/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/ldv-regression/nested_structure_noptr-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:51:27,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:51:27,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:51:27,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:51:27,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:51:27,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:51:27,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:51:27,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:51:27,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:51:27,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:51:27,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:51:27,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:51:27,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:51:27,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:51:27,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:51:27,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:51:27,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:51:27,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:51:28,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:51:28,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:51:28,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:51:28,009 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:51:28,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:51:28,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:51:28,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:51:28,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:51:28,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:51:28,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:51:28,012 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:51:28,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:51:28,012 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:51:28,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:51:28,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:51:28,013 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:51:28,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:51:28,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:51:28,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:51:28,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:51:28,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:51:28,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:51:28,015 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:51:28,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:51:28,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:51:28,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:51:28,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:51:28,453 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:51:28,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_noptr-2.i [2020-11-07 00:51:28,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd111335c/bef841097b4842a8acd8e17f88912b97/FLAGd31ecb51d [2020-11-07 00:51:29,304 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:51:29,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_noptr-2.i [2020-11-07 00:51:29,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd111335c/bef841097b4842a8acd8e17f88912b97/FLAGd31ecb51d [2020-11-07 00:51:29,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd111335c/bef841097b4842a8acd8e17f88912b97 [2020-11-07 00:51:29,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:51:29,675 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:51:29,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:51:29,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:51:29,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:51:29,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:51:29" (1/1) ... [2020-11-07 00:51:29,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b1cb49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29, skipping insertion in model container [2020-11-07 00:51:29,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:51:29" (1/1) ... [2020-11-07 00:51:29,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:51:29,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:51:29,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:51:29,897 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:51:29,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:51:29,936 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:51:29,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29 WrapperNode [2020-11-07 00:51:29,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:51:29,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:51:29,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:51:29,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:51:29,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29" (1/1) ... [2020-11-07 00:51:29,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29" (1/1) ... [2020-11-07 00:51:29,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29" (1/1) ... [2020-11-07 00:51:29,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29" (1/1) ... [2020-11-07 00:51:29,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29" (1/1) ... [2020-11-07 00:51:29,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29" (1/1) ... [2020-11-07 00:51:29,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29" (1/1) ... [2020-11-07 00:51:29,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:51:29,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:51:29,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:51:29,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:51:29,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29" (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 [2020-11-07 00:51:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:51:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:51:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:51:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-11-07 00:51:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:51:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:51:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:51:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:51:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:51:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-11-07 00:51:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:51:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:51:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:51:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:51:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:51:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:51:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:51:30,286 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:51:30,286 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 00:51:30,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:51:30 BoogieIcfgContainer [2020-11-07 00:51:30,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:51:30,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:51:30,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:51:30,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:51:30,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:51:29" (1/3) ... [2020-11-07 00:51:30,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22aeb8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:51:30, skipping insertion in model container [2020-11-07 00:51:30,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:51:29" (2/3) ... [2020-11-07 00:51:30,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22aeb8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:51:30, skipping insertion in model container [2020-11-07 00:51:30,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:51:30" (3/3) ... [2020-11-07 00:51:30,299 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_structure_noptr-2.i [2020-11-07 00:51:30,316 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:51:30,320 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:51:30,333 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:51:30,357 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:51:30,357 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:51:30,358 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:51:30,358 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:51:30,358 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:51:30,358 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:51:30,359 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:51:30,359 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:51:30,376 