./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a99c5e1922c5e2d2ce50e982def02dab2dbd81e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:49:15,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:49:15,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:49:15,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:49:15,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:49:15,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:49:15,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:49:15,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:49:15,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:49:15,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:49:15,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:49:15,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:49:15,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:49:15,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:49:15,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:49:15,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:49:15,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:49:15,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:49:15,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:49:15,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:49:15,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:49:15,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:49:15,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:49:15,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:49:15,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:49:15,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:49:15,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:49:15,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:49:15,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:49:15,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:49:15,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:49:15,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:49:15,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:49:15,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:49:15,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:49:15,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:49:15,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:49:15,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:49:15,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:49:15,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:49:15,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:49:15,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:49:15,524 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:49:15,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:49:15,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:49:15,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:49:15,528 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:49:15,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:49:15,529 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:49:15,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:49:15,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:49:15,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:49:15,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:49:15,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:49:15,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:49:15,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:49:15,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:49:15,530 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:49:15,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:49:15,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:49:15,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:49:15,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:49:15,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:49:15,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:49:15,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:49:15,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:49:15,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:49:15,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:49:15,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:49:15,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:49:15,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a99c5e1922c5e2d2ce50e982def02dab2dbd81e [2019-11-25 08:49:15,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:49:15,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:49:15,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:49:15,679 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:49:15,679 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:49:15,680 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2019-11-25 08:49:15,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/data/153eafbc8/40216345b4594e5db6729beb2e4a788e/FLAGbad9099de [2019-11-25 08:49:16,200 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:49:16,201 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2019-11-25 08:49:16,212 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/data/153eafbc8/40216345b4594e5db6729beb2e4a788e/FLAGbad9099de [2019-11-25 08:49:16,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/data/153eafbc8/40216345b4594e5db6729beb2e4a788e [2019-11-25 08:49:16,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:49:16,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:49:16,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:16,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:49:16,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:49:16,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71460fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16, skipping insertion in model container [2019-11-25 08:49:16,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:49:16,276 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:49:16,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:16,588 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:49:16,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:16,680 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:49:16,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16 WrapperNode [2019-11-25 08:49:16,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:16,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:16,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:49:16,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:49:16,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:16,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:49:16,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:49:16,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:49:16,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... [2019-11-25 08:49:16,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:49:16,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:49:16,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:49:16,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:49:16,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:49:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:49:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:49:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-25 08:49:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:49:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:49:16,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:49:17,184 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:49:17,184 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-25 08:49:17,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:17 BoogieIcfgContainer [2019-11-25 08:49:17,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:49:17,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:49:17,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:49:17,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:49:17,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:49:16" (1/3) ... [2019-11-25 08:49:17,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111cd304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:49:17, skipping insertion in model container [2019-11-25 08:49:17,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:16" (2/3) ... [2019-11-25 08:49:17,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111cd304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:49:17, skipping insertion in model container [2019-11-25 08:49:17,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:17" (3/3) ... [2019-11-25 08:49:17,192 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_length_check-1.i [2019-11-25 08:49:17,204 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:49:17,210 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:49:17,220 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:49:17,249 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:49:17,249 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:49:17,251 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:49:17,251 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:49:17,251 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:49:17,252 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:49:17,252 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:49:17,252 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:49:17,263 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-25 08:49:17,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:49:17,269 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:17,269 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:17,270 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:17,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:17,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1050078975, now seen corresponding path program 1 times [2019-11-25 08:49:17,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:17,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150369255] [2019-11-25 