java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:09:34,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:09:34,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:09:34,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:09:34,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:09:34,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:09:34,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:09:34,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:09:34,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:09:34,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:09:34,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:09:34,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:09:34,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:09:34,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:09:34,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:09:34,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:09:34,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:09:34,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:09:34,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:09:34,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:09:34,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:09:34,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:09:34,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:09:34,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:09:34,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:09:34,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:09:34,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:09:34,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:09:34,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:09:34,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:09:34,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:09:34,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:09:34,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:09:34,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:09:34,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:09:34,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:09:34,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:09:34,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:09:34,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:09:34,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:09:34,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:09:34,914 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 [2019-10-13 19:09:34,928 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:09:34,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:09:34,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:09:34,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:09:34,930 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:09:34,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:09:34,930 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:09:34,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:09:34,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:09:34,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:09:34,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:09:34,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:09:34,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:09:34,932 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:09:34,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:09:34,932 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:09:34,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:09:34,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:09:34,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:09:34,933 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:09:34,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:09:34,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:09:34,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:09:34,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:09:34,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:09:34,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:09:34,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:09:34,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:09:34,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:09:35,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:09:35,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:09:35,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:09:35,226 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:09:35,226 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:09:35,227 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test16.c [2019-10-13 19:09:35,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199807a14/2ce6fbbc79a840dfb59a113f58e7b8e4/FLAG69f72a59c [2019-10-13 19:09:35,730 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:09:35,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test16.c [2019-10-13 19:09:35,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199807a14/2ce6fbbc79a840dfb59a113f58e7b8e4/FLAG69f72a59c [2019-10-13 19:09:36,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199807a14/2ce6fbbc79a840dfb59a113f58e7b8e4 [2019-10-13 19:09:36,138 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:09:36,140 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:09:36,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:09:36,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:09:36,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:09:36,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:36" (1/1) ... [2019-10-13 19:09:36,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3d8d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36, skipping insertion in model container [2019-10-13 19:09:36,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:36" (1/1) ... [2019-10-13 19:09:36,156 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:09:36,172 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:09:36,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:09:36,350 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:09:36,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:09:36,379 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:09:36,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36 WrapperNode [2019-10-13 19:09:36,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:09:36,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:09:36,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:09:36,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:09:36,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36" (1/1) ... [2019-10-13 19:09:36,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36" (1/1) ... [2019-10-13 19:09:36,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36" (1/1) ... [2019-10-13 19:09:36,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36" (1/1) ... [2019-10-13 19:09:36,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36" (1/1) ... [2019-10-13 19:09:36,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36" (1/1) ... [2019-10-13 19:09:36,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36" (1/1) ... [2019-10-13 19:09:36,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:09:36,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:09:36,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:09:36,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:09:36,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36" (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 [2019-10-13 19:09:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:09:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:09:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2019-10-13 19:09:36,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:09:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:09:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2019-10-13 19:09:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:09:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:09:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:09:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:09:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:09:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:09:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:09:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:09:36,778 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:09:36,779 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:09:36,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:36 BoogieIcfgContainer [2019-10-13 19:09:36,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:09:36,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:09:36,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:09:36,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:09:36,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:09:36" (1/3) ... [2019-10-13 19:09:36,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b5fd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:36, skipping insertion in model container [2019-10-13 19:09:36,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:36" (2/3) ... [2019-10-13 19:09:36,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b5fd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:36, skipping insertion in model container [2019-10-13 19:09:36,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:36" (3/3) ... [2019-10-13 19:09:36,788 INFO L109 eAbstractionObserver]: Analyzing ICFG test16.c [2019-10-13 19:09:36,797 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:09:36,805 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:09:36,818 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:09:36,853 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:09:36,853 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:09:36,853 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:09:36,853 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:09:36,854 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:09:36,854 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:09:36,854 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:09:36,854 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:09:36,876 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-13 19:09:36,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-13 19:09:36,883 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:09:36,884 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:09:36,886 INFO L410 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:09:36,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:09:36,894 INFO L82 PathProgramCache]: Analyzing trace with hash 390654600, now seen corresponding path program 1 times [2019-10-13 19:09:36,903 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:09:36,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925564086] [2019-10-13 19:09:36,903 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:09:36,904 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:09:36,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:09:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:09:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:09:37,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:09:37,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925564086] [2019-10-13 19:09:37,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:09:37,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 19:09:37,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167248573] [2019-10-13 19:09:37,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:09:37,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:09:37,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:09:37,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:09:37,304 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2019-10-13 19:09:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:09:37,606 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-10-13 19:09:37,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:09:37,609 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-10-13 19:09:37,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:09:37,617 INFO L225 Difference]: With dead ends: 25 [2019-10-13 19:09:37,617 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:09:37,621 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:09:37,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:09:37,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:09:37,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:09:37,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:09:37,652 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-13 19:09:37,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:09:37,653 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:09:37,653 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:09:37,653 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:09:37,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:09:37,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:09:37,849 INFO L443 ceAbstractionStarter]: For program point equalEXIT(lines 4 12) no Hoare annotation was computed. [2019-10-13 19:09:37,849 INFO L446 ceAbstractionStarter]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2019-10-13 19:09:37,850 INFO L443 ceAbstractionStarter]: For program point equalFINAL(lines 4 12) no Hoare annotation was computed. [2019-10-13 19:09:37,850 INFO L443 ceAbstractionStarter]: For program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-10-13 19:09:37,850 INFO L439 ceAbstractionStarter]: At program point L6(lines 4 12) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|) (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|))) (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)))) [2019-10-13 19:09:37,850 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-13 19:09:37,851 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:09:37,851 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= ~pa~0.base |old(~pa~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= ~pa~0.offset |old(~pa~0.offset)|) (= ~pb~0.offset |old(~pb~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|) (= ~pb~0.base |old(~pb~0.base)|)) [2019-10-13 19:09:37,851 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:09:37,851 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:09:37,852 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= |~#b~0.base| |~#a~0.base|)) (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) [2019-10-13 19:09:37,853 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:09:37,853 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:09:37,853 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 17 28) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (and (= ~pa~0.base |old(~pa~0.base)|) (= ~pa~0.offset |old(~pa~0.offset)|) (= ~pb~0.offset |old(~pb~0.offset)|) (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|)) (= ~pb~0.base |old(~pb~0.base)|)) (not (= (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|) (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|)))) [2019-10-13 19:09:37,854 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 17 28) no Hoare annotation was computed. [2019-10-13 19:09:37,854 INFO L439 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|)) (not (= (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|) (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|)))) [2019-10-13 19:09:37,854 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-10-13 19:09:37,854 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 17 28) no Hoare annotation was computed. [2019-10-13 19:09:37,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:09:37 BoogieIcfgContainer [2019-10-13 19:09:37,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:09:37,896 INFO L168 Benchmark]: Toolchain (without parser) took 1754.72 ms. Allocated memory was 135.3 MB in the beginning and 226.0 MB in the end (delta: 90.7 MB). Free memory was 100.4 MB in the beginning and 196.8 MB in the end (delta: -96.4 MB). Peak memory consumption was 91.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,896 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 19:09:37,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.43 ms. Allocated memory is still 135.3 MB. Free memory was 99.9 MB in the beginning and 90.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,899 INFO L168 Benchmark]: Boogie Preprocessor took 121.88 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 90.6 MB in the beginning and 177.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,900 INFO L168 Benchmark]: RCFGBuilder took 278.56 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 163.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,901 INFO L168 Benchmark]: TraceAbstraction took 1111.34 ms. Allocated memory was 199.2 MB in the beginning and 226.0 MB in the end (delta: 26.7 MB). Free memory was 163.0 MB in the beginning and 196.8 MB in the end (delta: -33.7 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:09:37,905 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.43 ms. Allocated memory is still 135.3 MB. Free memory was 99.9 MB in the beginning and 90.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.88 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 90.6 MB in the beginning and 177.7 MB in the end (delta: -87.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 278.56 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 163.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1111.34 ms. Allocated memory was 199.2 MB in the beginning and 226.0 MB in the end (delta: 26.7 MB). Free memory was 163.0 MB in the beginning and 196.8 MB in the end (delta: -33.7 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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: 4]: Loop Invariant [2019-10-13 19:09:37,915 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,915 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,916 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,916 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-13 19:09:37,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (a == b || !(unknown-#memory_int-unknown[b][b] == unknown-#memory_int-unknown[a][a])) || !(unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 10 SDtfs, 15 SDslu, 18 SDs, 0 SdLazy, 23 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 150 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 123 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 711 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...