/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure_ptr-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 03:56:03,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 03:56:03,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 03:56:03,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 03:56:03,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 03:56:03,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 03:56:03,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 03:56:03,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 03:56:03,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 03:56:03,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 03:56:03,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 03:56:03,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 03:56:03,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 03:56:03,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 03:56:03,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 03:56:03,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 03:56:03,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 03:56:03,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 03:56:03,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 03:56:03,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 03:56:03,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 03:56:03,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 03:56:03,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 03:56:03,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 03:56:03,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 03:56:03,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 03:56:03,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 03:56:03,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 03:56:03,605 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 03:56:03,630 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 03:56:03,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 03:56:03,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 03:56:03,631 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 03:56:03,632 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 03:56:03,632 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 03:56:03,632 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 03:56:03,632 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 03:56:03,632 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 03:56:03,633 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 03:56:03,633 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 03:56:03,633 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 03:56:03,633 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 03:56:03,634 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 03:56:03,634 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 03:56:03,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 03:56:03,635 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 03:56:03,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 03:56:03,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 03:56:03,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 03:56:03,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 03:56:03,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 03:56:03,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 03:56:03,636 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 03:56:03,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 03:56:03,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 03:56:03,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 03:56:03,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 03:56:03,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 03:56:03,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 03:56:03,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 03:56:03,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 03:56:03,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 03:56:03,639 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 03:56:03,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 03:56:03,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 03:56:03,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 03:56:03,639 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 03:56:03,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 03:56:03,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 03:56:03,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 03:56:03,982 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 03:56:03,983 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 03:56:03,984 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_ptr-1.i [2019-11-24 03:56:04,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db2e1ee2a/cab7a1661af74efdba8706dddc6aeaa6/FLAGecbaa87d0 [2019-11-24 03:56:04,562 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 03:56:04,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_ptr-1.i [2019-11-24 03:56:04,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db2e1ee2a/cab7a1661af74efdba8706dddc6aeaa6/FLAGecbaa87d0 [2019-11-24 03:56:04,907 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db2e1ee2a/cab7a1661af74efdba8706dddc6aeaa6 [2019-11-24 03:56:04,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 03:56:04,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 03:56:04,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 03:56:04,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 03:56:04,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 03:56:04,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:56:04" (1/1) ... [2019-11-24 03:56:04,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0c6ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:04, skipping insertion in model container [2019-11-24 03:56:04,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 03:56:04" (1/1) ... [2019-11-24 03:56:04,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 03:56:04,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 03:56:05,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:56:05,231 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 03:56:05,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 03:56:05,278 INFO L208 MainTranslator]: Completed translation [2019-11-24 03:56:05,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05 WrapperNode [2019-11-24 03:56:05,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 03:56:05,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 03:56:05,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 03:56:05,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 03:56:05,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (1/1) ... [2019-11-24 03:56:05,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (1/1) ... [2019-11-24 03:56:05,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 03:56:05,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 03:56:05,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 03:56:05,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 03:56:05,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (1/1) ... [2019-11-24 03:56:05,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (1/1) ... [2019-11-24 03:56:05,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (1/1) ... [2019-11-24 03:56:05,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (1/1) ... [2019-11-24 03:56:05,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (1/1) ... [2019-11-24 03:56:05,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (1/1) ... [2019-11-24 03:56:05,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (1/1) ... [2019-11-24 03:56:05,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 03:56:05,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 03:56:05,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 03:56:05,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 03:56:05,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (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 [2019-11-24 03:56:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 