08:49:17,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:17,367 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150369255] [2019-11-25 08:49:17,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:49:17,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:49:17,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482340741] [2019-11-25 08:49:17,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:49:17,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:17,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:49:17,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:49:17,385 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-11-25 08:49:17,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:17,401 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2019-11-25 08:49:17,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:49:17,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-25 08:49:17,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:49:17,410 INFO L225 Difference]: With dead ends: 41 [2019-11-25 08:49:17,411 INFO L226 Difference]: Without dead ends: 17 [2019-11-25 08:49:17,413 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:49:17,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-25 08:49:17,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-25 08:49:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-25 08:49:17,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-25 08:49:17,441 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 12 [2019-11-25 08:49:17,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:49:17,441 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-25 08:49:17,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:49:17,441 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-25 08:49:17,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:49:17,442 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:17,442 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:17,442 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:17,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:17,442 INFO L82 PathProgramCache]: Analyzing trace with hash 924106356, now seen corresponding path program 1 times [2019-11-25 08:49:17,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:17,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751952773] [2019-11-25 08:49:17,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:17,511 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751952773] [2019-11-25 08:49:17,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:49:17,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:49:17,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943528998] [2019-11-25 08:49:17,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:49:17,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:17,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:49:17,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:49:17,513 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2019-11-25 08:49:17,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:17,559 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-11-25 08:49:17,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:49:17,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-25 08:49:17,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:49:17,561 INFO L225 Difference]: With dead ends: 28 [2019-11-25 08:49:17,561 INFO L226 Difference]: Without dead ends: 20 [2019-11-25 08:49:17,562 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:49:17,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-25 08:49:17,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2019-11-25 08:49:17,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:49:17,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-25 08:49:17,566 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 14 [2019-11-25 08:49:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:49:17,567 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-25 08:49:17,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:49:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-25 08:49:17,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:49:17,568 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:17,568 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:17,568 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:17,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:17,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1149244957, now seen corresponding path program 1 times [2019-11-25 08:49:17,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:17,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233112595] [2019-11-25 08:49:17,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:17,650 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233112595] [2019-11-25 08:49:17,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:49:17,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:49:17,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207940211] [2019-11-25 08:49:17,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:49:17,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:17,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:49:17,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:49:17,652 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 6 states. [2019-11-25 08:49:17,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:17,730 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-11-25 08:49:17,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:49:17,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-25 08:49:17,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:49:17,732 INFO L225 Difference]: With dead ends: 26 [2019-11-25 08:49:17,732 INFO L226 Difference]: Without dead ends: 21 [2019-11-25 08:49:17,732 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:49:17,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-25 08:49:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2019-11-25 08:49:17,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-25 08:49:17,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-25 08:49:17,737 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 17 [2019-11-25 08:49:17,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:49:17,737 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-25 08:49:17,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:49:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-25 08:49:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-25 08:49:17,738 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:17,738 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:17,739 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:17,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:17,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1318509563, now seen corresponding path program 1 times [2019-11-25 08:49:17,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:17,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339673772] [2019-11-25 08:49:17,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:49:17,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339673772] [2019-11-25 08:49:17,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683289932] [2019-11-25 08:49:17,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:49:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:17,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:49:17,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:17,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:49:17,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:49:17,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-11-25 08:49:17,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565853875] [2019-11-25 08:49:17,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:49:17,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:17,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:49:17,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:49:17,961 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 6 states. [2019-11-25 08:49:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:18,010 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2019-11-25 08:49:18,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:49:18,010 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-25 08:49:18,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:49:18,011 INFO L225 Difference]: With dead ends: 33 [2019-11-25 08:49:18,011 INFO L226 Difference]: Without dead ends: 24 [2019-11-25 08:49:18,012 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:49:18,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-25 08:49:18,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2019-11-25 08:49:18,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-25 08:49:18,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-25 08:49:18,016 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 18 [2019-11-25 08:49:18,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:49:18,016 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-25 08:49:18,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:49:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-25 08:49:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-25 08:49:18,017 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:18,017 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:18,222 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:49:18,222 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:18,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:18,222 INFO L82 PathProgramCache]: Analyzing trace with hash -2117322972, now seen corresponding path program 2 times [2019-11-25 08:49:18,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:18,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860928797] [2019-11-25 08:49:18,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:18,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:18,396 