/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure_noptr-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:27:22,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:27:22,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:27:22,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:27:22,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:27:22,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:27:22,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:27:22,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:27:22,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:27:22,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:27:22,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:27:22,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:27:22,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:27:22,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:27:22,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:27:22,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:27:22,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:27:22,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:27:22,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:27:22,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:27:22,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:27:22,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:27:22,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:27:22,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:27:22,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:27:22,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:27:22,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:27:22,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:27:22,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:27:22,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:27:22,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:27:22,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:27:22,364 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:27:22,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:27:22,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:27:22,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:27:22,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:27:22,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:27:22,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:27:22,367 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:27:22,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:27:22,367 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:27:22,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:27:22,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:27:22,370 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:27:22,370 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:27:22,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:27:22,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:27:22,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:27:22,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:27:22,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:27:22,374 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:27:22,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:27:22,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:27:22,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:27:22,696 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:27:22,697 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:27:22,697 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_noptr-2.i [2020-07-17 13:27:22,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49bfe3a74/02b3f5348a76426b9fcdd666797237f8/FLAG67dcc1f20 [2020-07-17 13:27:23,250 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:27:23,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_noptr-2.i [2020-07-17 13:27:23,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49bfe3a74/02b3f5348a76426b9fcdd666797237f8/FLAG67dcc1f20 [2020-07-17 13:27:23,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49bfe3a74/02b3f5348a76426b9fcdd666797237f8 [2020-07-17 13:27:23,634 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:27:23,637 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:27:23,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:27:23,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:27:23,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:27:23,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:27:23" (1/1) ... [2020-07-17 13:27:23,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b722876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23, skipping insertion in model container [2020-07-17 13:27:23,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:27:23" (1/1) ... [2020-07-17 13:27:23,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:27:23,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:27:23,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:27:23,825 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:27:23,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:27:23,867 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:27:23,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23 WrapperNode [2020-07-17 13:27:23,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:27:23,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:27:23,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:27:23,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:27:23,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23" (1/1) ... [2020-07-17 13:27:23,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23" (1/1) ... [2020-07-17 13:27:23,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23" (1/1) ... [2020-07-17 13:27:23,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23" (1/1) ... [2020-07-17 13:27:23,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23" (1/1) ... [2020-07-17 13:27:23,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23" (1/1) ... [2020-07-17 13:27:23,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23" (1/1) ... [2020-07-17 13:27:23,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:27:23,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:27:23,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:27:23,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:27:23,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23" (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 [2020-07-17 13:27:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:27:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:27:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-17 13:27:24,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:27:24,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:27:24,052 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-17 13:27:24,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:27:24,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 13:27:24,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 13:27:24,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 13:27:24,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 13:27:24,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:27:24,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:27:24,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:27:24,252 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:27:24,252 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 13:27:24,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:27:24 BoogieIcfgContainer [2020-07-17 13:27:24,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:27:24,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:27:24,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:27:24,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:27:24,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:27:23" (1/3) ... [2020-07-17 13:27:24,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596f26cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:27:24, skipping insertion in model container [2020-07-17 13:27:24,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:27:23" (2/3) ... [2020-07-17 13:27:24,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596f26cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:27:24, skipping insertion in model container [2020-07-17 13:27:24,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:27:24" (3/3) ... [2020-07-17 13:27:24,280 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_noptr-2.i [2020-07-17 13:27:24,291 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:27:24,298 