/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:48:34,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:48:34,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:48:34,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:48:34,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:48:34,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:48:34,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:48:34,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:48:34,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:48:34,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:48:34,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:48:34,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:48:34,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:48:34,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:48:34,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:48:34,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:48:34,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:48:34,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:48:34,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:48:34,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:48:34,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:48:34,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:48:34,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:48:34,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:48:34,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 11:48:34,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 11:48:34,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 11:48:34,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 11:48:34,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 11:48:34,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 11:48:34,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 11:48:34,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 11:48:34,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 11:48:34,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 11:48:34,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 11:48:34,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 11:48:34,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 11:48:34,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 11:48:34,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:48:34,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:48:34,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:48:34,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 11:48:34,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:48:34,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:48:34,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:48:34,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:48:34,272 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:48:34,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:48:34,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:48:34,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:48:34,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:48:34,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:48:34,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:48:34,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:48:34,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:48:34,274 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:48:34,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:48:34,274 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:48:34,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:48:34,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:48:34,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:48:34,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:48:34,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:48:34,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:48:34,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:48:34,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:48:34,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:48:34,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:48:34,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:48:34,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:48:34,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:48:34,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:48:34,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:48:34,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:48:34,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:48:34,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:48:34,604 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:48:34,605 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-07-20 11:48:34,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555d04e86/11c43ffa0e8145b9b3ff72e6c44125d4/FLAG394d82cd9 [2020-07-20 11:48:35,148 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:48:35,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2020-07-20 11:48:35,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555d04e86/11c43ffa0e8145b9b3ff72e6c44125d4/FLAG394d82cd9 [2020-07-20 11:48:35,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555d04e86/11c43ffa0e8145b9b3ff72e6c44125d4 [2020-07-20 11:48:35,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:48:35,518 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:48:35,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:48:35,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:48:35,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:48:35,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:48:35" (1/1) ... [2020-07-20 11:48:35,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e716e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35, skipping insertion in model container [2020-07-20 11:48:35,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:48:35" (1/1) ... [2020-07-20 11:48:35,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:48:35,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:48:35,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:48:35,718 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:48:35,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:48:35,746 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:48:35,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35 WrapperNode [2020-07-20 11:48:35,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:48:35,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:48:35,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:48:35,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:48:35,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35" (1/1) ... [2020-07-20 11:48:35,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35" (1/1) ... [2020-07-20 11:48:35,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35" (1/1) ... [2020-07-20 11:48:35,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35" (1/1) ... [2020-07-20 11:48:35,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35" (1/1) ... [2020-07-20 11:48:35,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35" (1/1) ... [2020-07-20 11:48:35,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35" (1/1) ... [2020-07-20 11:48:35,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:48:35,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:48:35,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:48:35,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:48:35,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:48:35,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:48:35,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:48:35,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 11:48:35,925 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2020-07-20 11:48:35,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:48:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:48:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 11:48:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2020-07-20 11:48:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 11:48:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:48:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 11:48:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 