/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -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-36cd7be [2021-02-24 00:17:12,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:17:12,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:17:12,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:17:12,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:17:12,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:17:12,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:17:12,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:17:12,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:17:12,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:17:12,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:17:12,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:17:12,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:17:12,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:17:12,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:17:12,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:17:12,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 00:17:12,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:17:12,454 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:17:12,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:17:12,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:17:12,459 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:17:12,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:17:12,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:17:12,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:17:12,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:17:12,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:17:12,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:17:12,461 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:17:12,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:17:12,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:17:12,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:17:12,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:17:12,462 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:17:12,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:17:12,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:17:12,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:17:12,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:17:12,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:17:12,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:17:12,464 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:17:12,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:17:12,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:17:12,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:17:12,908 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:17:12,909 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:17:12,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2021-02-24 00:17:12,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946a7d99d/8b42b973e2214d50a79fa5a528e920c7/FLAG202cf3030 [2021-02-24 00:17:13,637 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:17:13,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_NetBSD-libc_loop.i [2021-02-24 00:17:13,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946a7d99d/8b42b973e2214d50a79fa5a528e920c7/FLAG202cf3030 [2021-02-24 00:17:13,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946a7d99d/8b42b973e2214d50a79fa5a528e920c7 [2021-02-24 00:17:13,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:17:14,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:17:14,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:17:14,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:17:14,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:17:14,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:17:13" (1/1) ... [2021-02-24 00:17:14,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af3e5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14, skipping insertion in model container [2021-02-24 00:17:14,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:17:13" (1/1) ... [2021-02-24 00:17:14,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:17:14,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:17:14,183 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] [2021-02-24 00:17:14,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:17:14,209 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:17:14,223 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] [2021-02-24 00:17:14,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:17:14,250 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:17:14,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14 WrapperNode [2021-02-24 00:17:14,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:17:14,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:17:14,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:17:14,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:17:14,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:17:14,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:17:14,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:17:14,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:17:14,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (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 [2021-02-24 00:17:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:17:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:17:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:17:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 00:17:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2021-02-24 00:17:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:17:14,427 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:17:14,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:17:14,428 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 00:17:14,428 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 00:17:14,428 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:17:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:17:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:17:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2021-02-24 00:17:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:17:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:17:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:17:14,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:17:14,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:17:14,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:17:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:17:14,745 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:17:14,746 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 00:17:14,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:17:14 BoogieIcfgContainer [2021-02-24 00:17:14,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:17:14,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:17:14,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:17:14,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:17:14,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:17:13" (1/3) ... [2021-02-24 00:17:14,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e6ce20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:17:14, skipping insertion in model container [2021-02-24 00:17:14,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (2/3) ... [2021-02-24 00:17:14,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e6ce20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:17:14, skipping insertion in model container [2021-02-24 00:17:14,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:17:14" (3/3) ... [2021-02-24 00:17:14,783 INFO L111 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2021-02-24 00:17:14,797 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:17:14,807 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:17:14,833 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:17:14,862 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:17:14,863 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:17:14,863 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:17:14,863 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:17:14,863 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:17:14,863 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:17:14,863 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:17:14,864 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:17:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2021-02-24 00:17:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-24 00:17:14,894 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:14,895 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] [2021-02-24 00:17:14,895 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:14,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:14,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1838508197, now seen corresponding path program 1 times [2021-02-24 00:17:14,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:14,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531278735] [2021-02-24 00:17:14,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:15,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:15,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:15,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 00:17:15,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 00:17:15,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 00:17:15,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 00:17:15,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:15,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:15,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:15,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:15,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:17:15,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531278735] [2021-02-24 00:17:15,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:17:15,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 00:17:15,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748246416] [2021-02-24 00:17:15,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 00:17:15,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:15,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 00:17:15,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:17:15,703 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 10 states. [2021-02-24 