./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe024_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe024_tso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/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 8454022e837799c63eb994d265217050068eba69 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:17:37,554 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:17:37,556 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:17:37,564 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:17:37,565 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:17:37,565 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:17:37,566 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:17:37,567 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:17:37,569 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:17:37,569 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:17:37,570 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:17:37,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:17:37,571 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:17:37,572 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:17:37,573 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:17:37,574 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:17:37,575 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:17:37,576 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:17:37,578 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:17:37,579 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:17:37,580 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:17:37,581 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:17:37,583 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:17:37,583 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:17:37,583 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:17:37,584 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:17:37,585 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:17:37,586 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:17:37,586 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:17:37,587 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:17:37,588 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:17:37,588 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:17:37,588 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:17:37,589 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:17:37,589 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:17:37,590 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:17:37,590 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 03:17:37,602 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:17:37,603 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:17:37,603 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:17:37,604 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:17:37,604 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 03:17:37,604 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 03:17:37,604 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 03:17:37,604 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 03:17:37,604 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 03:17:37,605 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 03:17:37,605 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 03:17:37,605 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 03:17:37,605 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 03:17:37,606 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:17:37,606 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:17:37,606 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:17:37,606 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:17:37,606 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:17:37,606 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:17:37,607 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:17:37,607 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:17:37,607 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:17:37,607 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:17:37,607 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:17:37,607 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:17:37,608 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:17:37,608 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:17:37,608 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:17:37,608 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:17:37,608 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:17:37,608 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:17:37,608 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:17:37,608 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:17:37,609 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 03:17:37,609 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:17:37,609 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:17:37,609 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 03:17:37,609 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_ec8f4686-8d43-4fca-af51-2216aad359b0/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 -> 8454022e837799c63eb994d265217050068eba69 [2018-11-23 03:17:37,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:17:37,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:17:37,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:17:37,647 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:17:37,648 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:17:37,648 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe024_tso.oepc_true-unreach-call.i [2018-11-23 03:17:37,692 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/data/a1c3d2186/3830c0e1e2e9422e924a885193d2df47/FLAGe042b65a7 [2018-11-23 03:17:38,121 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:17:38,122 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/sv-benchmarks/c/pthread-wmm/safe024_tso.oepc_true-unreach-call.i [2018-11-23 03:17:38,133 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/data/a1c3d2186/3830c0e1e2e9422e924a885193d2df47/FLAGe042b65a7 [2018-11-23 03:17:38,142 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/data/a1c3d2186/3830c0e1e2e9422e924a885193d2df47 [2018-11-23 03:17:38,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:17:38,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:17:38,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:17:38,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:17:38,148 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:17:38,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415483f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38, skipping insertion in model container [2018-11-23 03:17:38,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:17:38,185 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:17:38,422 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:17:38,430 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:17:38,517 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:17:38,564 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:17:38,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38 WrapperNode [2018-11-23 03:17:38,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:17:38,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:17:38,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:17:38,566 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:17:38,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:17:38,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:17:38,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:17:38,601 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:17:38,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... [2018-11-23 03:17:38,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:17:38,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:17:38,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:17:38,621 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:17:38,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/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 [2018-11-23 03:17:38,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 03:17:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 03:17:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 03:17:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 03:17:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 03:17:38,669 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 03:17:38,669 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 03:17:38,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 03:17:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 03:17:38,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 03:17:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 03:17:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:17:38,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:17:38,671 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 03:17:38,890 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:17:38,890 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 03:17:38,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:38 BoogieIcfgContainer [2018-11-23 03:17:38,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:17:38,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:17:38,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:17:38,894 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:17:38,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:17:38" (1/3) ... [2018-11-23 03:17:38,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fbc172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:38, skipping insertion in model container [2018-11-23 03:17:38,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:17:38" (2/3) ... [2018-11-23 03:17:38,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fbc172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:17:38, skipping insertion in model container [2018-11-23 03:17:38,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:38" (3/3) ... [2018-11-23 03:17:38,897 INFO L112 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc_true-unreach-call.i [2018-11-23 03:17:38,920 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,920 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,921 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,921 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,921 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,921 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,921 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,921 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,922 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,922 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,922 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,922 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,922 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,922 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,922 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,922 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,923 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,923 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,923 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,923 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,923 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,923 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,924 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,924 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,924 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,924 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,924 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,924 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,924 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,925 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:17:38,932 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 03:17:38,932 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:17:38,939 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:17:38,953 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:17:38,972 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:17:38,972 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:17:38,972 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:17:38,972 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:17:38,972 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:17:38,972 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:17:38,972 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:17:38,972 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:17:38,980 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57places, 54 transitions [2018-11-23 03:17:39,061 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2018-11-23 03:17:39,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2018-11-23 03:17:39,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 03:17:39,076 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:17:39,077 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:17:39,079 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:17:39,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:17:39,084 INFO L82 PathProgramCache]: Analyzing trace with hash 552035095, now seen corresponding path program 1 times [2018-11-23 03:17:39,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:17:39,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:17:39,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,138 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:17:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:17:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:17:39,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:17:39,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 03:17:39,280 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:17:39,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 03:17:39,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 03:17:39,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 03:17:39,294 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2018-11-23 03:17:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:17:39,368 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2018-11-23 03:17:39,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 03:17:39,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-11-23 03:17:39,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:17:39,388 INFO L225 Difference]: With dead ends: 2494 [2018-11-23 03:17:39,388 INFO L226 Difference]: Without dead ends: 1129 [2018-11-23 03:17:39,390 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 03:17:39,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2018-11-23 03:17:39,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2018-11-23 03:17:39,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2018-11-23 03:17:39,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2018-11-23 03:17:39,468 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2018-11-23 03:17:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:17:39,469 INFO L480 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2018-11-23 03:17:39,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 03:17:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2018-11-23 03:17:39,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 03:17:39,471 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:17:39,472 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:17:39,472 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:17:39,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:17:39,472 INFO L82 PathProgramCache]: Analyzing trace with hash 561207845, now seen corresponding path program 1 times [2018-11-23 03:17:39,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:17:39,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:17:39,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,477 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:17:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:17:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:17:39,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:17:39,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 03:17:39,551 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:17:39,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 03:17:39,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 03:17:39,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 03:17:39,553 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2018-11-23 03:17:39,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:17:39,620 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2018-11-23 03:17:39,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 03:17:39,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-11-23 03:17:39,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:17:39,626 INFO L225 Difference]: With dead ends: 1169 [2018-11-23 03:17:39,626 INFO L226 Difference]: Without dead ends: 1045 [2018-11-23 03:17:39,626 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 03:17:39,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2018-11-23 03:17:39,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2018-11-23 03:17:39,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2018-11-23 03:17:39,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2018-11-23 03:17:39,648 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2018-11-23 03:17:39,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:17:39,648 INFO L480 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2018-11-23 03:17:39,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 03:17:39,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2018-11-23 03:17:39,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 03:17:39,650 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:17:39,650 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:17:39,651 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:17:39,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:17:39,651 INFO L82 PathProgramCache]: Analyzing trace with hash 225841121, now seen corresponding path program 1 times [2018-11-23 03:17:39,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:17:39,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:17:39,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,655 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:17:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:17:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:17:39,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:17:39,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:17:39,732 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:17:39,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:17:39,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:17:39,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:17:39,733 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2018-11-23 03:17:39,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:17:39,790 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2018-11-23 03:17:39,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 03:17:39,790 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-11-23 03:17:39,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:17:39,793 INFO L225 Difference]: With dead ends: 821 [2018-11-23 03:17:39,793 INFO L226 Difference]: Without dead ends: 709 [2018-11-23 03:17:39,793 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-23 03:17:39,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2018-11-23 03:17:39,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2018-11-23 03:17:39,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2018-11-23 03:17:39,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2018-11-23 03:17:39,807 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2018-11-23 03:17:39,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:17:39,807 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2018-11-23 03:17:39,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:17:39,807 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2018-11-23 03:17:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 03:17:39,808 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:17:39,809 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:17:39,809 