, 1 error locations. SAFE Result, 19.6s OverallTime, 15 OverallIterations, 4 TraceHistogramMax, 9.2s AutomataDifference, 0.0s DeadEndRemovalTime, 1.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 2480 SDtfs, 2152 SDslu, 7976 SDs, 0 SdLazy, 4719 SolverSat, 778 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2608 GetRequests, 2419 SyntacticMatches, 24 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1101occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.9s AbstIntTime, 7 AbstIntIterations, 3 AbstIntStrong, 0.998065032971528 AbsIntWeakeningRatio, 0.9095354523227384 AbsIntAvgWeakeningVarsNumRemoved, 39.88508557457213 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 255 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 2403 PreInvPairs, 2478 NumberOfFragments, 1067 HoareAnnotationTreeSize, 2403 FomulaSimplifications, 6174 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 60 FomulaSimplificationsInter, 9325 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 3013 NumberOfCodeBlocks, 2956 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 4006 ConstructedInterpolants, 0 QuantifiedInterpolants, 910675 SizeOfPredicates, 24 NumberOfNonLiveVariables, 4390 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 25 InterpolantComputations, 11 PerfectInterpolantSequences, 2126/2210 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...