/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:18:20,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:18:20,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:18:20,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 21:18:20,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 21:18:20,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 21:18:20,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 21:18:20,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 21:18:20,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 21:18:20,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 21:18:20,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 21:18:20,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 21:18:20,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:18:20,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:18:20,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:18:20,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:18:20,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:18:20,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:18:20,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:18:20,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:18:20,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:18:20,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:18:20,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:18:20,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:18:20,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:18:20,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:18:20,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:18:20,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:18:20,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:18:20,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:18:20,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:18:20,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:18:20,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:18:20,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:18:20,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:18:20,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:18:20,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:18:20,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:18:20,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:18:20,632 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:18:20,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:18:20,633 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:18:20,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:18:20,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:18:20,634 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:18:20,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:18:20,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:18:20,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:18:20,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:18:20,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:18:20,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:18:20,636 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:18:21,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:18:21,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:18:21,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:18:21,088 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:18:21,089 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:18:21,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2021-02-21 21:18:21,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72f26a782/487272f56b9041c387f761b44454d836/FLAG62427cfaa [2021-02-21 21:18:21,897 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:18:21,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2021-02-21 21:18:21,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72f26a782/487272f56b9041c387f761b44454d836/FLAG62427cfaa [2021-02-21 21:18:22,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72f26a782/487272f56b9041c387f761b44454d836 [2021-02-21 21:18:22,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:18:22,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:18:22,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:18:22,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:18:22,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:18:22,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:18:22" (1/1) ... [2021-02-21 21:18:22,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6491a8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22, skipping insertion in model container [2021-02-21 21:18:22,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:18:22" (1/1) ... [2021-02-21 21:18:22,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:18:22,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:18:22,438 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i[825,838] [2021-02-21 21:18:22,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:18:22,466 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:18:22,481 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i[825,838] [2021-02-21 21:18:22,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:18:22,504 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:18:22,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22 WrapperNode [2021-02-21 21:18:22,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:18:22,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:18:22,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:18:22,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:18:22,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22" (1/1) ... [2021-02-21 21:18:22,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22" (1/1) ... [2021-02-21 21:18:22,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22" (1/1) ... [2021-02-21 21:18:22,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22" (1/1) ... [2021-02-21 21:18:22,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22" (1/1) ... [2021-02-21 21:18:22,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22" (1/1) ... [2021-02-21 21:18:22,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22" (1/1) ... [2021-02-21 21:18:22,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:18:22,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:18:22,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:18:22,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:18:22,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22" (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 [2021-02-21 21:18:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:18:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:18:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:18:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:18:22,655 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2021-02-21 21:18:22,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:18:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:18:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:18:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 21:18:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 21:18:22,656 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:18:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:18:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:18:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2021-02-21 21:18:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:18:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:18:22,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:18:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:18:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:18:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:18:22,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:18:23,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:18:23,075 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 21:18:23,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:18:23 BoogieIcfgContainer [2021-02-21 21:18:23,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:18:23,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:18:23,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:18:23,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:18:23,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:18:22" (1/3) ... [2021-02-21 21:18:23,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c24e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:18:23, skipping insertion in model container [2021-02-21 21:18:23,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:22" (2/3) ... [2021-02-21 21:18:23,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c24e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:18:23, skipping insertion in model container [2021-02-21 21:18:23,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:18:23" (3/3) ... [2021-02-21 21:18:23,107 INFO L111 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2021-02-21 21:18:23,124 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:18:23,139 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:18:23,176 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:18:23,220 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:18:23,220 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:18:23,220 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:18:23,221 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:18:23,221 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:18:23,221 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:18:23,221 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:18:23,221 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:18:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2021-02-21 21:18:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-21 21:18:23,268 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:23,270 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, 1] [2021-02-21 21:18:23,270 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:23,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:23,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1838508197, now seen corresponding path program 1 times [2021-02-21 