java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:36:50,025 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:36:50,027 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:36:50,040 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:36:50,040 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:36:50,046 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:36:50,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:36:50,051 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:36:50,053 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:36:50,055 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:36:50,056 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:36:50,056 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:36:50,060 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:36:50,061 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:36:50,062 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:36:50,066 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:36:50,068 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:36:50,069 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:36:50,072 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:36:50,073 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:36:50,077 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:36:50,078 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:36:50,083 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:36:50,083 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:36:50,083 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:36:50,086 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:36:50,088 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:36:50,089 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:36:50,089 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:36:50,094 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:36:50,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:36:50,095 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:36:50,096 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:36:50,096 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:36:50,097 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:36:50,098 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:36:50,099 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:36:50,130 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:36:50,130 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:36:50,131 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:36:50,131 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:36:50,131 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:36:50,132 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:36:50,132 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:36:50,133 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:36:50,133 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:36:50,133 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:36:50,133 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:36:50,133 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:36:50,134 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:36:50,134 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:36:50,135 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:36:50,135 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:36:50,135 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:36:50,135 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:36:50,135 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:36:50,136 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:36:50,136 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:36:50,136 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:36:50,136 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:36:50,136 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:36:50,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:36:50,137 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:36:50,137 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:36:50,137 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:36:50,137 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:36:50,138 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:36:50,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:36:50,138 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:36:50,138 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:36:50,139 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:36:50,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:36:50,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:36:50,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:36:50,212 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:36:50,212 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:36:50,213 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c [2018-10-24 18:36:50,287 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/39b76e97d/eeaeee8b18dc451ab379befb2dcaf516/FLAG047ba1be1 [2018-10-24 18:36:50,993 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:36:50,994 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c [2018-10-24 18:36:51,019 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/39b76e97d/eeaeee8b18dc451ab379befb2dcaf516/FLAG047ba1be1 [2018-10-24 18:36:51,043 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/39b76e97d/eeaeee8b18dc451ab379befb2dcaf516 [2018-10-24 18:36:51,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:36:51,059 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:36:51,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:36:51,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:36:51,067 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:36:51,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:51" (1/1) ... [2018-10-24 18:36:51,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b692d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:51, skipping insertion in model container [2018-10-24 18:36:51,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:51" (1/1) ... [2018-10-24 18:36:51,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:36:51,199 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:36:52,041 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:36:52,045 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:36:52,352 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:36:52,376 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:36:52,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52 WrapperNode [2018-10-24 18:36:52,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:36:52,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:36:52,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:36:52,378 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:36:52,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... [2018-10-24 18:36:52,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... [2018-10-24 18:36:52,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:36:52,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:36:52,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:36:52,771 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:36:52,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... [2018-10-24 18:36:52,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... [2018-10-24 18:36:52,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... [2018-10-24 18:36:52,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... [2018-10-24 18:36:52,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... [2018-10-24 18:36:52,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... [2018-10-24 18:36:53,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... [2018-10-24 18:36:53,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:36:53,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:36:53,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:36:53,052 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:36:53,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 18:36:53,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:36:53,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:36:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:36:53,126 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:36:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:36:53,126 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:36:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:36:53,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:36:53,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:36:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:37:01,444 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:37:01,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:37:01 BoogieIcfgContainer [2018-10-24 18:37:01,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:37:01,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:37:01,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:37:01,450 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:37:01,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:36:51" (1/3) ... [2018-10-24 18:37:01,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45164ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:37:01, skipping insertion in model container [2018-10-24 18:37:01,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:52" (2/3) ... [2018-10-24 18:37:01,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45164ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:37:01, skipping insertion in model container [2018-10-24 18:37:01,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:37:01" (3/3) ... [2018-10-24 18:37:01,454 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label14_false-unreach-call.c [2018-10-24 18:37:01,465 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:37:01,475 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:37:01,493 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:37:01,546 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:37:01,546 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:37:01,546 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:37:01,546 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:37:01,546 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:37:01,547 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:37:01,547 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:37:01,547 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:37:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 