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/test18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:39,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:39,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:39,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:39,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:39,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:39,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:39,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:39,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:39,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:39,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:39,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:39,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:39,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:39,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:39,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:39,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:39,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:39,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:39,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:39,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:39,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:39,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:39,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:39,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:28:39,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:28:39,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:28:39,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:28:39,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:28:39,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:28:39,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:39,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:39,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:39,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:39,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:39,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:39,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:39,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:39,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:39,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:39,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:39,654 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 [2019-09-20 13:28:39,683 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:39,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:39,684 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:39,684 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:39,688 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:39,688 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:39,688 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:39,688 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:39,689 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:39,689 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:39,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:39,690 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:39,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:39,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:39,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:39,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:39,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:39,691 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:39,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:39,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:39,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:39,693 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:39,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:39,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:39,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:39,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:39,695 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:39,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:39,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:39,695 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:39,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:39,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:39,762 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:39,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:39,764 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:39,764 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2019-09-20 13:28:39,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/892cd8b78/bd9b612c12fa4bb89dc7c8eca9fe1ee4/FLAG6e3b25fe2 [2019-09-20 13:28:40,250 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:40,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test18.c [2019-09-20 13:28:40,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/892cd8b78/bd9b612c12fa4bb89dc7c8eca9fe1ee4/FLAG6e3b25fe2 [2019-09-20 13:28:40,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/892cd8b78/bd9b612c12fa4bb89dc7c8eca9fe1ee4 [2019-09-20 13:28:40,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:40,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:40,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:40,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:40,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:40,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:40,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df957dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40, skipping insertion in model container [2019-09-20 13:28:40,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:40,619 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:40,636 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:40,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:40,856 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:40,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:40,898 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:40,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40 WrapperNode [2019-09-20 13:28:40,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:40,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:40,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:40,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:40,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:40,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:41,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:41,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:41,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:41,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:41,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:41,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:41,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:41,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:41,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:41,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40" (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 [2019-09-20 13:28:41,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:41,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:41,090 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-09-20 13:28:41,091 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-20 13:28:41,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-09-20 13:28:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:28:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:28:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-20 13:28:41,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:28:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:41,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:41,355 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:41,356 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:28:41,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:41 BoogieIcfgContainer [2019-09-20 13:28:41,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:41,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:41,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:41,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:41,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:40" (1/3) ... [2019-09-20 13:28:41,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b535fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:41, skipping insertion in model container [2019-09-20 13:28:41,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40" (2/3) ... [2019-09-20 13:28:41,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b535fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:41, skipping insertion in model container [2019-09-20 13:28:41,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:41" (3/3) ... [2019-09-20 13:28:41,386 INFO L109 eAbstractionObserver]: Analyzing ICFG test18.c [2019-09-20 13:28:41,411 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:41,424 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:41,457 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:41,481 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:41,482 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:41,482 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:41,482 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:41,482 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:41,482 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:41,483 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:41,483 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:41,499 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-09-20 13:28:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-20 13:28:41,509 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:41,509 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:41,511 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:41,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:41,520 INFO L82 PathProgramCache]: Analyzing trace with hash 731851180, now seen corresponding path program 1 times [2019-09-20 13:28:41,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:41,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:41,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:41,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:41,576 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:41,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:41,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:41,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:28:41,905 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:41,913 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:28:41,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:28:41,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:28:41,932 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 9 states. [2019-09-20 13:28:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:42,141 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-09-20 13:28:42,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:28:42,143 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-09-20 13:28:42,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:42,151 INFO L225 Difference]: With dead ends: 21 [2019-09-20 13:28:42,151 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:42,153 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:28:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:42,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:42,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:42,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:42,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-09-20 13:28:42,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:42,184 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:42,184 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:28:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:42,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:42,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:42 BoogieIcfgContainer [2019-09-20 13:28:42,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:42,193 INFO L168 Benchmark]: Toolchain (without parser) took 1590.65 ms. Allocated memory was 138.4 MB in the beginning and 197.7 MB in the end (delta: 59.2 MB). Free memory was 86.3 MB in the beginning and 114.3 MB in the end (delta: -28.0 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,195 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.44 ms. Allocated memory is still 138.4 MB. Free memory was 86.1 MB in the beginning and 76.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,197 INFO L168 Benchmark]: Boogie Preprocessor took 124.93 ms. Allocated memory was 138.4 MB in the beginning and 197.7 MB in the end (delta: 59.2 MB). Free memory was 76.5 MB in the beginning and 174.3 MB in the end (delta: -97.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,198 INFO L168 Benchmark]: RCFGBuilder took 333.18 ms. Allocated memory is still 197.7 MB. Free memory was 174.3 MB in the beginning and 159.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,199 INFO L168 Benchmark]: TraceAbstraction took 830.66 ms. Allocated memory is still 197.7 MB. Free memory was 158.4 MB in the beginning and 114.3 MB in the end (delta: 44.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,203 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.44 ms. Allocated memory is still 138.4 MB. Free memory was 86.1 MB in the beginning and 76.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.93 ms. Allocated memory was 138.4 MB in the beginning and 197.7 MB in the end (delta: 59.2 MB). Free memory was 76.5 MB in the beginning and 174.3 MB in the end (delta: -97.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 333.18 ms. Allocated memory is still 197.7 MB. Free memory was 174.3 MB in the beginning and 159.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 830.66 ms. Allocated memory is still 197.7 MB. Free memory was 158.4 MB in the beginning and 114.3 MB in the end (delta: 44.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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 5 procedures, 23 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 4 SDslu, 56 SDs, 0 SdLazy, 75 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 1955 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...