/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/verifythis/tree_max_incorrect.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:11:55,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:11:55,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:11:55,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:11:55,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:11:55,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:11:55,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:11:55,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:11:55,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:11:55,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:11:55,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:11:55,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:11:55,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:11:55,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:11:55,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:11:55,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:11:55,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:11:55,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:11:55,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:11:55,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:11:55,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:11:55,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:11:55,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:11:55,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:11:55,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 11:11:55,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 11:11:55,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 11:11:55,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 11:11:55,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 11:11:55,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 11:11:55,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 11:11:55,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 11:11:55,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 11:11:55,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 11:11:55,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 11:11:55,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 11:11:55,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 11:11:55,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 11:11:55,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:11:55,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:11:55,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:11:55,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:11:55,129 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:11:55,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:11:55,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:11:55,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:11:55,131 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:11:55,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:11:55,132 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:11:55,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:11:55,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:11:55,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:11:55,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:11:55,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:11:55,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:11:55,133 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:11:55,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:11:55,133 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:11:55,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:11:55,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:11:55,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:11:55,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:11:55,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:11:55,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:11:55,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:11:55,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:11:55,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:11:55,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:11:55,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:55,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:11:55,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:11:55,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:11:55,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:11:55,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:11:55,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:11:55,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:11:55,457 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:11:55,457 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/tree_max_incorrect.c [2020-07-21 11:11:55,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28bdfdb57/b0bee5b3240a4075b7c35397a5af6a90/FLAGe5652e48a [2020-07-21 11:11:56,040 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:11:56,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/verifythis/tree_max_incorrect.c [2020-07-21 11:11:56,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28bdfdb57/b0bee5b3240a4075b7c35397a5af6a90/FLAGe5652e48a [2020-07-21 11:11:56,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28bdfdb57/b0bee5b3240a4075b7c35397a5af6a90 [2020-07-21 11:11:56,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:11:56,423 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:11:56,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:11:56,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:11:56,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:11:56,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:11:56" (1/1) ... [2020-07-21 11:11:56,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56940ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56, skipping insertion in model container [2020-07-21 11:11:56,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:11:56" (1/1) ... [2020-07-21 11:11:56,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:11:56,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:11:56,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:11:56,672 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:11:56,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:11:56,710 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:11:56,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56 WrapperNode [2020-07-21 11:11:56,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:11:56,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:11:56,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:11:56,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:11:56,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56" (1/1) ... [2020-07-21 11:11:56,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56" (1/1) ... [2020-07-21 11:11:56,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56" (1/1) ... [2020-07-21 11:11:56,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56" (1/1) ... [2020-07-21 11:11:56,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56" (1/1) ... [2020-07-21 11:11:56,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56" (1/1) ... [2020-07-21 11:11:56,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56" (1/1) ... [2020-07-21 11:11:56,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:11:56,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:11:56,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:11:56,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:11:56,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-21 11:11:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:11:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:11:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 11:11:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2020-07-21 11:11:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-07-21 11:11:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-07-21 11:11:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2020-07-21 11:11:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:11:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 11:11:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 11:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-21 11:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 11:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2020-07-21 11:11:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 11:11:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 11:11:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 11:11:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-07-21 11:11:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 11:11:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-21 11:11:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 11:11:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure task [2020-07-21 11:11:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:11:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:11:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:11:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 11:11:57,238 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:11:57,239 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 11:11:57,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:11:57 BoogieIcfgContainer [2020-07-21 11:11:57,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:11:57,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:11:57,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:11:57,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:11:57,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:11:56" (1/3) ... [2020-07-21 11:11:57,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be0ef06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:11:57, skipping insertion in model container [2020-07-21 11:11:57,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:11:56" (2/3) ... [2020-07-21 11:11:57,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be0ef06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:11:57, skipping insertion in model container [2020-07-21 11:11:57,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:11:57" (3/3) ... [2020-07-21 11:11:57,261 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_max_incorrect.c [2020-07-21 11:11:57,274 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:11:57,285 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:11:57,308 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:11:57,343 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:11:57,344 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:11:57,344 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:11:57,344 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:11:57,345 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:11:57,345 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:11:57,346 