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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-multidimensional/init-3-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 16:30:21,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 16:30:21,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 16:30:21,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 16:30:21,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 16:30:21,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 16:30:21,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 16:30:21,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 16:30:21,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 16:30:21,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 16:30:21,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 16:30:21,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 16:30:21,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 16:30:21,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 16:30:21,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 16:30:21,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 16:30:21,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 16:30:21,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 16:30:21,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 16:30:21,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 16:30:21,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 16:30:21,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 16:30:21,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 16:30:21,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 16:30:21,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 16:30:21,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 16:30:21,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 16:30:21,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 16:30:21,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 16:30:21,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 16:30:21,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 16:30:21,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 16:30:21,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 16:30:21,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 16:30:21,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 16:30:21,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 16:30:21,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 16:30:21,393 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 16:30:21,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 16:30:21,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 16:30:21,394 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 16:30:21,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 16:30:21,395 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 16:30:21,396 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 16:30:21,396 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 16:30:21,396 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 16:30:21,397 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 16:30:21,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 16:30:21,397 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 16:30:21,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 16:30:21,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 16:30:21,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 16:30:21,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 16:30:21,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 16:30:21,400 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 16:30:21,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 16:30:21,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 16:30:21,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 16:30:21,400 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 16:30:21,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 16:30:21,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 16:30:21,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 16:30:21,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 16:30:21,402 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 16:30:21,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 16:30:21,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 16:30:21,402 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 16:30:21,452 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 16:30:21,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 16:30:21,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 16:30:21,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 16:30:21,471 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 16:30:21,472 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/init-3-u.c [2019-10-02 16:30:21,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75382b418/df7bb405b21d47be842b4c1144bbe05f/FLAG51dd0e565 [2019-10-02 16:30:21,989 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 16:30:21,990 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/init-3-u.c [2019-10-02 16:30:21,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75382b418/df7bb405b21d47be842b4c1144bbe05f/FLAG51dd0e565 [2019-10-02 16:30:22,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75382b418/df7bb405b21d47be842b4c1144bbe05f [2019-10-02 16:30:22,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 16:30:22,405 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 16:30:22,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 16:30:22,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 16:30:22,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 16:30:22,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142c7701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22, skipping insertion in model container [2019-10-02 16:30:22,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,421 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 16:30:22,438 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 16:30:22,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:30:22,679 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 16:30:22,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:30:22,811 INFO L192 MainTranslator]: Completed translation [2019-10-02 16:30:22,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22 WrapperNode [2019-10-02 16:30:22,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 16:30:22,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 16:30:22,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 16:30:22,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 16:30:22,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22" (1/1) ... [2019-10-02 16:30:22,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 16:30:22,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 16:30:22,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 16:30:22,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 16:30:22,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22" (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 16:30:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 16:30:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 16:30:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 16:30:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 16:30:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 16:30:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 16:30:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 16:30:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 16:30:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 16:30:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 16:30:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 16:30:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 16:30:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 16:30:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 16:30:23,233 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 16:30:23,236 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-02 16:30:23,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:30:23 BoogieIcfgContainer [2019-10-02 16:30:23,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 16:30:23,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 16:30:23,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 16:30:23,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 16:30:23,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 04:30:22" (1/3) ... [2019-10-02 16:30:23,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed91369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:30:23, skipping insertion in model container [2019-10-02 16:30:23,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:30:22" (2/3) ... [2019-10-02 16:30:23,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed91369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:30:23, skipping insertion in model container [2019-10-02 16:30:23,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:30:23" (3/3) ... [2019-10-02 16:30:23,255 INFO L109 eAbstractionObserver]: Analyzing ICFG init-3-u.c [2019-10-02 16:30:23,275 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 16:30:23,288 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 16:30:23,306 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 16:30:23,329 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 16:30:23,329 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 16:30:23,330 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 16:30:23,330 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 16:30:23,330 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 16:30:23,330 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 16:30:23,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 16:30:23,330 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 16:30:23,343 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-10-02 16:30:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-02 16:30:23,351 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:23,352 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:23,354 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:23,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:23,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1375180307, now seen corresponding path program 1 times [2019-10-02 16:30:23,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:23,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:23,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:23,411 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:23,450 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 16:30:23,451 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 16:30:23,451 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 16:30:23,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,494 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-10-02 16:30:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:23,526 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-10-02 16:30:23,528 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-02 16:30:23,528 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 16:30:23,528 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-10-02 16:30:23,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,551 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 16:30:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:23,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-02 16:30:23,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 