11:48:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:48:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:48:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 11:48:36,147 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:48:36,148 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:48:36,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:48:36 BoogieIcfgContainer [2020-07-20 11:48:36,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:48:36,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:48:36,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:48:36,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:48:36,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:48:35" (1/3) ... [2020-07-20 11:48:36,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5a16a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:48:36, skipping insertion in model container [2020-07-20 11:48:36,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:48:35" (2/3) ... [2020-07-20 11:48:36,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5a16a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:48:36, skipping insertion in model container [2020-07-20 11:48:36,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:48:36" (3/3) ... [2020-07-20 11:48:36,165 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2020-07-20 11:48:36,179 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:48:36,188 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:48:36,204 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:48:36,229 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:48:36,230 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:48:36,230 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:48:36,230 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:48:36,230 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:48:36,231 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:48:36,231 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:48:36,231 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:48:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-07-20 11:48:36,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-20 11:48:36,259 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:48:36,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:48:36,261 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:48:36,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:48:36,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2020-07-20 11:48:36,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:48:36,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515535756] [2020-07-20 11:48:36,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:48:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:48:36,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 11:48:36,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:48:36,523 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:48:36,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:48:36,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:48:36,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515535756] [2020-07-20 11:48:36,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:48:36,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 11:48:36,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33217181] [2020-07-20 11:48:36,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:48:36,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:48:36,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:48:36,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:48:36,594 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2020-07-20 11:48:36,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:48:36,758 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-07-20 11:48:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:48:36,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-07-20 11:48:36,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:48:36,770 INFO L225 Difference]: With dead ends: 55 [2020-07-20 11:48:36,770 INFO L226 Difference]: Without dead ends: 26 [2020-07-20 11:48:36,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:48:36,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-20 11:48:36,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-07-20 11:48:36,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-20 11:48:36,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-07-20 11:48:36,819 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2020-07-20 11:48:36,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:48:36,820 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-07-20 11:48:36,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:48:36,821 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-07-20 11:48:36,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-20 11:48:36,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:48:36,823 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:48:37,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:48:37,038 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:48:37,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:48:37,039 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2020-07-20 11:48:37,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:48:37,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16161823] [2020-07-20 11:48:37,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:48:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:48:37,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-20 11:48:37,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:48:37,173 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 11:48:37,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:48:37,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:48:37,229 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:48:37,235 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:48:37,263 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:48:37,272 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 11:48:37,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:48:37,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16161823] [2020-07-20 11:48:37,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:48:37,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2020-07-20 11:48:37,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112151226] [2020-07-20 11:48:37,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 11:48:37,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:48:37,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 11:48:37,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:48:37,290 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 8 states. [2020-07-20 11:48:37,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:48:37,431 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2020-07-20 11:48:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:48:37,432 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-07-20 11:48:37,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:48:37,434 INFO L225 Difference]: With dead ends: 36 [2020-07-20 11:48:37,434 INFO L226 Difference]: Without dead ends: 34 [2020-07-20 11:48:37,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-20 11:48:37,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-20 11:48:37,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-07-20 11:48:37,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-20 11:48:37,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2020-07-20 11:48:37,444 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2020-07-20 11:48:37,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:48:37,444 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2020-07-20 11:48:37,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 11:48:37,445 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2020-07-20 11:48:37,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-20 11:48:37,446 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:48:37,446 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:48:37,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:48:37,661 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:48:37,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:48:37,662 