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860928797] [2019-11-25 08:49:18,396 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607676897] [2019-11-25 08:49:18,396 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:49:18,455 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-25 08:49:18,456 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:49:18,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:49:18,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:18,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:49:18,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:49:18,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-11-25 08:49:18,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711550696] [2019-11-25 08:49:18,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-25 08:49:18,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:18,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-25 08:49:18,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:49:18,527 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 12 states. [2019-11-25 08:49:18,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:18,827 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-11-25 08:49:18,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-25 08:49:18,829 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2019-11-25 08:49:18,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:49:18,830 INFO L225 Difference]: With dead ends: 35 [2019-11-25 08:49:18,830 INFO L226 Difference]: Without dead ends: 26 [2019-11-25 08:49:18,831 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2019-11-25 08:49:18,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-25 08:49:18,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-25 08:49:18,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-25 08:49:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-11-25 08:49:18,836 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 21 [2019-11-25 08:49:18,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:49:18,836 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-11-25 08:49:18,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-25 08:49:18,836 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-11-25 08:49:18,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-25 08:49:18,837 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:18,837 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:19,038 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:49:19,038 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:19,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:19,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1344305789, now seen corresponding path program 3 times [2019-11-25 08:49:19,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:19,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352103617] [2019-11-25 08:49:19,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:19,272 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:19,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352103617] [2019-11-25 08:49:19,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905130062] [2019-11-25 08:49:19,272 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:49:19,346 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-11-25 08:49:19,347 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:49:19,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-25 08:49:19,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-25 08:49:19,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:49:19,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2019-11-25 08:49:19,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797435919] [2019-11-25 08:49:19,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-25 08:49:19,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:49:19,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-25 08:49:19,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2019-11-25 08:49:19,518 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 18 states. [2019-11-25 08:49:20,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:49:20,506 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2019-11-25 08:49:20,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-25 08:49:20,507 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 25 [2019-11-25 08:49:20,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:49:20,508 INFO L225 Difference]: With dead ends: 61 [2019-11-25 08:49:20,508 INFO L226 Difference]: Without dead ends: 56 [2019-11-25 08:49:20,509 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=270, Invalid=920, Unknown=0, NotChecked=0, Total=1190 [2019-11-25 08:49:20,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-25 08:49:20,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 27. [2019-11-25 08:49:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-25 08:49:20,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-11-25 08:49:20,520 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 25 [2019-11-25 08:49:20,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:49:20,521 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-11-25 08:49:20,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-25 08:49:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-11-25 08:49:20,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-25 08:49:20,523 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:49:20,523 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:49:20,730 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:49:20,730 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:49:20,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:20,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1224539237, now seen corresponding path program 4 times [2019-11-25 08:49:20,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:20,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317296767] [2019-11-25 08:49:20,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:20,801 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:20,801 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:49:20,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:49:20 BoogieIcfgContainer [2019-11-25 08:49:20,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:49:20,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:49:20,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:49:20,842 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:49:20,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:17" (3/4) ... [2019-11-25 08:49:20,844 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:49:20,905 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bca69597-a1cf-4392-a3b4-0bc2e48bd448/bin/uautomizer/witness.graphml [2019-11-25 08:49:20,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:49:20,908 INFO L168 Benchmark]: Toolchain (without parser) took 4680.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -56.2 MB). Peak memory consumption was 87.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:20,908 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:20,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:20,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.90 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. [2019-11-25 08:49:20,909 INFO L168 Benchmark]: Boogie Preprocessor took 33.90 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:20,910 INFO L168 Benchmark]: RCFGBuilder took 422.54 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:20,910 INFO L168 Benchmark]: TraceAbstraction took 3653.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.9 MB). Peak memory consumption was 83.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:20,911 INFO L168 Benchmark]: Witness Printer took 65.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:20,913 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 453.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -176.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.90 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 33.90 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 422.54 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3653.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.9 MB). Peak memory consumption was 83.9 MB. Max. memory is 11.5 GB. * Witness Printer took 65.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 602]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L592] int len = 2; [L593] len < 32 && __VERIFIER_nondet_int() [L593] len < 32 && __VERIFIER_nondet_int() [L593] COND FALSE !(len < 32 && __VERIFIER_nondet_int()) [L564] SLL head = ((void *)0); [L565] COND TRUE len > 0 [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] new_head->next = head [L571] head = new_head [L572] len-- [L565] COND TRUE len > 0 [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] new_head->next = head [L571] head = new_head [L572] len-- [L565] COND TRUE len > 0 [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] new_head->next = head [L571] head = new_head [L572] len-- [L565] COND FALSE !(len > 0) [L574] return head; [L596] SLL s = sll_create(len + 1); [L577] int len = 0; [L578] COND TRUE \read(head) [L579] len++ [L580] EXPR head->next [L580] head = head->next [L578] COND TRUE \read(head) [L579] len++ [L580] EXPR head->next [L580] head = head->next [L578] COND TRUE \read(head) [L579] len++ [L580] EXPR head->next [L580] head = head->next [L578] COND FALSE !(\read(head)) [L582] return len; [L597] COND TRUE len != sll_length(s) [L602] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.5s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 258 SDslu, 250 SDs, 0 SdLazy, 396 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 197 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 10774 SizeOfPredicates, 8 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 21/47 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...