/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-regression/nested_structure_ptr-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:11:56,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:11:56,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:11:56,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:11:56,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:11:56,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:11:56,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:11:56,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:11:56,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:11:56,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:11:56,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:11:56,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:11:56,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:11:56,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:11:56,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:11:56,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:11:56,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:11:56,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:11:56,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:11:56,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:11:56,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:11:56,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:11:56,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:11:56,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:11:56,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 16:11:56,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:11:56,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:11:56,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:11:56,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:11:56,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:11:56,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:11:56,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:11:56,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:11:56,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:11:56,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:11:56,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:11:56,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:11:56,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:11:56,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:11:56,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:11:56,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:11:56,229 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:11:56,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:11:56,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:11:56,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:11:56,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:11:56,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:11:56,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:11:56,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:11:56,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:11:56,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:11:56,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:11:56,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:11:56,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:11:56,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:11:56,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:11:56,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:11:56,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:11:56,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:11:56,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:11:56,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:11:56,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:11:56,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:11:56,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:11:56,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:11:56,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:11:56,853 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:11:56,854 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:11:56,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/nested_structure_ptr-2.i [2021-01-06 16:11:56,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/124b59737/f714aadcb029428d9df294d7ead03932/FLAG98d68cba2 [2021-01-06 16:11:57,751 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:11:57,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/nested_structure_ptr-2.i [2021-01-06 16:11:57,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/124b59737/f714aadcb029428d9df294d7ead03932/FLAG98d68cba2 [2021-01-06 16:11:58,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/124b59737/f714aadcb029428d9df294d7ead03932 [2021-01-06 16:11:58,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:11:58,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:11:58,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:11:58,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:11:58,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:11:58,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@938553c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58, skipping insertion in model container [2021-01-06 16:11:58,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:11:58,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 16:11:58,341 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/nested_structure_ptr-2.i[822,835] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem4,],base],StructAccessExpression[IdentifierExpression[#t~mem4,],offset]]] [2021-01-06 16:11:58,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:11:58,393 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 16:11:58,416 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/nested_structure_ptr-2.i[822,835] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem4,],base],StructAccessExpression[IdentifierExpression[#t~mem4,],offset]]] [2021-01-06 16:11:58,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:11:58,455 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:11:58,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58 WrapperNode [2021-01-06 16:11:58,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:11:58,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:11:58,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:11:58,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:11:58,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:11:58,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:11:58,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:11:58,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:11:58,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... [2021-01-06 16:11:58,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:11:58,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:11:58,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:11:58,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:11:58,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:11:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-06 16:11:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-01-06 16:11:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:11:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:11:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 16:11:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:11:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:11:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 16:11:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 16:11:59,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:11:59,367 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-01-06 16:11:59,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:11:59 BoogieIcfgContainer [2021-01-06 16:11:59,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:11:59,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:11:59,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:11:59,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:11:59,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:11:58" (1/3) ... [2021-01-06 16:11:59,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372aa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:11:59, skipping insertion in model container [2021-01-06 16:11:59,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:11:58" (2/3) ... [2021-01-06 16:11:59,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372aa20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:11:59, skipping insertion in model container [2021-01-06 16:11:59,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:11:59" (3/3) ... [2021-01-06 16:11:59,385 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-2.i [2021-01-06 16:11:59,395 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:11:59,403 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:11:59,434 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:11:59,479 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:11:59,479 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:11:59,479 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:11:59,480 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:11:59,480 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:11:59,480 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:11:59,480 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:11:59,480 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:11:59,503 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-01-06 16:11:59,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-06 16:11:59,511 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:11:59,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-06 16:11:59,514 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:11:59,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:11:59,525 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-01-06 16:11:59,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:11:59,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697895293] [2021-01-06 16:11:59,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:11:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:12:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:12:00,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697895293] [2021-01-06 16:12:00,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:12:00,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 16:12:00,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93733898] [2021-01-06 16:12:00,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 16:12:00,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:12:00,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 16:12:00,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:12:00,182 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2021-01-06 16:12:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:12:00,202 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-01-06 16:12:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 16:12:00,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-01-06 16:12:00,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:12:00,211 INFO L225 Difference]: With dead ends: 13 [2021-01-06 16:12:00,211 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 16:12:00,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:12:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 16:12:00,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 16:12:00,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 16:12:00,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 16:12:00,243 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-01-06 16:12:00,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:12:00,243 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 16:12:00,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 16:12:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 16:12:00,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 16:12:00,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:12:00,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-01-06 16:12:00,263 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-01-06 16:12:00,263 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2021-01-06 16:12:00,263 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-01-06 16:12:00,263 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-01-06 16:12:00,263 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-01-06 16:12:00,264 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-01-06 16:12:00,264 INFO L189 CegarLoopUtils]: For program point L14(lines 14 16) no Hoare annotation was computed. [2021-01-06 16:12:00,264 INFO L185 CegarLoopUtils]: At program point L46(lines 38 47) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-01-06 16:12:00,264 INFO L185 CegarLoopUtils]: At program point L14-2(lines 13 18) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-01-06 16:12:00,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:12:00 BoogieIcfgContainer [2021-01-06 16:12:00,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:12:00,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:12:00,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:12:00,302 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:12:00,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:11:59" (3/4) ... [2021-01-06 16:12:00,306 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 16:12:00,319 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-01-06 16:12:00,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 16:12:00,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:12:00,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:12:00,383 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/nested_structure_ptr-2.i-witness.graphml [2021-01-06 16:12:00,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:12:00,386 INFO L168 Benchmark]: Toolchain (without parser) took 2306.69 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 105.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:00,387 INFO L168 Benchmark]: CDTParser took 4.85 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:12:00,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.31 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 117.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:00,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.59 ms. Allocated memory is still 151.0 MB. Free memory was 117.2 MB in the beginning and 115.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:00,393 INFO L168 Benchmark]: Boogie Preprocessor took 37.08 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 114.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:00,395 INFO L168 Benchmark]: RCFGBuilder took 807.30 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 133.0 MB in the end (delta: -18.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:00,399 INFO L168 Benchmark]: TraceAbstraction took 927.54 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 108.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:00,403 INFO L168 Benchmark]: Witness Printer took 81.89 ms. Allocated memory is still 151.0 MB. Free memory was 108.3 MB in the beginning and 105.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:00,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.85 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 375.31 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 117.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 65.59 ms. Allocated memory is still 151.0 MB. Free memory was 117.2 MB in the beginning and 115.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.08 ms. Allocated memory is still 151.0 MB. Free memory was 115.7 MB in the beginning and 114.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 807.30 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 133.0 MB in the end (delta: -18.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 927.54 ms. Allocated memory is still 151.0 MB. Free memory was 132.5 MB in the beginning and 108.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Witness Printer took 81.89 ms. Allocated memory is still 151.0 MB. Free memory was 108.3 MB in the beginning and 105.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...