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/ldv-regression/test16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:06:50,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:06:50,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:06:50,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:06:50,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:06:50,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:06:50,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:06:50,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:06:50,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:06:50,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:06:50,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:06:50,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:06:50,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:06:50,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:06:50,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:06:50,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:06:50,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:06:50,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:06:50,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:06:50,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:06:50,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:06:50,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:06:50,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:06:50,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:06:50,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:06:50,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:06:50,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:06:50,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:06:50,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:06:50,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:06:50,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:06:50,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:06:50,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:06:50,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:06:50,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:06:50,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:06:50,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:06:50,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:06:50,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:06:50,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:06:50,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:06:50,480 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 [2019-09-16 17:06:50,499 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:06:50,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:06:50,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:06:50,501 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:06:50,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:06:50,502 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:06:50,503 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:06:50,503 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:06:50,503 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:06:50,503 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:06:50,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:06:50,505 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:06:50,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:06:50,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:06:50,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:06:50,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:06:50,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:06:50,507 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:06:50,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:06:50,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:06:50,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:06:50,508 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:06:50,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:06:50,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:06:50,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:06:50,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:06:50,509 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:06:50,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:06:50,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:06:50,509 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:06:50,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:06:50,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:06:50,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:06:50,565 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:06:50,565 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:06:50,566 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test16.c [2019-09-16 17:06:50,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e7fc4d8/384d13f80976454caf6b0bdd694fa5b2/FLAG9ff48b81a [2019-09-16 17:06:51,086 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:06:51,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test16.c [2019-09-16 17:06:51,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e7fc4d8/384d13f80976454caf6b0bdd694fa5b2/FLAG9ff48b81a [2019-09-16 17:06:51,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1e7fc4d8/384d13f80976454caf6b0bdd694fa5b2 [2019-09-16 17:06:51,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:06:51,462 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:06:51,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:06:51,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:06:51,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:06:51,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:06:51" (1/1) ... [2019-09-16 17:06:51,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fcc0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51, skipping insertion in model container [2019-09-16 17:06:51,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:06:51" (1/1) ... [2019-09-16 17:06:51,482 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:06:51,503 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:06:51,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:06:51,712 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:06:51,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:06:51,746 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:06:51,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51 WrapperNode [2019-09-16 17:06:51,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:06:51,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:06:51,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:06:51,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:06:51,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51" (1/1) ... [2019-09-16 17:06:51,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51" (1/1) ... [2019-09-16 17:06:51,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51" (1/1) ... [2019-09-16 17:06:51,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51" (1/1) ... [2019-09-16 17:06:51,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51" (1/1) ... [2019-09-16 17:06:51,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51" (1/1) ... [2019-09-16 17:06:51,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51" (1/1) ... [2019-09-16 17:06:51,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:06:51,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:06:51,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:06:51,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:06:51,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51" (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 [2019-09-16 17:06:51,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:06:51,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:06:51,929 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2019-09-16 17:06:51,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:06:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:06:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2019-09-16 17:06:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:06:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:06:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:06:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:06:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:06:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:06:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:06:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:06:52,135 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:06:52,135 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 17:06:52,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:06:52 BoogieIcfgContainer [2019-09-16 17:06:52,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:06:52,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:06:52,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:06:52,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:06:52,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:06:51" (1/3) ... [2019-09-16 17:06:52,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b68263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:06:52, skipping insertion in model container [2019-09-16 17:06:52,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:06:51" (2/3) ... [2019-09-16 17:06:52,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b68263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:06:52, skipping insertion in model container [2019-09-16 17:06:52,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:06:52" (3/3) ... [2019-09-16 17:06:52,146 INFO L109 eAbstractionObserver]: Analyzing ICFG test16.c [2019-09-16 17:06:52,156 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:06:52,164 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:06:52,180 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:06:52,207 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:06:52,207 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:06:52,207 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:06:52,207 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:06:52,207 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:06:52,207 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:06:52,207 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:06:52,208 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:06:52,219 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-09-16 17:06:52,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-16 17:06:52,228 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:06:52,229 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:06:52,231 INFO L418 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:06:52,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:06:52,237 INFO L82 PathProgramCache]: Analyzing trace with hash 390654600, now seen corresponding path program 1 times [2019-09-16 17:06:52,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:06:52,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:06:52,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:06:52,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:06:52,287 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:06:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:06:52,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:06:52,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:06:52,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:06:52,562 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:06:52,573 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:06:52,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:06:52,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:06:52,590 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2019-09-16 17:06:52,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:06:52,731 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-09-16 17:06:52,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:06:52,733 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-09-16 17:06:52,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:06:52,740 INFO L225 Difference]: With dead ends: 16 [2019-09-16 17:06:52,741 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:06:52,743 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:06:52,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:06:52,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:06:52,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:06:52,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:06:52,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-09-16 17:06:52,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:06:52,772 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:06:52,772 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:06:52,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:06:52,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:06:52,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:06:52 BoogieIcfgContainer [2019-09-16 17:06:52,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:06:52,782 INFO L168 Benchmark]: Toolchain (without parser) took 1319.27 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 88.3 MB in the beginning and 128.5 MB in the end (delta: -40.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:52,783 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.1 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:06:52,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.84 ms. Allocated memory is still 132.1 MB. Free memory was 87.9 MB in the beginning and 78.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:52,786 INFO L168 Benchmark]: Boogie Preprocessor took 127.08 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 78.0 MB in the beginning and 175.1 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:52,786 INFO L168 Benchmark]: RCFGBuilder took 260.82 ms. Allocated memory is still 198.7 MB. Free memory was 175.1 MB in the beginning and 161.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:52,787 INFO L168 Benchmark]: TraceAbstraction took 640.03 ms. Allocated memory is still 198.7 MB. Free memory was 161.5 MB in the beginning and 128.5 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:06:52,792 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 132.1 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 282.84 ms. Allocated memory is still 132.1 MB. Free memory was 87.9 MB in the beginning and 78.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.08 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 78.0 MB in the beginning and 175.1 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 260.82 ms. Allocated memory is still 198.7 MB. Free memory was 175.1 MB in the beginning and 161.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 640.03 ms. Allocated memory is still 198.7 MB. Free memory was 161.5 MB in the beginning and 128.5 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 13 SDslu, 18 SDs, 0 SdLazy, 13 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 387 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...