16:30:23,609 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 16:30:23,609 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-02 16:30:23,632 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 16:30:23,638 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:23,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-02 16:30:23,639 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:23,643 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 16:30:23,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 16:30:23,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:30:23,664 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-10-02 16:30:23,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:23,680 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-10-02 16:30:23,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 16:30:23,681 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-02 16:30:23,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:23,690 INFO L225 Difference]: With dead ends: 30 [2019-10-02 16:30:23,690 INFO L226 Difference]: Without dead ends: 25 [2019-10-02 16:30:23,692 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:30:23,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-02 16:30:23,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-02 16:30:23,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-02 16:30:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-10-02 16:30:23,726 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 15 [2019-10-02 16:30:23,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:23,727 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-10-02 16:30:23,727 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 16:30:23,727 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-10-02 16:30:23,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-02 16:30:23,728 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:23,728 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:23,728 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:23,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:23,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1308846031, now seen corresponding path program 1 times [2019-10-02 16:30:23,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:23,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:23,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:23,731 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:23,739 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 16:30:23,740 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 16:30:23,740 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-10-02 16:30:23,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,774 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 16:30:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:23,795 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-10-02 16:30:23,796 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-02 16:30:23,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 16:30:23,796 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 16:30:23,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,823 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-10-02 16:30:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:23,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-02 16:30:23,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 16:30:23,881 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 16:30:23,881 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-02 16:30:23,904 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 16:30:23,908 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:23,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-02 16:30:23,909 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:23,909 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 16:30:23,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 16:30:23,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:30:23,910 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 3 states. [2019-10-02 16:30:23,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:23,964 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2019-10-02 16:30:23,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 16:30:23,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-02 16:30:23,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:23,966 INFO L225 Difference]: With dead ends: 30 [2019-10-02 16:30:23,966 INFO L226 Difference]: Without dead ends: 30 [2019-10-02 16:30:23,967 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:30:23,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-02 16:30:23,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2019-10-02 16:30:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-02 16:30:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2019-10-02 16:30:23,973 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 15 [2019-10-02 16:30:23,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:23,974 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2019-10-02 16:30:23,974 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 16:30:23,974 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-10-02 16:30:23,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-02 16:30:23,975 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:30:23,975 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:30:23,975 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:30:23,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:23,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1886649102, now seen corresponding path program 1 times [2019-10-02 16:30:23,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:30:23,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:23,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:23,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:30:23,978 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:30:23,986 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-10-02 16:30:23,986 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-10-02 16:30:23,986 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-02 16:30:24,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:30:24,008 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-10-02 16:30:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:30:24,028 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2019-10-02 16:30:24,030 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [12], [14], [21], [40], [44], [53], [62], [71], [87], [90], [92], [98], [99], [100], [102] [2019-10-02 16:30:24,079 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 16:30:24,079 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 16:30:24,183 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 16:30:24,185 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 16 root evaluator evaluations with a maximum evaluation depth of 0. Performed 16 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 21 variables. [2019-10-02 16:30:24,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:30:24,189 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 16:30:24,248 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-02 16:30:24,249 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 16:30:24,252 INFO L420 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-10-02 16:30:24,252 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 16:30:24,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:30:24,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 16:30:24,254 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:30:24,254 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 16:30:24,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 16:30:24,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:30:24,256 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 2 states. [2019-10-02 16:30:24,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:30:24,258 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-02 16:30:24,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 16:30:24,259 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-02 16:30:24,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:30:24,259 INFO L225 Difference]: With dead ends: 6 [2019-10-02 16:30:24,259 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 16:30:24,260 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:30:24,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 16:30:24,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 16:30:24,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 16:30:24,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 16:30:24,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-02 16:30:24,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:30:24,262 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 16:30:24,262 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 16:30:24,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 16:30:24,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 16:30:24,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 04:30:24 BoogieIcfgContainer [2019-10-02 16:30:24,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 16:30:24,273 INFO L168 Benchmark]: Toolchain (without parser) took 1865.12 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 90.2 MB in the beginning and 88.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,274 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.7 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.66 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 90.0 MB in the beginning and 176.7 MB in the end (delta: -86.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,278 INFO L168 Benchmark]: Boogie Preprocessor took 59.67 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 174.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,279 INFO L168 Benchmark]: RCFGBuilder took 365.31 ms. Allocated memory is still 199.2 MB. Free memory was 174.4 MB in the beginning and 159.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,281 INFO L168 Benchmark]: TraceAbstraction took 1023.79 ms. Allocated memory is still 199.2 MB. Free memory was 158.6 MB in the beginning and 88.2 MB in the end (delta: 70.4 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. [2019-10-02 16:30:24,292 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.7 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 406.66 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 90.0 MB in the beginning and 176.7 MB in the end (delta: -86.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.67 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 174.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 365.31 ms. Allocated memory is still 199.2 MB. Free memory was 174.4 MB in the beginning and 159.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1023.79 ms. Allocated memory is still 199.2 MB. Free memory was 158.6 MB in the beginning and 88.2 MB in the end (delta: 70.4 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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, 30 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 6 SDslu, 15 SDs, 0 SdLazy, 20 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.8970588235294118 AbsIntWeakeningRatio, 1.1764705882352942 AbsIntAvgWeakeningVarsNumRemoved, 0.35294117647058826 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 896 SizeOfPredicates, 2 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...