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:27:24,322 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:27:24,342 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:27:24,343 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:27:24,343 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:27:24,343 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:27:24,343 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:27:24,343 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:27:24,343 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:27:24,344 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:27:24,356 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-17 13:27:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-17 13:27:24,365 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:27:24,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:27:24,367 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:27:24,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:27:24,373 INFO L82 PathProgramCache]: Analyzing trace with hash 607772407, now seen corresponding path program 1 times [2020-07-17 13:27:24,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:27:24,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682906927] [2020-07-17 13:27:24,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:27:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:27:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:27:24,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 13:27:24,609 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:27:24,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682906927] [2020-07-17 13:27:24,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:27:24,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 13:27:24,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710874794] [2020-07-17 13:27:24,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 13:27:24,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:27:24,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 13:27:24,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:27:24,642 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-07-17 13:27:24,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:27:24,730 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-07-17 13:27:24,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 13:27:24,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-17 13:27:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:27:24,739 INFO L225 Difference]: With dead ends: 35 [2020-07-17 13:27:24,740 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 13:27:24,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 13:27:24,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 13:27:24,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 13:27:24,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 13:27:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 13:27:24,765 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-17 13:27:24,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:27:24,766 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 13:27:24,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 13:27:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 13:27:24,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 13:27:24,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:27:24,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 13:27:24,897 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 13:27:24,897 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-17 13:27:24,897 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 13:27:24,898 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-17 13:27:24,898 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 13:27:24,898 INFO L271 CegarLoopResult]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) the Hoare annotation is: true [2020-07-17 13:27:24,899 INFO L271 CegarLoopResult]: At program point __blast_assertEXIT(lines 8 11) the Hoare annotation is: true [2020-07-17 13:27:24,899 INFO L271 CegarLoopResult]: At program point __blast_assertFINAL(lines 8 11) the Hoare annotation is: true [2020-07-17 13:27:24,899 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 8 11) the Hoare annotation is: true [2020-07-17 13:27:24,899 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 13:27:24,899 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 13:27:24,900 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 13:27:24,900 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 13:27:24,900 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) [2020-07-17 13:27:24,901 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 25 31) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-17 13:27:24,901 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) (= 4 |main_#t~mem0|)) [2020-07-17 13:27:24,901 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) [2020-07-17 13:27:24,902 INFO L271 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: true [2020-07-17 13:27:24,902 INFO L264 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: false [2020-07-17 13:27:24,902 INFO L271 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: true [2020-07-17 13:27:24,903 INFO L264 CegarLoopResult]: At program point L29-3(line 29) the Hoare annotation is: (and (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) (= 4 |main_#t~mem0|)) [2020-07-17 13:27:24,903 INFO L271 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: true [2020-07-17 13:27:24,904 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 25 31) the Hoare annotation is: true [2020-07-17 13:27:24,904 INFO L271 CegarLoopResult]: At program point L27-3(line 27) the Hoare annotation is: true [2020-07-17 13:27:24,904 INFO L264 CegarLoopResult]: At program point L27-4(line 27) the Hoare annotation is: (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) [2020-07-17 13:27:24,905 INFO L264 CegarLoopResult]: At program point L27-5(line 27) the Hoare annotation is: (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) [2020-07-17 13:27:24,905 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 25 31) the Hoare annotation is: true [2020-07-17 13:27:24,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:27:24 BoogieIcfgContainer [2020-07-17 13:27:24,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:27:24,919 INFO L168 Benchmark]: Toolchain (without parser) took 1282.55 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 103.1 MB in the beginning and 128.0 MB in the end (delta: -24.9 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2020-07-17 13:27:24,920 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 13:27:24,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.23 ms. Allocated memory is still 145.8 MB. Free memory was 102.7 MB in the beginning and 92.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:27:24,923 INFO L168 Benchmark]: Boogie Preprocessor took 112.70 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 92.8 MB in the beginning and 181.5 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-17 13:27:24,924 INFO L168 Benchmark]: RCFGBuilder took 276.38 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 169.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-07-17 13:27:24,924 INFO L168 Benchmark]: TraceAbstraction took 646.47 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 128.0 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2020-07-17 13:27:24,929 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 230.23 ms. Allocated memory is still 145.8 MB. Free memory was 102.7 MB in the beginning and 92.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.70 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 92.8 MB in the beginning and 181.5 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 276.38 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 169.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 646.47 ms. Allocated memory is still 202.9 MB. Free memory was 168.4 MB in the beginning and 128.0 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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: 8]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 25]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 6 SDslu, 31 SDs, 0 SdLazy, 26 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 27 LocationsWithAnnotation, 27 PreInvPairs, 35 NumberOfFragments, 94 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 7 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...