00:17:16,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:16,249 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2021-02-24 00:17:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 00:17:16,251 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2021-02-24 00:17:16,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:16,259 INFO L225 Difference]: With dead ends: 81 [2021-02-24 00:17:16,259 INFO L226 Difference]: Without dead ends: 41 [2021-02-24 00:17:16,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-02-24 00:17:16,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-02-24 00:17:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2021-02-24 00:17:16,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-24 00:17:16,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-02-24 00:17:16,312 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 25 [2021-02-24 00:17:16,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:16,312 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-02-24 00:17:16,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 00:17:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-02-24 00:17:16,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-24 00:17:16,314 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:16,314 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] [2021-02-24 00:17:16,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:17:16,315 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:16,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:16,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1450458719, now seen corresponding path program 1 times [2021-02-24 00:17:16,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:16,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777748352] [2021-02-24 00:17:16,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:16,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:16,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:16,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 00:17:16,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 00:17:16,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 00:17:16,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 00:17:16,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 00:17:16,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 00:17:16,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:16,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:16,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:16,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:16,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:16,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-02-24 00:17:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:16,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:16,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:16,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:17:16,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777748352] [2021-02-24 00:17:16,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-24 00:17:16,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-02-24 00:17:16,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976095080] [2021-02-24 00:17:16,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 00:17:16,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:16,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 00:17:16,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-02-24 00:17:16,544 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 12 states. [2021-02-24 00:17:17,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:17,097 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2021-02-24 00:17:17,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 00:17:17,098 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2021-02-24 00:17:17,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:17,103 INFO L225 Difference]: With dead ends: 53 [2021-02-24 00:17:17,103 INFO L226 Difference]: Without dead ends: 51 [2021-02-24 00:17:17,104 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 [2021-02-24 00:17:17,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-02-24 00:17:17,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2021-02-24 00:17:17,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-02-24 00:17:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-02-24 00:17:17,133 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 35 [2021-02-24 00:17:17,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:17,134 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-02-24 00:17:17,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 00:17:17,134 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-02-24 00:17:17,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-24 00:17:17,137 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:17,137 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] [2021-02-24 00:17:17,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:17:17,138 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:17,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:17,138 INFO L82 PathProgramCache]: Analyzing trace with hash -412356509, now seen corresponding path program 2 times [2021-02-24 00:17:17,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:17,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159444433] [2021-02-24 00:17:17,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 00:17:17,167 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 00:17:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 00:17:17,193 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 00:17:17,227 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 00:17:17,227 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 00:17:17,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:17:17,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:17:17 BoogieIcfgContainer [2021-02-24 00:17:17,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:17:17,301 INFO L168 Benchmark]: Toolchain (without parser) took 3312.23 ms. Allocated memory was 179.3 MB in the beginning and 216.0 MB in the end (delta: 36.7 MB). Free memory was 155.3 MB in the beginning and 145.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:17,302 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 179.3 MB. Free memory is still 152.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:17:17,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.36 ms. Allocated memory is still 179.3 MB. Free memory was 154.2 MB in the beginning and 144.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:17,304 INFO L168 Benchmark]: Boogie Preprocessor took 62.66 ms. Allocated memory is still 179.3 MB. Free memory was 144.8 MB in the beginning and 143.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:17,305 INFO L168 Benchmark]: RCFGBuilder took 431.45 ms. Allocated memory is still 179.3 MB. Free memory was 143.1 MB in the beginning and 126.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:17,306 INFO L168 Benchmark]: TraceAbstraction took 2535.89 ms. Allocated memory was 179.3 MB in the beginning and 216.0 MB in the end (delta: 36.7 MB). Free memory was 161.6 MB in the beginning and 145.4 MB in the end (delta: 16.2 MB). Peak memory consumption was 52.6 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:17,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 179.3 MB. Free memory is still 152.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 248.36 ms. Allocated memory is still 179.3 MB. Free memory was 154.2 MB in the beginning and 144.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.66 ms. Allocated memory is still 179.3 MB. Free memory was 144.8 MB in the beginning and 143.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 431.45 ms. Allocated memory is still 179.3 MB. Free memory was 143.1 MB in the beginning and 126.7 MB in the end (delta: 16.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2535.89 ms. Allocated memory was 179.3 MB in the beginning and 216.0 MB in the end (delta: 36.7 MB). Free memory was 161.6 MB in the beginning and 145.4 MB in the end (delta: 16.2 MB). Peak memory consumption was 52.6 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; VAL [\old(tmp)=52, \old(tmp)=56, tmp={0:0}] [L40] Char pathbuf[1 +1]; VAL [\old(tmp)=0, \old(tmp)=0, pathbuf={3:0}, tmp={0:0}] [L42] Char *bound = pathbuf + sizeof(pathbuf) - 1; VAL [\old(tmp)=0, \old(tmp)=0, bound={3:28}, pathbuf={3:0}, tmp={0:0}] [L44] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 VAL [\old(tmp)=0, \old(tmp)=0, bound={3:28}, pathbuf={3:0}, tmp={3:4}] [L46] CALL glob2 (pathbuf, bound) VAL [\old(tmp)=0, \old(tmp)=0, pathbuf={3:0}, pathlim={3:28}, tmp={3:4}] [L27] Char *p; VAL [\old(tmp)=0, \old(tmp)=0, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] p = pathbuf VAL [\old(tmp)=0, \old(tmp)=0, p={3:0}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={3:0}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L31] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={3:4}] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={3:4}] [L31] RET __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, p={3:0}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L32] *p = 1 VAL [\old(tmp)=0, \old(tmp)=0, p={3:0}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] p++ VAL [\old(tmp)=0, \old(tmp)=0, p={3:4}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={3:4}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L31] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={3:4}] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={3:4}] [L31] RET __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, p={3:4}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L32] *p = 1 VAL [\old(tmp)=0, \old(tmp)=0, p={3:4}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] p++ VAL [\old(tmp)=0, \old(tmp)=0, p={3:8}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L29] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, p={3:8}, pathbuf={3:0}, pathbuf={3:0}, pathlim={3:28}, pathlim={3:28}, tmp={3:4}] [L31] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, tmp={3:4}] [L15] COND TRUE !(cond) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={3:4}] [L16] reach_error() VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={3:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 9352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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...