./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/underapprox_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/underapprox_1-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/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 39d1cf9c8579a9e3ab0612befbfddbea31e87fbe .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 15:05:24,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:05:24,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:05:24,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:05:24,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:05:24,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:05:24,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:05:24,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:05:24,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:05:24,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:05:24,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:05:24,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:05:24,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:05:24,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:05:24,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:05:24,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:05:24,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:05:24,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:05:24,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:05:24,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:05:24,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:05:24,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:05:24,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:05:24,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:05:24,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:05:24,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:05:24,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:05:24,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:05:24,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:05:24,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:05:24,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:05:24,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:05:24,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:05:24,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:05:24,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:05:24,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:05:24,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:05:24,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:05:24,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:05:24,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:05:24,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:05:24,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:05:24,606 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:05:24,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:05:24,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:05:24,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:05:24,608 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:05:24,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:05:24,608 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:05:24,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:05:24,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:05:24,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:05:24,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:05:24,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:05:24,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:05:24,609 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:05:24,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:05:24,609 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:05:24,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:05:24,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:05:24,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:05:24,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:05:24,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:05:24,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:05:24,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:05:24,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:05:24,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:05:24,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:05:24,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:05:24,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:05:24,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:05:24,611 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_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/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 -> 39d1cf9c8579a9e3ab0612befbfddbea31e87fbe [2019-12-07 15:05:24,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:05:24,732 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:05:24,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:05:24,736 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:05:24,736 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:05:24,737 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/../../sv-benchmarks/c/loop-acceleration/underapprox_1-1.c [2019-12-07 15:05:24,776 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/data/09e3eaa1b/955761b31b6749ab98051516a16953f2/FLAGef991204d [2019-12-07 15:05:25,096 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:05:25,096 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/sv-benchmarks/c/loop-acceleration/underapprox_1-1.c [2019-12-07 15:05:25,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/data/09e3eaa1b/955761b31b6749ab98051516a16953f2/FLAGef991204d [2019-12-07 15:05:25,108 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/data/09e3eaa1b/955761b31b6749ab98051516a16953f2 [2019-12-07 15:05:25,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:05:25,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:05:25,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:05:25,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:05:25,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:05:25,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619ba5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25, skipping insertion in model container [2019-12-07 15:05:25,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:05:25,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:05:25,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:05:25,237 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:05:25,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:05:25,290 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:05:25,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25 WrapperNode [2019-12-07 15:05:25,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:05:25,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:05:25,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:05:25,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:05:25,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:05:25,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:05:25,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:05:25,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:05:25,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... [2019-12-07 15:05:25,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:05:25,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:05:25,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:05:25,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:05:25,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/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 [2019-12-07 15:05:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:05:25,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:05:25,456 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:05:25,457 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 15:05:25,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:05:25 BoogieIcfgContainer [2019-12-07 15:05:25,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:05:25,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:05:25,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:05:25,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:05:25,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:05:25" (1/3) ... [2019-12-07 15:05:25,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fa00ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:05:25, skipping insertion in model container [2019-12-07 15:05:25,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:05:25" (2/3) ... [2019-12-07 15:05:25,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fa00ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:05:25, skipping insertion in model container [2019-12-07 15:05:25,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:05:25" (3/3) ... [2019-12-07 15:05:25,463 INFO L109 eAbstractionObserver]: Analyzing ICFG underapprox_1-1.c [2019-12-07 15:05:25,469 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:05:25,473 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:05:25,480 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:05:25,495 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:05:25,495 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:05:25,495 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:05:25,495 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:05:25,495 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:05:25,495 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:05:25,496 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:05:25,496 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:05:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 15:05:25,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 15:05:25,507 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:05:25,508 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 15:05:25,508 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:05:25,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:05:25,512 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-12-07 15:05:25,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:05:25,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285673157] [2019-12-07 15:05:25,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:05:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:05:25,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:25,637 