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/nested_structure_ptr-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 10:18:18,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 10:18:18,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 10:18:18,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 10:18:18,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 10:18:18,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 10:18:18,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 10:18:18,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 10:18:18,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 10:18:18,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 10:18:18,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 10:18:18,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 10:18:18,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 10:18:18,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 10:18:18,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 10:18:18,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 10:18:18,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 10:18:18,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 10:18:18,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 10:18:18,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 10:18:18,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 10:18:18,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 10:18:18,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 10:18:18,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 10:18:18,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 10:18:18,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 10:18:18,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 10:18:18,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 10:18:18,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 10:18:18,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 10:18:18,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 10:18:18,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 10:18:18,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 10:18:18,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 10:18:18,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 10:18:18,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 10:18:18,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 10:18:18,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 10:18:18,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 10:18:18,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 10:18:18,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 10:18:18,494 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 [2019-10-02 10:18:18,522 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 10:18:18,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 10:18:18,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 10:18:18,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 10:18:18,527 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 10:18:18,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 10:18:18,527 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 10:18:18,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 10:18:18,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 10:18:18,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 10:18:18,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 10:18:18,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 10:18:18,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 10:18:18,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 10:18:18,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 10:18:18,530 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 10:18:18,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 10:18:18,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 10:18:18,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 10:18:18,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 10:18:18,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 10:18:18,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 10:18:18,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 10:18:18,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 10:18:18,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 10:18:18,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 10:18:18,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 10:18:18,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 10:18:18,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 10:18:18,598 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 10:18:18,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 10:18:18,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 10:18:18,619 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 10:18:18,620 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 10:18:18,620 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_ptr-2.i [2019-10-02 10:18:18,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be778a6d/2ae1869150e3402095035b7f52e89a68/FLAG7c013a283 [2019-10-02 10:18:19,197 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 10:18:19,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_ptr-2.i [2019-10-02 10:18:19,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be778a6d/2ae1869150e3402095035b7f52e89a68/FLAG7c013a283 [2019-10-02 10:18:19,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be778a6d/2ae1869150e3402095035b7f52e89a68 [2019-10-02 10:18:19,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 10:18:19,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 10:18:19,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 10:18:19,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 10:18:19,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 10:18:19,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:19" (1/1) ... [2019-10-02 10:18:19,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2a3789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19, skipping insertion in model container [2019-10-02 10:18:19,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:19" (1/1) ... [2019-10-02 10:18:19,524 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 10:18:19,541 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 10:18:19,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:18:19,732 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 10:18:19,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:18:19,883 INFO L192 MainTranslator]: Completed translation [2019-10-02 10:18:19,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19 WrapperNode [2019-10-02 10:18:19,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 10:18:19,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 10:18:19,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 10:18:19,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 10:18:19,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19" (1/1) ... [2019-10-02 10:18:19,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19" (1/1) ... [2019-10-02 10:18:19,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19" (1/1) ... [2019-10-02 10:18:19,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19" (1/1) ... [2019-10-02 10:18:19,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19" (1/1) ... [2019-10-02 10:18:19,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19" (1/1) ... [2019-10-02 10:18:19,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19" (1/1) ... [2019-10-02 10:18:19,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 10:18:19,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 10:18:19,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 10:18:19,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 10:18:19,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19" (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 [2019-10-02 10:18:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 10:18:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 10:18:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 10:18:19,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 10:18:19,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 10:18:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 10:18:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 10:18:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2019-10-02 10:18:20,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2019-10-02 10:18:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 10:18:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 10:18:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 