/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-token-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 17:54:53,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 17:54:53,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 17:54:53,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 17:54:53,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 17:54:53,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 17:54:53,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 17:54:53,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 17:54:53,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 17:54:53,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 17:54:53,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 17:54:53,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 17:54:53,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 17:54:53,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 17:54:53,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 17:54:53,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 17:54:53,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 17:54:53,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 17:54:53,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 17:54:53,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 17:54:53,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 17:54:53,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 17:54:53,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 17:54:53,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 17:54:53,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 17:54:53,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 17:54:53,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 17:54:53,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 17:54:53,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 17:54:53,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 17:54:53,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 17:54:53,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 17:54:53,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 17:54:53,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 17:54:53,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 17:54:53,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 17:54:53,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 17:54:53,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 17:54:53,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 17:54:53,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 17:54:53,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 17:54:53,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 17:54:53,581 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 17:54:53,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 17:54:53,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 17:54:53,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 17:54:53,585 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 17:54:53,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 17:54:53,585 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 17:54:53,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 17:54:53,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 17:54:53,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 17:54:53,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 17:54:53,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 17:54:53,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 17:54:53,587 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 17:54:53,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 17:54:53,587 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 17:54:53,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 17:54:53,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 17:54:53,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 17:54:53,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 17:54:53,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 17:54:53,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 17:54:53,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 17:54:53,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 17:54:53,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 17:54:53,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 17:54:53,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 17:54:53,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 17:54:53,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 17:54:53,591 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; [2020-08-18 17:54:53,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 17:54:53,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 17:54:53,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 17:54:53,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 17:54:53,953 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 17:54:53,954 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token-2.i [2020-08-18 17:54:54,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf0c6ec59/f066edd2c8f4489ab3ce0609459526ea/FLAG8406d6f34 [2020-08-18 17:54:54,562 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 17:54:54,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-token-2.i [2020-08-18 17:54:54,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf0c6ec59/f066edd2c8f4489ab3ce0609459526ea/FLAG8406d6f34 [2020-08-18 17:54:54,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cf0c6ec59/f066edd2c8f4489ab3ce0609459526ea [2020-08-18 17:54:54,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 17:54:54,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 17:54:54,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 17:54:54,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 17:54:54,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 17:54:54,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:54:54" (1/1) ... [2020-08-18 17:54:54,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb1485c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:54, skipping insertion in model container [2020-08-18 17:54:54,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:54:54" (1/1) ... [2020-08-18 17:54:54,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 17:54:54,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 17:54:55,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:54:55,384 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 17:54:55,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:54:55,536 INFO L208 MainTranslator]: Completed translation [2020-08-18 17:54:55,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55 WrapperNode [2020-08-18 17:54:55,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 17:54:55,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 17:54:55,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 17:54:55,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 17:54:55,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55" (1/1) ... [2020-08-18 17:54:55,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55" (1/1) ... [2020-08-18 17:54:55,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55" (1/1) ... [2020-08-18 17:54:55,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55" (1/1) ... [2020-08-18 17:54:55,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55" (1/1) ... [2020-08-18 17:54:55,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55" (1/1) ... [2020-08-18 17:54:55,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55" (1/1) ... [2020-08-18 17:54:55,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 17:54:55,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 17:54:55,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 17:54:55,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 17:54:55,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 17:54:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 17:54:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 17:54:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 17:54:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-18 17:54:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-18 17:54:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-18 17:54:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-18 17:54:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-18 17:54:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-18 17:54:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-18 17:54:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-18 17:54:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-18 17:54:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-18 17:54:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-18 17:54:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-18 17:54:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-18 17:54:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-18 17:54:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-18 17:54:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-18 17:54:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-18 17:54:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-18 17:54:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-18 17:54:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-18 17:54:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-18 17:54:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-18 17:54:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-18 17:54:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-18 17:54:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-18 17:54:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-18 17:54:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-18 17:54:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-18 17:54:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-18 17:54:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-18 17:54:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-18 17:54:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-18 17:54:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-18 17:54:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-18 17:54:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-18 17:54:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-18 17:54:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-18 17:54:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-18 17:54:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-18 17:54:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-18 17:54:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-18 17:54:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-18 17:54:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-18 17:54:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-18 17:54:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-18 17:54:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-18 17:54:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-18 17:54:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-18 17:54:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-18 17:54:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-18 17:54:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 17:54:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 17:54:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-18 17:54:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 17:54:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-18 17:54:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-18 17:54:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-18 17:54:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-18 17:54:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-18 17:54:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 17:54:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-18 17:54:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-18 17:54:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-18 17:54:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 17:54:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-18 17:54:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-18 17:54:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-18 17:54:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-18 17:54:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-18 17:54:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-18 17:54:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-18 17:54:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-18 17:54:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-18 17:54:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-18 17:54:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-18 17:54:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-18 17:54:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-18 17:54:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-18 17:54:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-18 17:54:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-18 17:54:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-18 17:54:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-18 17:54:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-18 17:54:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-18 17:54:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-18 17:54:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-18 17:54:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-18 17:54:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-18 17:54:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-18 17:54:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-18 17:54:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-18 17:54:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-18 17:54:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-18 17:54:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-18 17:54:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-18 17:54:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-18 17:54:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-18 17:54:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-18 17:54:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-18 17:54:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-18 17:54:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-18 17:54:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-18 17:54:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-18 17:54:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 17:54:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 17:54:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 17:54:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 17:54:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 17:54:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 17:54:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 17:54:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 17:54:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 17:54:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 17:54:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 17:54:56,233 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 17:54:56,233 INFO L295 CfgBuilder]: Removed 15 assume(true) statements. [2020-08-18 17:54:56,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:54:56 BoogieIcfgContainer [2020-08-18 17:54:56,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 17:54:56,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 17:54:56,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 17:54:56,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 17:54:56,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 05:54:54" (1/3) ... [2020-08-18 17:54:56,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b09f712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:54:56, skipping insertion in model container [2020-08-18 17:54:56,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:54:55" (2/3) ... [2020-08-18 17:54:56,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b09f712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:54:56, skipping insertion in model container [2020-08-18 17:54:56,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:54:56" (3/3) ... [2020-08-18 17:54:56,246 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2020-08-18 17:54:56,256 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 17:54:56,264 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-08-18 17:54:56,279 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-08-18 17:54:56,306 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 17:54:56,306 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 17:54:56,306 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 17:54:56,306 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 17:54:56,307 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 17:54:56,307 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 17:54:56,307 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 17:54:56,307 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 17:54:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-08-18 17:54:56,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-18 17:54:56,335 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:54:56,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:54:56,336 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:54:56,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:54:56,343 INFO L82 PathProgramCache]: Analyzing trace with hash 68430596, now seen corresponding path program 1 times [2020-08-18 17:54:56,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:54:56,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303774734] [2020-08-18 17:54:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:54:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:56,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:54:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:54:56,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303774734] [2020-08-18 17:54:56,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:54:56,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 17:54:56,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126926459] [2020-08-18 17:54:56,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 17:54:56,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:54:56,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 17:54:56,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 17:54:56,568 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 3 states. [2020-08-18 17:54:56,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:54:56,735 INFO L93 Difference]: Finished difference Result 92 states and 138 transitions. [2020-08-18 17:54:56,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 17:54:56,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-08-18 17:54:56,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:54:56,747 INFO L225 Difference]: With dead ends: 92 [2020-08-18 17:54:56,747 INFO L226 Difference]: Without dead ends: 43 [2020-08-18 17:54:56,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 17:54:56,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-18 17:54:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-18 17:54:56,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-18 17:54:56,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2020-08-18 17:54:56,786 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 10 [2020-08-18 17:54:56,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:54:56,787 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2020-08-18 17:54:56,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 17:54:56,787 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-08-18 17:54:56,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-08-18 17:54:56,788 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:54:56,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:54:56,788 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 17:54:56,789 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:54:56,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:54:56,789 INFO L82 PathProgramCache]: Analyzing trace with hash 67663975, now seen corresponding path program 1 times [2020-08-18 17:54:56,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:54:56,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356535058] [2020-08-18 17:54:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:54:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:56,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:54:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:54:56,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356535058] [2020-08-18 17:54:56,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:54:56,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 17:54:56,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501157254] [2020-08-18 17:54:56,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:54:56,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:54:56,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:54:56,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:54:56,929 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 5 states. [2020-08-18 17:54:57,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:54:57,079 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2020-08-18 17:54:57,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 17:54:57,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-08-18 17:54:57,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:54:57,081 INFO L225 Difference]: With dead ends: 43 [2020-08-18 17:54:57,081 INFO L226 Difference]: Without dead ends: 41 [2020-08-18 17:54:57,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 17:54:57,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-08-18 17:54:57,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-08-18 17:54:57,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-08-18 17:54:57,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2020-08-18 17:54:57,090 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 10 [2020-08-18 17:54:57,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:54:57,090 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2020-08-18 17:54:57,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:54:57,090 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-08-18 17:54:57,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-18 17:54:57,091 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:54:57,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:54:57,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 17:54:57,092 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:54:57,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:54:57,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2097539711, now seen corresponding path program 1 times [2020-08-18 17:54:57,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:54:57,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141569509] [2020-08-18 17:54:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:54:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:57,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:54:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:57,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:54:57,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141569509] [2020-08-18 17:54:57,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:54:57,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 17:54:57,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7083707] [2020-08-18 17:54:57,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:54:57,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:54:57,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:54:57,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:54:57,176 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 5 states. [2020-08-18 17:54:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:54:57,312 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2020-08-18 17:54:57,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 17:54:57,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-08-18 17:54:57,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:54:57,314 INFO L225 Difference]: With dead ends: 67 [2020-08-18 17:54:57,314 INFO L226 Difference]: Without dead ends: 65 [2020-08-18 17:54:57,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 17:54:57,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-08-18 17:54:57,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 39. [2020-08-18 17:54:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-08-18 17:54:57,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-08-18 17:54:57,324 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2020-08-18 17:54:57,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:54:57,324 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-08-18 17:54:57,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:54:57,324 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-08-18 17:54:57,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-18 17:54:57,325 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:54:57,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:54:57,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 17:54:57,326 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:54:57,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:54:57,326 INFO L82 PathProgramCache]: Analyzing trace with hash -409997773, now seen corresponding path program 1 times [2020-08-18 17:54:57,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:54:57,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978835422] [2020-08-18 17:54:57,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:54:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:57,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:54:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:54:57,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978835422] [2020-08-18 17:54:57,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:54:57,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 17:54:57,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708688926] [2020-08-18 17:54:57,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 17:54:57,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:54:57,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 17:54:57,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 17:54:57,402 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2020-08-18 17:54:57,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:54:57,539 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-08-18 17:54:57,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 17:54:57,540 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-18 17:54:57,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:54:57,541 INFO L225 Difference]: With dead ends: 39 [2020-08-18 17:54:57,541 INFO L226 Difference]: Without dead ends: 37 [2020-08-18 17:54:57,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 17:54:57,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-08-18 17:54:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-08-18 17:54:57,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-08-18 17:54:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-08-18 17:54:57,547 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 16 [2020-08-18 17:54:57,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:54:57,548 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-08-18 17:54:57,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 17:54:57,548 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-08-18 17:54:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-18 17:54:57,549 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:54:57,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:54:57,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 17:54:57,549 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:54:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:54:57,550 INFO L82 PathProgramCache]: Analyzing trace with hash -409960037, now seen corresponding path program 1 times [2020-08-18 17:54:57,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:54:57,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98109085] [2020-08-18 17:54:57,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:54:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:57,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:54:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:54:57,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:54:57,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98109085] [2020-08-18 17:54:57,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:54:57,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 17:54:57,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442559250] [2020-08-18 17:54:57,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 17:54:57,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:54:57,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 17:54:57,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 17:54:57,764 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 6 states. [2020-08-18 17:54:57,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:54:57,996 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2020-08-18 17:54:57,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 17:54:57,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-08-18 17:54:57,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:54:57,998 INFO L225 Difference]: With dead ends: 72 [2020-08-18 17:54:57,998 INFO L226 Difference]: Without dead ends: 48 [2020-08-18 17:54:57,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-18 17:54:58,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-08-18 17:54:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-08-18 17:54:58,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-18 17:54:58,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-08-18 17:54:58,007 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 16 [2020-08-18 17:54:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:54:58,007 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-08-18 17:54:58,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 17:54:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2020-08-18 17:54:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-18 17:54:58,009 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:54:58,009 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] [2020-08-18 17:54:58,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 17:54:58,009 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:54:58,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:54:58,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1407314597, now seen corresponding path program 1 times [2020-08-18 17:54:58,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:54:58,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202696698] [2020-08-18 17:54:58,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:54:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 17:54:58,036 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 17:54:58,036 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 17:54:58,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 17:54:58,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 05:54:58 BoogieIcfgContainer [2020-08-18 17:54:58,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 17:54:58,061 INFO L168 Benchmark]: Toolchain (without parser) took 3164.04 ms. Allocated memory was 141.0 MB in the beginning and 237.5 MB in the end (delta: 96.5 MB). Free memory was 103.0 MB in the beginning and 89.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 109.6 MB. Max. memory is 7.1 GB. [2020-08-18 17:54:58,062 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 17:54:58,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.87 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.8 MB in the beginning and 171.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-08-18 17:54:58,064 INFO L168 Benchmark]: Boogie Preprocessor took 67.67 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 168.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-18 17:54:58,065 INFO L168 Benchmark]: RCFGBuilder took 631.28 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 120.9 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2020-08-18 17:54:58,066 INFO L168 Benchmark]: TraceAbstraction took 1818.91 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 120.3 MB in the beginning and 89.9 MB in the end (delta: 30.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2020-08-18 17:54:58,070 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 638.87 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.8 MB in the beginning and 171.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.67 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 168.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 631.28 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 120.9 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1818.91 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 120.3 MB in the beginning and 89.9 MB in the end (delta: 30.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1026]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L993] SLL* head = malloc(sizeof(SLL)); [L994] head->next = ((void*)0) [L995] head->prev = ((void*)0) [L996] head->data = 0 [L998] SLL* x = head; [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1010] x->data = 1 [L1011] x->next = malloc(sizeof(SLL)) [L1012] EXPR x->next [L1012] x->next->prev = x [L1013] EXPR x->next [L1013] x->next->data = 2 [L1015] x = head [L1017] COND FALSE !(!(((void*)0) != x)) [L1019] EXPR x->data [L1019] COND FALSE !(1 != x->data) [L1024] EXPR x->data [L1024] COND FALSE !(!(1 == x->data)) [L1025] EXPR x->next [L1025] x = x->next [L1026] EXPR x->data [L1026] COND TRUE !(2 != x->data) [L1026] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 175 SDtfs, 91 SDslu, 234 SDs, 0 SdLazy, 350 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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...