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285673157] [2019-12-07 15:05:25,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:05:25,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:05:25,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595726264] [2019-12-07 15:05:25,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:05:25,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:05:25,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:05:25,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:05:25,651 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-12-07 15:05:25,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:05:25,670 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-12-07 15:05:25,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:05:25,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 15:05:25,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:05:25,679 INFO L225 Difference]: With dead ends: 17 [2019-12-07 15:05:25,679 INFO L226 Difference]: Without dead ends: 7 [2019-12-07 15:05:25,681 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:05:25,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-07 15:05:25,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 15:05:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 15:05:25,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-12-07 15:05:25,701 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-12-07 15:05:25,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:05:25,701 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-12-07 15:05:25,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:05:25,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-12-07 15:05:25,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 15:05:25,701 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:05:25,701 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:05:25,702 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:05:25,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:05:25,702 INFO L82 PathProgramCache]: Analyzing trace with hash 925620370, now seen corresponding path program 1 times [2019-12-07 15:05:25,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:05:25,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348182902] [2019-12-07 15:05:25,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:05:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:05:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:25,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348182902] [2019-12-07 15:05:25,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001869930] [2019-12-07 15:05:25,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/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 [2019-12-07 15:05:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:05:25,775 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:05:25,778 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:05:25,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:25,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:05:25,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2019-12-07 15:05:25,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227742841] [2019-12-07 15:05:25,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:05:25,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:05:25,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:05:25,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:05:25,805 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-12-07 15:05:25,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:05:25,819 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-12-07 15:05:25,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:05:25,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-12-07 15:05:25,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:05:25,820 INFO L225 Difference]: With dead ends: 12 [2019-12-07 15:05:25,820 INFO L226 Difference]: Without dead ends: 8 [2019-12-07 15:05:25,821 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:05:25,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-12-07 15:05:25,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-12-07 15:05:25,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 15:05:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-07 15:05:25,823 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-12-07 15:05:25,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:05:25,823 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-12-07 15:05:25,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:05:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-07 15:05:25,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 15:05:25,823 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:05:25,824 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-12-07 15:05:26,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:05:26,025 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:05:26,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:05:26,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1368874232, now seen corresponding path program 2 times [2019-12-07 15:05:26,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:05:26,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108821635] [2019-12-07 15:05:26,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:05:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:05:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:26,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108821635] [2019-12-07 15:05:26,109 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703303627] [2019-12-07 15:05:26,109 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/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 [2019-12-07 15:05:26,128 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 15:05:26,128 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 15:05:26,129 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:05:26,129 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:05:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:26,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:05:26,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-12-07 15:05:26,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327502473] [2019-12-07 15:05:26,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:05:26,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:05:26,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:05:26,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:05:26,147 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2019-12-07 15:05:26,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:05:26,162 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-12-07 15:05:26,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:05:26,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-12-07 15:05:26,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:05:26,163 INFO L225 Difference]: With dead ends: 13 [2019-12-07 15:05:26,163 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 15:05:26,163 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:05:26,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 15:05:26,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-07 15:05:26,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 15:05:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-12-07 15:05:26,165 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-12-07 15:05:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:05:26,165 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-12-07 15:05:26,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:05:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-12-07 15:05:26,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 15:05:26,166 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:05:26,166 INFO L410 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2019-12-07 15:05:26,366 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:05:26,367 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:05:26,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:05:26,368 INFO L82 PathProgramCache]: Analyzing trace with hash 516237138, now seen corresponding path program 3 times [2019-12-07 15:05:26,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:05:26,369 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676143613] [2019-12-07 15:05:26,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:05:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:05:26,459 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:26,459 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676143613] [2019-12-07 15:05:26,459 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512799324] [2019-12-07 15:05:26,459 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/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 [2019-12-07 15:05:26,477 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-12-07 15:05:26,477 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 15:05:26,477 INFO L264 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 15:05:26,478 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:05:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:26,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:05:26,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-12-07 15:05:26,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127667433] [2019-12-07 15:05:26,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 15:05:26,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:05:26,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 15:05:26,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:05:26,493 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-12-07 15:05:26,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:05:26,515 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-12-07 15:05:26,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:05:26,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-12-07 15:05:26,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:05:26,516 INFO L225 Difference]: With dead ends: 14 [2019-12-07 15:05:26,516 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 15:05:26,517 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:05:26,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 