/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-dcfa08f [2020-12-23 06:17:36,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:17:36,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:17:36,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:17:36,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:17:36,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:17:36,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:17:36,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:17:36,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:17:36,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:17:36,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:17:36,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:17:36,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:17:36,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:17:36,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:17:36,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:17:36,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:17:36,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:17:36,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:17:36,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:17:36,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:17:36,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:17:36,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:17:36,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:17:36,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 06:17:36,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 06:17:36,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 06:17:36,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 06:17:36,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 06:17:36,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 06:17:36,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:17:36,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:17:36,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:17:36,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:17:36,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:17:36,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:17:36,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:17:36,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:17:36,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:17:36,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:17:36,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:17:36,680 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:17:36,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:17:36,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:17:36,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:17:36,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:17:36,721 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:17:36,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:17:36,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:17:36,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:17:36,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:17:36,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:17:36,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:17:36,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:17:36,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:17:36,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:17:36,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:17:36,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:17:36,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:17:36,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:17:36,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:17:36,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:17:36,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:17:36,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:17:36,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:17:36,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:17:36,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:17:36,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:17:37,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:17:37,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:17:37,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:17:37,372 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:17:37,373 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:17:37,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/nested_structure_ptr-2.i [2020-12-23 06:17:37,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1a0e70bd6/3a5a38b559ba4afab8819756e15ddb51/FLAGb9149b07f [2020-12-23 06:17:38,605 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:17:38,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/nested_structure_ptr-2.i [2020-12-23 06:17:38,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1a0e70bd6/3a5a38b559ba4afab8819756e15ddb51/FLAGb9149b07f [2020-12-23 06:17:38,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1a0e70bd6/3a5a38b559ba4afab8819756e15ddb51 [2020-12-23 06:17:38,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:17:38,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:17:38,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:17:38,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:17:38,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:17:38,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:17:38" (1/1) ... [2020-12-23 06:17:38,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67948197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:38, skipping insertion in model container [2020-12-23 06:17:38,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:17:38" (1/1) ... [2020-12-23 06:17:38,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:17:38,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 06:17:39,150 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]]] [2020-12-23 06:17:39,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:17:39,221 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 06:17:39,251 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]]] [2020-12-23 06:17:39,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:17:39,314 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:17:39,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39 WrapperNode [2020-12-23 06:17:39,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:17:39,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:17:39,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:17:39,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:17:39,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (1/1) ... [2020-12-23 06:17:39,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (1/1) ... [2020-12-23 06:17:39,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:17:39,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:17:39,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:17:39,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:17:39,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (1/1) ... [2020-12-23 06:17:39,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (1/1) ... [2020-12-23 06:17:39,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (1/1) ... [2020-12-23 06:17:39,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (1/1) ... [2020-12-23 06:17:39,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (1/1) ... [2020-12-23 06:17:39,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (1/1) ... [2020-12-23 06:17:39,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (1/1) ... [2020-12-23 06:17:39,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:17:39,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:17:39,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:17:39,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:17:39,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (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 [2020-12-23 06:17:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 06:17:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-23 06:17:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:17:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:17:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:17:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:17:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:17:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:17:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:17:39,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:17:39,997 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-23 06:17:40,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:39 BoogieIcfgContainer [2020-12-23 06:17:40,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:17:40,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:17:40,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:17:40,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:17:40,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:17:38" (1/3) ... [2020-12-23 06:17:40,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cc9661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:17:40, skipping insertion in model container [2020-12-23 06:17:40,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:39" (2/3) ... [2020-12-23 06:17:40,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cc9661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:17:40, skipping insertion in model container [2020-12-23 06:17:40,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:39" (3/3) ... [2020-12-23 06:17:40,038 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-2.i [2020-12-23 06:17:40,053 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:17:40,066 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:17:40,092 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:17:40,120 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:17:40,120 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:17:40,120 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:17:40,120 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:17:40,121 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:17:40,121 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:17:40,121 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:17:40,121 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:17:40,136 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-23 06:17:40,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 06:17:40,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:17:40,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 06:17:40,144 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:17:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:17:40,152 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-12-23 06:17:40,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:17:40,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591454159] [2020-12-23 06:17:40,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:17:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:17:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:17:40,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591454159] [2020-12-23 06:17:40,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:17:40,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 06:17:40,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405412437] [2020-12-23 06:17:40,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 06:17:40,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:17:40,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 06:17:40,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:17:40,518 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-23 06:17:40,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:17:40,542 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-12-23 06:17:40,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 06:17:40,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-23 06:17:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:17:40,553 INFO L225 Difference]: With dead ends: 13 [2020-12-23 06:17:40,553 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 06:17:40,557 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 [2020-12-23 06:17:40,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 06:17:40,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 06:17:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 06:17:40,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 06:17:40,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-23 06:17:40,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:17:40,590 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 06:17:40,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 06:17:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 06:17:40,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 06:17:40,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:17:40,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 06:17:40,612 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 06:17:40,612 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 06:17:40,612 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 06:17:40,613 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 06:17:40,613 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2020-12-23 06:17:40,613 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2020-12-23 06:17:40,613 INFO L189 CegarLoopUtils]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-12-23 06:17:40,614 INFO L185 CegarLoopUtils]: At program point L46(lines 38 47) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2020-12-23 06:17:40,614 INFO L185 CegarLoopUtils]: At program point L14-2(lines 13 18) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2020-12-23 06:17:40,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:17:40 BoogieIcfgContainer [2020-12-23 06:17:40,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:17:40,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:17:40,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:17:40,638 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:17:40,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:39" (3/4) ... [2020-12-23 06:17:40,643 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 06:17:40,659 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-23 06:17:40,660 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 06:17:40,660 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 06:17:40,660 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 06:17:40,732 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/nested_structure_ptr-2.i-witness.graphml [2020-12-23 06:17:40,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:17:40,735 INFO L168 Benchmark]: Toolchain (without parser) took 1885.53 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 107.1 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:40,736 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:17:40,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.87 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:40,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.36 ms. Allocated memory is still 151.0 MB. Free memory was 116.8 MB in the beginning and 115.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:40,746 INFO L168 Benchmark]: Boogie Preprocessor took 58.65 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 114.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:40,746 INFO L168 Benchmark]: RCFGBuilder took 531.66 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 134.4 MB in the end (delta: -20.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:40,747 INFO L168 Benchmark]: TraceAbstraction took 632.14 ms. Allocated memory is still 151.0 MB. Free memory was 133.8 MB in the beginning and 109.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:40,748 INFO L168 Benchmark]: Witness Printer took 94.33 ms. Allocated memory is still 151.0 MB. Free memory was 109.2 MB in the beginning and 107.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:40,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 151.0 MB. Free memory is still 122.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 459.87 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 86.36 ms. Allocated memory is still 151.0 MB. Free memory was 116.8 MB in the beginning and 115.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.65 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 114.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 531.66 ms. Allocated memory is still 151.0 MB. Free memory was 114.2 MB in the beginning and 134.4 MB in the end (delta: -20.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 632.14 ms. Allocated memory is still 151.0 MB. Free memory was 133.8 MB in the beginning and 109.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Witness Printer took 94.33 ms. Allocated memory is still 151.0 MB. Free memory was 109.2 MB in the beginning and 107.1 MB in the end (delta: 2.1 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: 0.4s, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s 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...