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:17:39,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:17:39,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1721829239, now seen corresponding path program 1 times [2018-11-23 03:17:39,810 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:17:39,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:17:39,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,812 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:17:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:17:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:17:39,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:17:39,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 03:17:39,898 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:17:39,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 03:17:39,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 03:17:39,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 03:17:39,898 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 7 states. [2018-11-23 03:17:39,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:17:39,960 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2018-11-23 03:17:39,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 03:17:39,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-23 03:17:39,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:17:39,963 INFO L225 Difference]: With dead ends: 1109 [2018-11-23 03:17:39,963 INFO L226 Difference]: Without dead ends: 593 [2018-11-23 03:17:39,963 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 03:17:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2018-11-23 03:17:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2018-11-23 03:17:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2018-11-23 03:17:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2018-11-23 03:17:39,975 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2018-11-23 03:17:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:17:39,976 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2018-11-23 03:17:39,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 03:17:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2018-11-23 03:17:39,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 03:17:39,977 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:17:39,977 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:17:39,977 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:17:39,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:17:39,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1415137353, now seen corresponding path program 2 times [2018-11-23 03:17:39,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:17:39,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:17:39,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:39,980 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:17:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:17:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:17:40,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:17:40,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 03:17:40,053 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:17:40,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 03:17:40,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 03:17:40,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 03:17:40,054 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 7 states. [2018-11-23 03:17:40,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:17:40,122 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2018-11-23 03:17:40,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 03:17:40,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-23 03:17:40,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:17:40,125 INFO L225 Difference]: With dead ends: 977 [2018-11-23 03:17:40,125 INFO L226 Difference]: Without dead ends: 557 [2018-11-23 03:17:40,126 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 03:17:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-11-23 03:17:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2018-11-23 03:17:40,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2018-11-23 03:17:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2018-11-23 03:17:40,139 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2018-11-23 03:17:40,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:17:40,139 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2018-11-23 03:17:40,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 03:17:40,140 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2018-11-23 03:17:40,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 03:17:40,141 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:17:40,141 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:17:40,141 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:17:40,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:17:40,142 INFO L82 PathProgramCache]: Analyzing trace with hash 251572495, now seen corresponding path program 3 times [2018-11-23 03:17:40,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 03:17:40,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:40,143 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 03:17:40,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:17:40,144 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 03:17:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:17:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:17:40,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:17:40,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 03:17:40,233 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 03:17:40,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 03:17:40,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 03:17:40,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 03:17:40,234 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 7 states. [2018-11-23 03:17:40,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:17:40,312 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2018-11-23 03:17:40,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 03:17:40,312 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-23 03:17:40,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:17:40,312 INFO L225 Difference]: With dead ends: 429 [2018-11-23 03:17:40,313 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 03:17:40,313 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 03:17:40,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 03:17:40,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 03:17:40,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 03:17:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 03:17:40,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-23 03:17:40,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:17:40,314 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 03:17:40,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 03:17:40,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 03:17:40,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:17:40,316 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 03:17:40,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:17:40 BasicIcfg [2018-11-23 03:17:40,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:17:40,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:17:40,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:17:40,318 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:17:40,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:17:38" (3/4) ... [2018-11-23 03:17:40,321 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:17:40,327 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 03:17:40,327 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 03:17:40,327 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 03:17:40,331 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 03:17:40,331 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 03:17:40,366 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ec8f4686-8d43-4fca-af51-2216aad359b0/bin-2019/utaipan/witness.graphml [2018-11-23 03:17:40,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:17:40,366 INFO L168 Benchmark]: Toolchain (without parser) took 2221.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 951.1 MB in the beginning and 925.2 MB in the end (delta: 25.9 MB). Peak memory consumption was 227.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:17:40,368 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:17:40,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 951.1 MB in the beginning and 1.2 GB in the end (delta: -229.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:17:40,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:17:40,369 INFO L168 Benchmark]: Boogie Preprocessor took 19.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:17:40,369 INFO L168 Benchmark]: RCFGBuilder took 270.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-11-23 03:17:40,370 INFO L168 Benchmark]: TraceAbstraction took 1426.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 928.4 MB in the end (delta: 224.2 MB). Peak memory consumption was 224.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:17:40,371 INFO L168 Benchmark]: Witness Printer took 47.93 ms. Allocated memory is still 1.2 GB. Free memory was 928.4 MB in the beginning and 925.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:17:40,374 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 419.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 951.1 MB in the beginning and 1.2 GB in the end (delta: -229.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 270.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1426.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 928.4 MB in the end (delta: 224.2 MB). Peak memory consumption was 224.2 MB. Max. memory is 11.5 GB. * Witness Printer took 47.93 ms. Allocated memory is still 1.2 GB. Free memory was 928.4 MB in the beginning and 925.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 72 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 364 SDtfs, 435 SDslu, 978 SDs, 0 SdLazy, 104 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 15768 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...