15:05:26,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 15:05:26,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 15:05:26,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-12-07 15:05:26,520 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-12-07 15:05:26,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:05:26,520 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-12-07 15:05:26,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 15:05:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-12-07 15:05:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 15:05:26,520 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:05:26,520 INFO L410 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2019-12-07 15:05:26,721 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:05:26,722 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:05:26,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:05:26,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1174852536, now seen corresponding path program 4 times [2019-12-07 15:05:26,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:05:26,724 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780205812] [2019-12-07 15:05:26,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:05:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:05:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:26,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780205812] [2019-12-07 15:05:26,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372966295] [2019-12-07 15:05:26,814 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:05:26,832 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 15:05:26,833 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 15:05:26,833 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:05:26,834 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:05:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:26,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:05:26,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-12-07 15:05:26,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185709739] [2019-12-07 15:05:26,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 15:05:26,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:05:26,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 15:05:26,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:05:26,850 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2019-12-07 15:05:26,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:05:26,872 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-12-07 15:05:26,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:05:26,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-12-07 15:05:26,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:05:26,873 INFO L225 Difference]: With dead ends: 15 [2019-12-07 15:05:26,873 INFO L226 Difference]: Without dead ends: 11 [2019-12-07 15:05:26,873 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:05:26,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-07 15:05:26,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 15:05:26,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 15:05:26,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-12-07 15:05:26,875 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2019-12-07 15:05:26,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:05:26,876 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-12-07 15:05:26,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 15:05:26,876 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-12-07 15:05:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:05:26,876 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:05:26,876 INFO L410 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1] [2019-12-07 15:05:27,077 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:05:27,077 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:05:27,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:05:27,079 INFO L82 PathProgramCache]: Analyzing trace with hash -2059024878, now seen corresponding path program 5 times [2019-12-07 15:05:27,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:05:27,079 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751201770] [2019-12-07 15:05:27,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:05:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:05:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:27,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751201770] [2019-12-07 15:05:27,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984502958] [2019-12-07 15:05:27,253 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:05:27,278 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2019-12-07 15:05:27,278 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 15:05:27,279 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 15:05:27,280 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:05:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:05:27,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:05:27,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-12-07 15:05:27,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293008029] [2019-12-07 15:05:27,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 15:05:27,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:05:27,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 15:05:27,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:05:27,294 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 9 states. [2019-12-07 15:05:27,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:05:27,324 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-12-07 15:05:27,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 15:05:27,324 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2019-12-07 15:05:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:05:27,325 INFO L225 Difference]: With dead ends: 16 [2019-12-07 15:05:27,325 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 15:05:27,325 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:05:27,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 15:05:27,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 15:05:27,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 15:05:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-12-07 15:05:27,328 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-12-07 15:05:27,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:05:27,328 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-12-07 15:05:27,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 15:05:27,328 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-12-07 15:05:27,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:05:27,329 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:05:27,329 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1] [2019-12-07 15:05:27,529 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:05:27,530 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:05:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:05:27,530 INFO L82 PathProgramCache]: Analyzing trace with hash 596403592, now seen corresponding path program 6 times [2019-12-07 15:05:27,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:05:27,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714117458] [2019-12-07 15:05:27,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:05:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:05:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:05:27,584 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:05:27,585 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:05:27,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:05:27 BoogieIcfgContainer [2019-12-07 15:05:27,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:05:27,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:05:27,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:05:27,597 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:05:27,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:05:25" (3/4) ... [2019-12-07 15:05:27,599 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:05:27,629 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0a79b18d-15a8-4db7-b9ba-76c57d140d8c/bin/uautomizer/witness.graphml [2019-12-07 15:05:27,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:05:27,631 INFO L168 Benchmark]: Toolchain (without parser) took 2519.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 947.8 MB in the beginning and 948.1 MB in the end (delta: -275.2 kB). Peak memory consumption was 106.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:05:27,631 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:05:27,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:05:27,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:05:27,632 INFO L168 Benchmark]: Boogie Preprocessor took 10.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:05:27,632 INFO L168 Benchmark]: RCFGBuilder took 132.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:05:27,632 INFO L168 Benchmark]: TraceAbstraction took 2138.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 953.4 MB in the end (delta: 130.8 MB). Peak memory consumption was 130.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:05:27,633 INFO L168 Benchmark]: Witness Printer took 32.09 ms. Allocated memory is still 1.1 GB. Free memory was 953.4 MB in the beginning and 948.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:05:27,634 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 132.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2138.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 953.4 MB in the end (delta: 130.8 MB). Peak memory consumption was 130.8 MB. Max. memory is 11.5 GB. * Witness Printer took 32.09 ms. Allocated memory is still 1.1 GB. Free memory was 953.4 MB in the beginning and 948.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] unsigned int x = 0; [L12] unsigned int y = 1; [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND TRUE x < 6 [L15] x++ [L16] y *= 2 [L14] COND FALSE !(x < 6) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 0 SDslu, 69 SDs, 0 SdLazy, 135 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 2490 SizeOfPredicates, 5 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/70 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...