21:18:23,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:23,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413405029] [2021-02-21 21:18:23,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:23,409 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:18:23,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 21:18:23,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 21:18:23,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 21:18:23,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 21:18:23,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:18:23,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:18:23,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:18:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:18:23,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413405029] [2021-02-21 21:18:23,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:18:23,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 21:18:23,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906314985] [2021-02-21 21:18:23,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 21:18:23,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:18:24,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 21:18:24,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-21 21:18:24,004 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 10 states. [2021-02-21 21:18:24,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:18:24,569 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2021-02-21 21:18:24,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-21 21:18:24,571 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2021-02-21 21:18:24,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:18:24,580 INFO L225 Difference]: With dead ends: 81 [2021-02-21 21:18:24,580 INFO L226 Difference]: Without dead ends: 41 [2021-02-21 21:18:24,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-02-21 21:18:24,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-02-21 21:18:24,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2021-02-21 21:18:24,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-21 21:18:24,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-02-21 21:18:24,636 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 25 [2021-02-21 21:18:24,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:18:24,637 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-02-21 21:18:24,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 21:18:24,637 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-02-21 21:18:24,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-21 21:18:24,638 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:24,639 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2021-02-21 21:18:24,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:18:24,639 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:24,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:24,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1450458719, now seen corresponding path program 1 times [2021-02-21 21:18:24,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:24,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622174619] [2021-02-21 21:18:24,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:24,674 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:18:24,676 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:24,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:24,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:18:24,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-21 21:18:24,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 21:18:24,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 21:18:24,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 21:18:24,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-21 21:18:24,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:18:24,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:18:24,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:18:24,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:24,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:18:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:24,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:24,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-02-21 21:18:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:24,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:24,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:24,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:18:24,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622174619] [2021-02-21 21:18:24,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:18:24,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-21 21:18:24,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016499231] [2021-02-21 21:18:24,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-21 21:18:24,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:18:24,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-21 21:18:24,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-02-21 21:18:24,937 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 12 states. [2021-02-21 21:18:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:18:25,487 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2021-02-21 21:18:25,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-21 21:18:25,489 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2021-02-21 21:18:25,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:18:25,494 INFO L225 Difference]: With dead ends: 53 [2021-02-21 21:18:25,494 INFO L226 Difference]: Without dead ends: 51 [2021-02-21 21:18:25,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2021-02-21 21:18:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-02-21 21:18:25,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2021-02-21 21:18:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-02-21 21:18:25,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-02-21 21:18:25,530 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 35 [2021-02-21 21:18:25,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:18:25,531 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-02-21 21:18:25,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-21 21:18:25,531 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-02-21 21:18:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-21 21:18:25,534 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:25,534 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:18:25,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:18:25,535 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:25,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:25,536 INFO L82 PathProgramCache]: Analyzing trace with hash -412356509, now seen corresponding path program 2 times [2021-02-21 21:18:25,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:25,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27203918] [2021-02-21 21:18:25,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:25,556 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:18:25,560 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:18:25,592 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:18:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:18:25,617 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:18:25,653 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 21:18:25,653 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 21:18:25,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:18:25,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:18:25 BoogieIcfgContainer [2021-02-21 21:18:25,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:18:25,672 INFO L168 Benchmark]: Toolchain (without parser) took 3425.75 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.2 MB in the beginning and 67.8 MB in the end (delta: 59.5 MB). Peak memory consumption was 91.2 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:25,673 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 151.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:18:25,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.35 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 116.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:25,675 INFO L168 Benchmark]: Boogie Preprocessor took 41.32 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:25,676 INFO L168 Benchmark]: RCFGBuilder took 528.88 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 129.9 MB in the end (delta: -14.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:25,677 INFO L168 Benchmark]: TraceAbstraction took 2589.14 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 129.4 MB in the beginning and 67.8 MB in the end (delta: 61.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:25,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 151.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 247.35 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 116.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.32 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 528.88 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 129.9 MB in the end (delta: -14.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2589.14 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 129.4 MB in the beginning and 67.8 MB in the end (delta: 61.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] Char *tmp; [L40] Char pathbuf[1 +1]; [L42] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L44] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 [L46] CALL glob2 (pathbuf, bound) [L27] Char *p; [L29] p = pathbuf [L29] COND TRUE p <= pathlim [L31] CALL __VERIFIER_assert(p<=tmp) [L15] COND FALSE !(!(cond)) [L31] RET __VERIFIER_assert(p<=tmp) [L32] *p = 1 [L29] p++ [L29] COND TRUE p <= pathlim [L31] CALL __VERIFIER_assert(p<=tmp) [L15] COND FALSE !(!(cond)) [L31] RET __VERIFIER_assert(p<=tmp) [L32] *p = 1 [L29] p++ [L29] COND TRUE p <= pathlim [L31] CALL __VERIFIER_assert(p<=tmp) [L15] COND TRUE !(cond) [L16] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 150 SDslu, 205 SDs, 0 SdLazy, 303 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=2, 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...