03:56:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 03:56:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 03:56:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 03:56:05,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 03:56:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 03:56:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 03:56:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 03:56:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 03:56:05,826 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 03:56:05,827 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-24 03:56:05,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:56:05 BoogieIcfgContainer [2019-11-24 03:56:05,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 03:56:05,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 03:56:05,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 03:56:05,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 03:56:05,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 03:56:04" (1/3) ... [2019-11-24 03:56:05,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fca7fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:56:05, skipping insertion in model container [2019-11-24 03:56:05,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 03:56:05" (2/3) ... [2019-11-24 03:56:05,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fca7fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 03:56:05, skipping insertion in model container [2019-11-24 03:56:05,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 03:56:05" (3/3) ... [2019-11-24 03:56:05,844 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-1.i [2019-11-24 03:56:05,859 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 03:56:05,871 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 03:56:05,899 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 03:56:05,938 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 03:56:05,938 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 03:56:05,939 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 03:56:05,939 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 03:56:05,939 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 03:56:05,939 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 03:56:05,940 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 03:56:05,940 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 03:56:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-24 03:56:05,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-24 03:56:05,963 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 03:56:05,963 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-24 03:56:05,964 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 03:56:05,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 03:56:05,970 INFO L82 PathProgramCache]: Analyzing trace with hash 46354, now seen corresponding path program 1 times [2019-11-24 03:56:05,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 03:56:05,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929859419] [2019-11-24 03:56:05,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 03:56:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 03:56:06,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 03:56:06,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929859419] [2019-11-24 03:56:06,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 03:56:06,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 03:56:06,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583335119] [2019-11-24 03:56:06,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 03:56:06,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 03:56:06,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 03:56:06,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:56:06,328 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-11-24 03:56:06,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 03:56:06,354 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-11-24 03:56:06,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 03:56:06,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-24 03:56:06,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 03:56:06,364 INFO L225 Difference]: With dead ends: 8 [2019-11-24 03:56:06,364 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 03:56:06,369 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 03:56:06,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 03:56:06,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 03:56:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 03:56:06,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 03:56:06,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-24 03:56:06,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 03:56:06,402 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 03:56:06,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 03:56:06,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 03:56:06,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 03:56:06,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 03:56:06,436 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 03:56:06,436 INFO L444 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2019-11-24 03:56:06,436 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 03:56:06,436 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-24 03:56:06,437 INFO L444 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-11-24 03:56:06,437 INFO L440 ceAbstractionStarter]: At program point L8(lines 1 34) the Hoare annotation is: (= 4 |ULTIMATE.start_main_#t~mem4|) [2019-11-24 03:56:06,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 03:56:06 BoogieIcfgContainer [2019-11-24 03:56:06,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 03:56:06,462 INFO L168 Benchmark]: Toolchain (without parser) took 1541.35 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 137.3 MB in the end (delta: -34.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:06,464 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 03:56:06,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.91 ms. Allocated memory is still 138.4 MB. Free memory was 102.0 MB in the beginning and 92.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:06,471 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.81 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 92.0 MB in the beginning and 180.9 MB in the end (delta: -89.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:06,472 INFO L168 Benchmark]: Boogie Preprocessor took 38.55 ms. Allocated memory is still 202.4 MB. Free memory was 180.9 MB in the beginning and 179.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:06,474 INFO L168 Benchmark]: RCFGBuilder took 391.94 ms. Allocated memory is still 202.4 MB. Free memory was 179.2 MB in the beginning and 162.6 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:06,475 INFO L168 Benchmark]: TraceAbstraction took 626.53 ms. Allocated memory is still 202.4 MB. Free memory was 161.9 MB in the beginning and 137.3 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-11-24 03:56:06,494 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 358.91 ms. Allocated memory is still 138.4 MB. Free memory was 102.0 MB in the beginning and 92.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 118.81 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 92.0 MB in the beginning and 180.9 MB in the end (delta: -89.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.55 ms. Allocated memory is still 202.4 MB. Free memory was 180.9 MB in the beginning and 179.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 391.94 ms. Allocated memory is still 202.4 MB. Free memory was 179.2 MB in the beginning and 162.6 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 626.53 ms. Allocated memory is still 202.4 MB. Free memory was 161.9 MB in the beginning and 137.3 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 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 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 4 == aux-ptr->x->y->c-aux - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...