10:18:20,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 10:18:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 10:18:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 10:18:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 10:18:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 10:18:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 10:18:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 10:18:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 10:18:20,288 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 10:18:20,288 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-02 10:18:20,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:20 BoogieIcfgContainer [2019-10-02 10:18:20,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 10:18:20,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 10:18:20,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 10:18:20,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 10:18:20,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:18:19" (1/3) ... [2019-10-02 10:18:20,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7443fc57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:20, skipping insertion in model container [2019-10-02 10:18:20,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:19" (2/3) ... [2019-10-02 10:18:20,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7443fc57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:20, skipping insertion in model container [2019-10-02 10:18:20,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:20" (3/3) ... [2019-10-02 10:18:20,308 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-2.i [2019-10-02 10:18:20,329 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 10:18:20,347 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 10:18:20,387 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 10:18:20,429 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 10:18:20,431 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 10:18:20,431 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 10:18:20,431 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 10:18:20,432 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 10:18:20,432 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 10:18:20,432 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 10:18:20,433 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 10:18:20,433 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 10:18:20,455 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-02 10:18:20,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-02 10:18:20,468 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:18:20,469 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:18:20,471 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:18:20,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:18:20,477 INFO L82 PathProgramCache]: Analyzing trace with hash -715594688, now seen corresponding path program 1 times [2019-10-02 10:18:20,478 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:18:20,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:18:20,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:20,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:18:20,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:18:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:18:20,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 10:18:20,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:18:20,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 10:18:20,905 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 10:18:20,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 10:18:20,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 10:18:20,928 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2019-10-02 10:18:21,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:18:21,024 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-10-02 10:18:21,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 10:18:21,028 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-02 10:18:21,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:18:21,041 INFO L225 Difference]: With dead ends: 25 [2019-10-02 10:18:21,042 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 10:18:21,050 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-02 10:18:21,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 10:18:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 10:18:21,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 10:18:21,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 10:18:21,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-02 10:18:21,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:18:21,090 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 10:18:21,091 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 10:18:21,092 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 10:18:21,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 10:18:21,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 10:18:21,136 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-02 10:18:21,136 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-02 10:18:21,136 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 10:18:21,137 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 10:18:21,137 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-02 10:18:21,137 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 10:18:21,137 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 10:18:21,138 INFO L443 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2019-10-02 10:18:21,138 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 27 36) the Hoare annotation is: true [2019-10-02 10:18:21,138 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 27 36) no Hoare annotation was computed. [2019-10-02 10:18:21,138 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 27 36) no Hoare annotation was computed. [2019-10-02 10:18:21,139 INFO L439 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: (= 4 |main_#t~mem4|) [2019-10-02 10:18:21,139 INFO L443 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2019-10-02 10:18:21,139 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2019-10-02 10:18:21,139 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2019-10-02 10:18:21,139 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-10-02 10:18:21,139 INFO L443 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-10-02 10:18:21,140 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-10-02 10:18:21,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:18:21 BoogieIcfgContainer [2019-10-02 10:18:21,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 10:18:21,147 INFO L168 Benchmark]: Toolchain (without parser) took 1639.02 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 86.7 MB in the beginning and 129.3 MB in the end (delta: -42.5 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:21,149 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 10:18:21,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.76 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 86.5 MB in the beginning and 178.7 MB in the end (delta: -92.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:21,151 INFO L168 Benchmark]: Boogie Preprocessor took 56.44 ms. Allocated memory is still 200.3 MB. Free memory was 178.7 MB in the beginning and 176.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:21,152 INFO L168 Benchmark]: RCFGBuilder took 347.80 ms. Allocated memory is still 200.3 MB. Free memory was 176.4 MB in the beginning and 160.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:21,153 INFO L168 Benchmark]: TraceAbstraction took 851.97 ms. Allocated memory is still 200.3 MB. Free memory was 160.2 MB in the beginning and 129.3 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2019-10-02 10:18:21,157 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 376.76 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 86.5 MB in the beginning and 178.7 MB in the end (delta: -92.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.44 ms. Allocated memory is still 200.3 MB. Free memory was 178.7 MB in the beginning and 176.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 347.80 ms. Allocated memory is still 200.3 MB. Free memory was 176.4 MB in the beginning and 160.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 851.97 ms. Allocated memory is still 200.3 MB. Free memory was 160.2 MB in the beginning and 129.3 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 31 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...