INFO L82 PathProgramCache]: Analyzing trace with hash -2027370867, now seen corresponding path program 2 times [2020-07-20 11:48:37,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:48:37,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836232872] [2020-07-20 11:48:37,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:48:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:48:37,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 11:48:37,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:48:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 11:48:37,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:48:37,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836232872] [2020-07-20 11:48:37,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:48:37,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 11:48:37,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065477813] [2020-07-20 11:48:37,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:48:37,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:48:37,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:48:37,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:48:37,786 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 7 states. [2020-07-20 11:48:37,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:48:37,854 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2020-07-20 11:48:37,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:48:37,855 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2020-07-20 11:48:37,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:48:37,856 INFO L225 Difference]: With dead ends: 35 [2020-07-20 11:48:37,856 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:48:37,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-07-20 11:48:37,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:48:37,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:48:37,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:48:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:48:37,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-07-20 11:48:37,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:48:37,858 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:48:37,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:48:37,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:48:37,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:48:38,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:48:38,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:48:38,307 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:48:38,307 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:48:38,307 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:48:38,307 INFO L271 CegarLoopResult]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2020-07-20 11:48:38,308 INFO L268 CegarLoopResult]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2020-07-20 11:48:38,308 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse1 (+ |glob2_#in~pathbuf.offset| 4)) (.cse0 (= ~tmp~0.base glob2_~p~0.base))) (or (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset glob2_~p~0.offset) .cse0) (not (<= .cse1 ~tmp~0.offset)) (not (<= |glob2_#in~pathlim.offset| .cse1)) (let ((.cse2 (+ glob2_~p~0.offset 4))) (and (<= glob2_~pathlim.offset .cse2) .cse0 (<= .cse2 ~tmp~0.offset))))) [2020-07-20 11:48:38,308 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-07-20 11:48:38,308 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2020-07-20 11:48:38,309 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 22) the Hoare annotation is: (let ((.cse1 (+ |glob2_#in~pathbuf.offset| 4)) (.cse0 (= ~tmp~0.base glob2_~p~0.base))) (or (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (<= (+ glob2_~pathlim.offset 4) glob2_~p~0.offset) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset glob2_~p~0.offset) .cse0) (not (<= .cse1 ~tmp~0.offset)) (not (<= |glob2_#in~pathlim.offset| .cse1)) (let ((.cse2 (+ glob2_~p~0.offset 4))) (and (<= glob2_~pathlim.offset .cse2) .cse0 (<= .cse2 ~tmp~0.offset))))) [2020-07-20 11:48:38,309 INFO L268 CegarLoopResult]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2020-07-20 11:48:38,309 INFO L268 CegarLoopResult]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2020-07-20 11:48:38,310 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:48:38,310 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 11:48:38,310 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:48:38,311 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:48:38,311 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 27 38) the Hoare annotation is: true [2020-07-20 11:48:38,311 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2020-07-20 11:48:38,311 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2020-07-20 11:48:38,312 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (+ |main_~#pathbuf~0.offset| 4))) (and (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= main_~bound~0.offset .cse0) (<= .cse0 ~tmp~0.offset))) [2020-07-20 11:48:38,312 INFO L268 CegarLoopResult]: For program point L35-1(line 35) no Hoare annotation was computed. [2020-07-20 11:48:38,312 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-20 11:48:38,312 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-20 11:48:38,312 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-20 11:48:38,313 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-20 11:48:38,313 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-20 11:48:38,313 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-20 11:48:38,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:48:38 BoogieIcfgContainer [2020-07-20 11:48:38,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:48:38,337 INFO L168 Benchmark]: Toolchain (without parser) took 2818.71 ms. Allocated memory was 137.9 MB in the beginning and 234.4 MB in the end (delta: 96.5 MB). Free memory was 101.2 MB in the beginning and 142.6 MB in the end (delta: -41.3 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:48:38,338 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 11:48:38,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.29 ms. Allocated memory is still 137.9 MB. Free memory was 100.8 MB in the beginning and 90.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:48:38,341 INFO L168 Benchmark]: Boogie Preprocessor took 114.38 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 90.8 MB in the beginning and 179.8 MB in the end (delta: -89.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:48:38,341 INFO L168 Benchmark]: RCFGBuilder took 291.35 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 164.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2020-07-20 11:48:38,343 INFO L168 Benchmark]: TraceAbstraction took 2178.18 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 164.6 MB in the beginning and 142.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:48:38,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 228.29 ms. Allocated memory is still 137.9 MB. Free memory was 100.8 MB in the beginning and 90.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.38 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 90.8 MB in the beginning and 179.8 MB in the end (delta: -89.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 291.35 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 164.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2178.18 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 164.6 MB in the beginning and 142.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((!(tmp == pathbuf) || pathlim + 4 <= p) || ((p <= tmp && pathlim <= p) && tmp == p)) || !(pathbuf + 4 <= tmp)) || !(pathlim <= pathbuf + 4)) || ((pathlim <= p + 4 && tmp == p) && p + 4 <= tmp) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 39 SDslu, 166 SDs, 0 SdLazy, 149 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 60 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 17 NumberOfFragments, 107 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 5728 SizeOfPredicates, 19 NumberOfNonLiveVariables, 345 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 20/24 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 correct! Received shutdown request...