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:11:57,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:11:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-07-21 11:11:57,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-21 11:11:57,423 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:11:57,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:11:57,425 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:11:57,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:11:57,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1628582097, now seen corresponding path program 1 times [2020-07-21 11:11:57,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:11:57,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289440398] [2020-07-21 11:11:57,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:11:57,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-21 11:11:57,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:11:57,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:11:57,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:11:57,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289440398] [2020-07-21 11:11:57,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:11:57,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 11:11:57,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786223093] [2020-07-21 11:11:57,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 11:11:57,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:11:57,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 11:11:57,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:11:57,791 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 8 states. [2020-07-21 11:11:58,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:11:58,030 INFO L93 Difference]: Finished difference Result 91 states and 117 transitions. [2020-07-21 11:11:58,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 11:11:58,033 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-07-21 11:11:58,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:11:58,049 INFO L225 Difference]: With dead ends: 91 [2020-07-21 11:11:58,050 INFO L226 Difference]: Without dead ends: 42 [2020-07-21 11:11:58,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-21 11:11:58,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-21 11:11:58,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-21 11:11:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-21 11:11:58,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2020-07-21 11:11:58,112 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 24 [2020-07-21 11:11:58,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:11:58,113 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2020-07-21 11:11:58,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 11:11:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2020-07-21 11:11:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-21 11:11:58,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:11:58,117 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:11:58,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:58,331 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:11:58,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:11:58,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1712930862, now seen corresponding path program 1 times [2020-07-21 11:11:58,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:11:58,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169584265] [2020-07-21 11:11:58,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:11:58,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-21 11:11:58,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:11:58,590 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:11:58,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:11:58,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169584265] [2020-07-21 11:11:58,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:11:58,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-21 11:11:58,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110312092] [2020-07-21 11:11:58,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 11:11:58,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:11:58,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 11:11:58,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:11:58,595 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 12 states. [2020-07-21 11:11:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:11:58,813 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2020-07-21 11:11:58,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 11:11:58,814 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2020-07-21 11:11:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:11:58,816 INFO L225 Difference]: With dead ends: 61 [2020-07-21 11:11:58,816 INFO L226 Difference]: Without dead ends: 44 [2020-07-21 11:11:58,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2020-07-21 11:11:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-21 11:11:58,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-07-21 11:11:58,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-21 11:11:58,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2020-07-21 11:11:58,831 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 34 [2020-07-21 11:11:58,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:11:58,831 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2020-07-21 11:11:58,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 11:11:58,832 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2020-07-21 11:11:58,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 11:11:58,834 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:11:58,834 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:11:59,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:59,048 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:11:59,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:11:59,049 INFO L82 PathProgramCache]: Analyzing trace with hash 27177221, now seen corresponding path program 1 times [2020-07-21 11:11:59,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:11:59,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084955814] [2020-07-21 11:11:59,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 11:11:59,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 11:11:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 11:11:59,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 11:11:59,236 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 11:11:59,236 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 11:11:59,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:11:59,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:11:59 BoogieIcfgContainer [2020-07-21 11:11:59,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:11:59,505 INFO L168 Benchmark]: Toolchain (without parser) took 3082.67 ms. Allocated memory was 138.4 MB in the beginning and 236.5 MB in the end (delta: 98.0 MB). Free memory was 103.1 MB in the beginning and 150.6 MB in the end (delta: -47.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:59,506 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 11:11:59,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.64 ms. Allocated memory is still 138.4 MB. Free memory was 102.7 MB in the beginning and 92.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:59,508 INFO L168 Benchmark]: Boogie Preprocessor took 158.83 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 92.3 MB in the beginning and 182.0 MB in the end (delta: -89.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:59,509 INFO L168 Benchmark]: RCFGBuilder took 377.21 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 161.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:59,511 INFO L168 Benchmark]: TraceAbstraction took 2252.39 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 160.6 MB in the beginning and 150.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:11:59,515 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 286.64 ms. Allocated memory is still 138.4 MB. Free memory was 102.7 MB in the beginning and 92.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.83 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 92.3 MB in the beginning and 182.0 MB in the end (delta: -89.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 377.21 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 161.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2252.39 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 160.6 MB in the beginning and 150.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L58] CALL, EXPR nondet_tree() [L18] COND FALSE !(__VERIFIER_nondet_bool()) [L21] struct node *n = (struct node *)malloc(sizeof(struct node)); [L22] n->data = __VERIFIER_nondet_int() [L23] CALL, EXPR nondet_tree() [L18] COND TRUE __VERIFIER_nondet_bool() [L19] return 0; VAL [\result={0:0}] [L23] RET, EXPR nondet_tree() VAL [malloc(sizeof(struct node))={-1:0}, n={-1:0}, nondet_tree()={0:0}] [L23] n->left = nondet_tree() [L24] CALL, EXPR nondet_tree() [L18] COND TRUE __VERIFIER_nondet_bool() [L19] return 0; VAL [\result={0:0}] [L24] RET, EXPR nondet_tree() VAL [malloc(sizeof(struct node))={-1:0}, n={-1:0}, nondet_tree()={0:0}] [L24] n->right = nondet_tree() [L25] return n; VAL [\result={-1:0}, malloc(sizeof(struct node))={-1:0}, n={-1:0}] [L58] RET, EXPR nondet_tree() VAL [nondet_tree()={-1:0}] [L58] CALL task(nondet_tree()) VAL [n={-1:0}] [L53] CALL, EXPR max(n) VAL [n={-1:0}] [L30] COND FALSE !(!n) [L33] EXPR n->left VAL [n={-1:0}, n={-1:0}, n->left={0:0}] [L33] CALL, EXPR max(n->left) VAL [n={0:0}] [L30] COND TRUE !n [L31] return -2147483648; VAL [\result=-2147483648, n={0:0}, n={0:0}] [L33] RET, EXPR max(n->left) VAL [max(n->left)=-2147483648, n={-1:0}, n={-1:0}, n->left={0:0}] [L33] int a = max(n->left); [L34] EXPR n->right VAL [a=-2147483648, n={-1:0}, n={-1:0}, n->right={0:0}] [L34] CALL, EXPR max(n->right) VAL [n={0:0}] [L30] COND TRUE !n [L31] return -2147483648; VAL [\result=-2147483648, n={0:0}, n={0:0}] [L34] RET, EXPR max(n->right) VAL [a=-2147483648, max(n->right)=-2147483648, n={-1:0}, n={-1:0}, n->right={0:0}] [L34] int b = max(n->right); [L35] COND TRUE a >= b [L35] return a; VAL [\result=-2147483648, a=-2147483648, b=-2147483648, n={-1:0}, n={-1:0}] [L53] RET, EXPR max(n) VAL [max(n)=-2147483648, n={-1:0}, n={-1:0}] [L53] int a = max(n); [L54] CALL check(n, a) VAL [\old(a)=-2147483648, n={-1:0}] [L41] COND TRUE \read(*n) [L42] EXPR n->data VAL [\old(a)=-2147483648, a=-2147483648, n={-1:0}, n={-1:0}, n->data=0] [L42] CALL __VERIFIER_assert(n->data <= a) VAL [\old(cond)=0] [L9] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 26 SDslu, 668 SDs, 0 SdLazy, 155 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 4444 SizeOfPredicates, 14 NumberOfNonLiveVariables, 290 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 9/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...