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-11-07 00:51:30,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-07 00:51:30,387 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:51:30,388 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] [2020-11-07 00:51:30,389 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:51:30,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:51:30,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1538483888, now seen corresponding path program 1 times [2020-11-07 00:51:30,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:51:30,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87997631] [2020-11-07 00:51:30,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:51:30,516 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:51:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:51:30,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:51:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:51:30,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:51:30,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87997631] [2020-11-07 00:51:30,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:51:30,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 00:51:30,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624628456] [2020-11-07 00:51:30,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 00:51:30,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:51:31,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 00:51:31,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:51:31,015 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 5 states. [2020-11-07 00:51:31,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:51:31,126 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-11-07 00:51:31,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:51:31,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-07 00:51:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:51:31,137 INFO L225 Difference]: With dead ends: 44 [2020-11-07 00:51:31,137 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 00:51:31,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:51:31,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 00:51:31,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 00:51:31,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 00:51:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 00:51:31,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-07 00:51:31,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:51:31,172 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 00:51:31,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 00:51:31,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 00:51:31,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 00:51:31,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:51:31,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 00:51:31,326 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,327 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,327 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,327 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,328 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,328 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,328 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:51:31,328 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,328 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 00:51:31,328 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,329 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 00:51:31,329 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,329 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-11-07 00:51:31,329 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:51:31,329 INFO L269 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-11-07 00:51:31,329 INFO L269 CegarLoopResult]: At program point __blast_assertEXIT(lines 10 13) the Hoare annotation is: true [2020-11-07 00:51:31,330 INFO L269 CegarLoopResult]: At program point __blast_assertFINAL(lines 10 13) the Hoare annotation is: true [2020-11-07 00:51:31,330 INFO L269 CegarLoopResult]: At program point __blast_assertENTRY(lines 10 13) the Hoare annotation is: true [2020-11-07 00:51:31,330 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 00:51:31,330 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 00:51:31,330 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 00:51:31,330 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 00:51:31,331 INFO L262 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8)) 4) [2020-11-07 00:51:31,331 INFO L262 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8)) 4) (= |main_#t~mem7| 4)) [2020-11-07 00:51:31,331 INFO L262 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8)) 4) [2020-11-07 00:51:31,331 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 27 33) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-11-07 00:51:31,331 INFO L269 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-11-07 00:51:31,332 INFO L262 CegarLoopResult]: At program point L31-2(line 31) the Hoare annotation is: false [2020-11-07 00:51:31,332 INFO L269 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: true [2020-11-07 00:51:31,332 INFO L262 CegarLoopResult]: At program point L31-3(line 31) the Hoare annotation is: (and (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8)) 4) (= |main_#t~mem7| 4)) [2020-11-07 00:51:31,332 INFO L269 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: true [2020-11-07 00:51:31,333 INFO L269 CegarLoopResult]: At program point L29-3(line 29) the Hoare annotation is: true [2020-11-07 00:51:31,333 INFO L262 CegarLoopResult]: At program point L29-4(line 29) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8)) 4) [2020-11-07 00:51:31,333 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 27 33) the Hoare annotation is: true [2020-11-07 00:51:31,333 INFO L262 CegarLoopResult]: At program point L29-5(line 29) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8)) 4) [2020-11-07 00:51:31,334 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 27 33) the Hoare annotation is: true [2020-11-07 00:51:31,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:51:31 BoogieIcfgContainer [2020-11-07 00:51:31,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:51:31,348 INFO L168 Benchmark]: Toolchain (without parser) took 1677.95 ms. Allocated memory is still 164.6 MB. Free memory was 141.0 MB in the beginning and 105.9 MB in the end (delta: 35.0 MB). Peak memory consumption was 36.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:51:31,349 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 125.8 MB. Free memory is still 82.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:51:31,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.13 ms. Allocated memory is still 164.6 MB. Free memory was 140.3 MB in the beginning and 131.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:51:31,351 INFO L168 Benchmark]: Boogie Preprocessor took 36.40 ms. Allocated memory is still 164.6 MB. Free memory was 131.1 MB in the beginning and 129.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:51:31,352 INFO L168 Benchmark]: RCFGBuilder took 313.10 ms. Allocated memory is still 164.6 MB. Free memory was 129.7 MB in the beginning and 116.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:51:31,353 INFO L168 Benchmark]: TraceAbstraction took 1054.97 ms. Allocated memory is still 164.6 MB. Free memory was 116.2 MB in the beginning and 105.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:51:31,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 125.8 MB. Free memory is still 82.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 260.13 ms. Allocated memory is still 164.6 MB. Free memory was 140.3 MB in the beginning and 131.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.40 ms. Allocated memory is still 164.6 MB. Free memory was 131.1 MB in the beginning and 129.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 313.10 ms. Allocated memory is still 164.6 MB. Free memory was 129.7 MB in the beginning and 116.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1054.97 ms. Allocated memory is still 164.6 MB. Free memory was 116.2 MB in the beginning and 105.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 10]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 6 SDslu, 39 SDs, 0 SdLazy, 33 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 36 PreInvPairs, 44 NumberOfFragments, 128 HoareAnnotationTreeSize, 36 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 36 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, 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 correct! Received shutdown request...