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/test19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:39,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:39,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:39,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:39,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:39,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:39,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:39,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:39,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:39,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:39,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:39,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:39,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:39,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:39,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:39,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:39,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:39,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:39,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:39,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:39,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:39,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:39,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:39,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:39,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:28:39,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:28:39,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:28:39,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:28:39,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:28:39,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:28:39,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:39,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:39,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:39,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:39,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:39,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:39,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:39,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:39,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:39,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:39,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:39,707 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 13:28:39,721 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:39,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:39,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:39,722 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:39,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:39,723 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:39,724 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:39,724 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:39,724 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:39,724 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:39,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:39,725 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:39,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:39,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:39,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:39,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:39,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:39,726 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:39,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:39,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:39,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:39,727 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:39,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:39,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:39,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:39,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:39,728 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:39,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:39,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:39,729 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:39,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:39,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:39,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:39,781 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:39,782 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:39,783 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test19.c [2019-09-20 13:28:39,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88e2c4b2/ab0099ce4f8e423cb81f8785c5efa2f6/FLAG39124cc32 [2019-09-20 13:28:40,252 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:40,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test19.c [2019-09-20 13:28:40,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88e2c4b2/ab0099ce4f8e423cb81f8785c5efa2f6/FLAG39124cc32 [2019-09-20 13:28:40,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88e2c4b2/ab0099ce4f8e423cb81f8785c5efa2f6 [2019-09-20 13:28:40,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:40,641 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:40,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:40,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:40,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:40,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:40,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c806856 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 13:28:40,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:40" (1/1) ... [2019-09-20 13:28:40,660 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:40,677 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:40,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:40,861 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:40,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:40,891 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:40,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:40 WrapperNode [2019-09-20 13:28:40,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:40,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:40,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:40,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:40,990 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 13:28:40,990 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 13:28:40,999 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 13:28:40,999 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 13:28:41,006 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 13:28:41,009 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 13:28:41,010 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 13:28:41,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:41,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:41,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:41,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:41,015 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 13:28:41,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:41,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:41,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2019-09-20 13:28:41,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:41,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:41,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:28:41,073 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2019-09-20 13:28:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:28:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:28:41,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:28:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:28:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:41,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:28:41,291 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:41,291 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:28:41,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:41 BoogieIcfgContainer [2019-09-20 13:28:41,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:41,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:41,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:41,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:41,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:40" (1/3) ... [2019-09-20 13:28:41,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da73b91 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 13:28:41,300 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 13:28:41,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da73b91 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 13:28:41,301 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 13:28:41,303 INFO L109 eAbstractionObserver]: Analyzing ICFG test19.c [2019-09-20 13:28:41,331 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:41,342 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:41,371 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:41,405 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:41,406 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:41,406 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:41,406 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:41,407 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:41,407 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:41,407 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:41,407 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:41,423 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-09-20 13:28:41,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-20 13:28:41,444 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:41,445 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:41,447 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:41,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:41,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1876068538, now seen corresponding path program 1 times [2019-09-20 13:28:41,456 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:41,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:41,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:41,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:41,506 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:41,818 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 13:28:41,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:41,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:28:41,823 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:41,829 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:28:41,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:28:41,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:28:41,852 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2019-09-20 13:28:42,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:42,044 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-09-20 13:28:42,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:28:42,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-09-20 13:28:42,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:42,054 INFO L225 Difference]: With dead ends: 16 [2019-09-20 13:28:42,054 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:42,056 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:28:42,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:42,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:42,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:42,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-09-20 13:28:42,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:42,086 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:42,086 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:28:42,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:42,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:42,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:42 BoogieIcfgContainer [2019-09-20 13:28:42,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:42,095 INFO L168 Benchmark]: Toolchain (without parser) took 1452.27 ms. Allocated memory was 129.5 MB in the beginning and 198.2 MB in the end (delta: 68.7 MB). Free memory was 85.5 MB in the beginning and 113.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 41.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,096 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 129.5 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.59 ms. Allocated memory is still 129.5 MB. Free memory was 85.3 MB in the beginning and 75.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,098 INFO L168 Benchmark]: Boogie Preprocessor took 120.83 ms. Allocated memory was 129.5 MB in the beginning and 198.2 MB in the end (delta: 68.7 MB). Free memory was 75.5 MB in the beginning and 174.3 MB in the end (delta: -98.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,099 INFO L168 Benchmark]: RCFGBuilder took 279.94 ms. Allocated memory is still 198.2 MB. Free memory was 173.6 MB in the beginning and 158.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,100 INFO L168 Benchmark]: TraceAbstraction took 797.40 ms. Allocated memory is still 198.2 MB. Free memory was 157.4 MB in the beginning and 113.2 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:42,104 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 129.5 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 246.59 ms. Allocated memory is still 129.5 MB. Free memory was 85.3 MB in the beginning and 75.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.83 ms. Allocated memory was 129.5 MB in the beginning and 198.2 MB in the end (delta: 68.7 MB). Free memory was 75.5 MB in the beginning and 174.3 MB in the end (delta: -98.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 279.94 ms. Allocated memory is still 198.2 MB. Free memory was 173.6 MB in the beginning and 158.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 797.40 ms. Allocated memory is still 198.2 MB. Free memory was 157.4 MB in the beginning and 113.2 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 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 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 4 SDslu, 27 SDs, 0 SdLazy, 41 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 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, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 2028 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...