18:37:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-24 18:37:01,612 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:01,613 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:37:01,616 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:01,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:01,626 INFO L82 PathProgramCache]: Analyzing trace with hash 250004580, now seen corresponding path program 1 times [2018-10-24 18:37:01,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:01,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:01,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:01,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:01,680 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:02,081 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 18:37:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:37:02,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:02,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:37:02,096 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:02,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:37:02,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:37:02,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:37:02,123 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 18:37:11,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:11,567 INFO L93 Difference]: Finished difference Result 1514 states and 2777 transitions. [2018-10-24 18:37:11,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:37:11,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-10-24 18:37:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:11,602 INFO L225 Difference]: With dead ends: 1514 [2018-10-24 18:37:11,602 INFO L226 Difference]: Without dead ends: 1070 [2018-10-24 18:37:11,615 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:37:11,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-10-24 18:37:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2018-10-24 18:37:11,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-24 18:37:11,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1675 transitions. [2018-10-24 18:37:11,748 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1675 transitions. Word has length 22 [2018-10-24 18:37:11,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:11,749 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1675 transitions. [2018-10-24 18:37:11,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:37:11,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1675 transitions. [2018-10-24 18:37:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-10-24 18:37:11,758 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:11,758 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:37:11,758 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:11,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:11,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1633554799, now seen corresponding path program 1 times [2018-10-24 18:37:11,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:11,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:11,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:11,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:11,761 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:37:11,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:11,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:37:11,983 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:11,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:37:11,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:37:11,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:37:11,986 INFO L87 Difference]: Start difference. First operand 1068 states and 1675 transitions. Second operand 4 states. [2018-10-24 18:37:19,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:19,392 INFO L93 Difference]: Finished difference Result 3986 states and 6446 transitions. [2018-10-24 18:37:19,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:37:19,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-10-24 18:37:19,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:19,414 INFO L225 Difference]: With dead ends: 3986 [2018-10-24 18:37:19,414 INFO L226 Difference]: Without dead ends: 2924 [2018-10-24 18:37:19,424 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:37:19,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2018-10-24 18:37:19,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2922. [2018-10-24 18:37:19,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-10-24 18:37:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 4197 transitions. [2018-10-24 18:37:19,561 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 4197 transitions. Word has length 92 [2018-10-24 18:37:19,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:19,562 INFO L481 AbstractCegarLoop]: Abstraction has 2922 states and 4197 transitions. [2018-10-24 18:37:19,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:37:19,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 4197 transitions. [2018-10-24 18:37:19,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-10-24 18:37:19,585 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:19,587 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:37:19,588 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:19,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:19,588 INFO L82 PathProgramCache]: Analyzing trace with hash 264602961, now seen corresponding path program 1 times [2018-10-24 18:37:19,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:19,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:19,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:19,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:19,590 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:20,306 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 53 proven. 222 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-24 18:37:20,306 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:37:20,306 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:37:20,307 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-10-24 18:37:20,309 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:37:20,395 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:37:20,396 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:37:21,871 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:37:32,493 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:37:32,495 INFO L272 AbstractInterpreter]: Visited 105 different actions 302 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:37:32,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:32,541 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:37:37,591 INFO L232 lantSequenceWeakener]: Weakened 72 states. On average, predicates are now at 77.84% of their original sizes. [2018-10-24 18:37:37,594 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:39:12,913 INFO L413 sIntCurrentIteration]: We have 278 unified AI predicates [2018-10-24 18:39:12,913 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:39:12,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:39:12,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-10-24 18:39:12,915 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:39:12,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 18:39:12,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 18:39:12,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-10-24 18:39:12,917 INFO L87 Difference]: Start difference. First operand 2922 states and 4197 transitions. Second operand 18 states. Received shutdown request... [2018-10-24 18:40:58,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 18:40:58,201 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:40:58,206 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:40:58,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:40:58 BoogieIcfgContainer [2018-10-24 18:40:58,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:40:58,208 INFO L168 Benchmark]: Toolchain (without parser) took 247150.30 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -523.9 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,209 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:40:58,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1317.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 392.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -870.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,211 INFO L168 Benchmark]: Boogie Preprocessor took 280.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,212 INFO L168 Benchmark]: RCFGBuilder took 8394.50 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 304.3 MB). Peak memory consumption was 304.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,213 INFO L168 Benchmark]: TraceAbstraction took 236760.16 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -80.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,220 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1317.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 392.27 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -870.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 280.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8394.50 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 304.3 MB). Peak memory consumption was 304.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236760.16 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -80.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 52). Cancelled while BasicCegarLoop was constructing difference of abstraction (2922states) and FLOYD_HOARE automaton (currently 19 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (1092 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 236.6s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 122.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 622 SDtfs, 4499 SDslu, 352 SDs, 0 SdLazy, 4991 SolverSat, 1315 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 299 GetRequests, 155 SyntacticMatches, 114 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 99.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2922occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9948389114795121 AbsIntWeakeningRatio, 0.11510791366906475 AbsIntAvgWeakeningVarsNumRemoved, 105.40287769784173 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 393 NumberOfCodeBlocks, 393 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 319576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 79/301 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown