/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure_ptr-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 21:56:32,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 21:56:32,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 21:56:32,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 21:56:32,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 21:56:32,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 21:56:32,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 21:56:32,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 21:56:32,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 21:56:32,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 21:56:32,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 21:56:32,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 21:56:32,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 21:56:32,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 21:56:32,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 21:56:32,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 21:56:32,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 21:56:32,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 21:56:32,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 21:56:32,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 21:56:32,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 21:56:32,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 21:56:32,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 21:56:32,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 21:56:32,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 21:56:32,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 21:56:32,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 21:56:32,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 21:56:32,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 21:56:32,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 21:56:32,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 21:56:32,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 21:56:32,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 21:56:32,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 21:56:32,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 21:56:32,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 21:56:32,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 21:56:32,885 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 21:56:32,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 21:56:32,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 21:56:32,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 21:56:32,887 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 21:56:32,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 21:56:32,887 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 21:56:32,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 21:56:32,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 21:56:32,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 21:56:32,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 21:56:32,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 21:56:32,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 21:56:32,889 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 21:56:32,889 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 21:56:32,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 21:56:32,889 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 21:56:32,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 21:56:32,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 21:56:32,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 21:56:32,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 21:56:32,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 21:56:32,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 21:56:32,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 21:56:32,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 21:56:32,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 21:56:32,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 21:56:32,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 21:56:32,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 21:56:32,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 21:56:33,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 21:56:33,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 21:56:33,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 21:56:33,231 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 21:56:33,231 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 21:56:33,232 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_ptr-2.i [2019-11-23 21:56:33,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32ee98d4/c6c88828e4a142479d06549f5f492376/FLAG274e722b7 [2019-11-23 21:56:33,794 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 21:56:33,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_ptr-2.i [2019-11-23 21:56:33,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32ee98d4/c6c88828e4a142479d06549f5f492376/FLAG274e722b7 [2019-11-23 21:56:34,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32ee98d4/c6c88828e4a142479d06549f5f492376 [2019-11-23 21:56:34,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 21:56:34,161 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 21:56:34,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 21:56:34,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 21:56:34,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 21:56:34,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ecb9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34, skipping insertion in model container [2019-11-23 21:56:34,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 21:56:34,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 21:56:34,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:56:34,394 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 21:56:34,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 21:56:34,429 INFO L208 MainTranslator]: Completed translation [2019-11-23 21:56:34,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34 WrapperNode [2019-11-23 21:56:34,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 21:56:34,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 21:56:34,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 21:56:34,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 21:56:34,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 21:56:34,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 21:56:34,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 21:56:34,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 21:56:34,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (1/1) ... [2019-11-23 21:56:34,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 21:56:34,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 21:56:34,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 21:56:34,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 21:56:34,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (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 [2019-11-23 21:56:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-23 21:56:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-23 21:56:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-23 21:56:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 21:56:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 21:56:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 21:56:34,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 21:56:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 21:56:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 21:56:34,830 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 21:56:34,830 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-23 21:56:34,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:56:34 BoogieIcfgContainer [2019-11-23 21:56:34,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 21:56:34,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 21:56:34,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 21:56:34,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 21:56:34,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:56:34" (1/3) ... [2019-11-23 21:56:34,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9e2b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:56:34, skipping insertion in model container [2019-11-23 21:56:34,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:56:34" (2/3) ... [2019-11-23 21:56:34,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9e2b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:56:34, skipping insertion in model container [2019-11-23 21:56:34,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:56:34" (3/3) ... [2019-11-23 21:56:34,839 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-2.i [2019-11-23 21:56:34,849 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 21:56:34,856 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 21:56:34,868 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 21:56:34,896 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 21:56:34,896 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 21:56:34,896 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 21:56:34,897 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 21:56:34,897 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 21:56:34,897 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 21:56:34,897 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 21:56:34,897 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 21:56:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-23 21:56:34,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-23 21:56:34,933 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 21:56:34,934 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-23 21:56:34,936 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 21:56:34,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 21:56:34,945 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-23 21:56:34,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 21:56:34,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476655855] [2019-11-23 21:56:34,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 21:56:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 21:56:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 21:56:35,246 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476655855] [2019-11-23 21:56:35,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 21:56:35,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 21:56:35,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577589037] [2019-11-23 21:56:35,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 21:56:35,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 21:56:35,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 21:56:35,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 21:56:35,265 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-11-23 21:56:35,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 21:56:35,281 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-23 21:56:35,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 21:56:35,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-23 21:56:35,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 21:56:35,291 INFO L225 Difference]: With dead ends: 13 [2019-11-23 21:56:35,291 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 21:56:35,295 INFO L630 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 [2019-11-23 21:56:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 21:56:35,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 21:56:35,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 21:56:35,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 21:56:35,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-23 21:56:35,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 21:56:35,324 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 21:56:35,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 21:56:35,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 21:56:35,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 21:56:35,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 21:56:35,361 INFO L440 ceAbstractionStarter]: At program point L3-2(lines 2 7) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-23 21:56:35,362 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 21:56:35,362 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-23 21:56:35,362 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 21:56:35,362 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 21:56:35,363 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-11-23 21:56:35,363 INFO L444 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-11-23 21:56:35,363 INFO L444 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-11-23 21:56:35,364 INFO L440 ceAbstractionStarter]: At program point L35(lines 27 36) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-23 21:56:35,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:56:35 BoogieIcfgContainer [2019-11-23 21:56:35,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 21:56:35,382 INFO L168 Benchmark]: Toolchain (without parser) took 1219.59 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 141.1 MB in the end (delta: -38.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:35,383 INFO L168 Benchmark]: CDTParser took 1.43 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-23 21:56:35,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.51 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 92.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:35,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.69 ms. Allocated memory was 138.9 MB in the beginning and 202.9 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: -88.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:35,386 INFO L168 Benchmark]: Boogie Preprocessor took 30.26 ms. Allocated memory is still 202.9 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. [2019-11-23 21:56:35,387 INFO L168 Benchmark]: RCFGBuilder took 246.85 ms. Allocated memory is still 202.9 MB. Free memory was 179.2 MB in the beginning and 165.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:35,388 INFO L168 Benchmark]: TraceAbstraction took 546.41 ms. Allocated memory is still 202.9 MB. Free memory was 165.2 MB in the beginning and 141.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-11-23 21:56:35,393 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.51 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 92.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 123.69 ms. Allocated memory was 138.9 MB in the beginning and 202.9 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: -88.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.26 ms. Allocated memory is still 202.9 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 246.85 ms. Allocated memory is still 202.9 MB. Free memory was 179.2 MB in the beginning and 165.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 546.41 ms. Allocated memory is still 202.9 MB. Free memory was 165.2 MB in the beginning and 141.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 2]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...