java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label28_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 17:54:53,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 17:54:53,865 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 17:54:53,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 17:54:53,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 17:54:53,880 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 17:54:53,881 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 17:54:53,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 17:54:53,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 17:54:53,886 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 17:54:53,887 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 17:54:53,887 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 17:54:53,888 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 17:54:53,889 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 17:54:53,890 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 17:54:53,891 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 17:54:53,892 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 17:54:53,895 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 17:54:53,897 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 17:54:53,899 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 17:54:53,903 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 17:54:53,904 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 17:54:53,909 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 17:54:53,910 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 17:54:53,910 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 17:54:53,911 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 17:54:53,912 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 17:54:53,913 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 17:54:53,914 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 17:54:53,915 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 17:54:53,915 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 17:54:53,915 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 17:54:53,916 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 17:54:53,916 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 17:54:53,918 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 17:54:53,919 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 17:54:53,919 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 17:54:53,939 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 17:54:53,940 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 17:54:53,940 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 17:54:53,941 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 17:54:53,941 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 17:54:53,941 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 17:54:53,941 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 17:54:53,942 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 17:54:53,942 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 17:54:53,942 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 17:54:53,942 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 17:54:53,942 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 17:54:53,942 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 17:54:53,943 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 17:54:53,943 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 17:54:53,944 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 17:54:53,944 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 17:54:53,944 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 17:54:53,944 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 17:54:53,944 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 17:54:53,945 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 17:54:53,945 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 17:54:53,945 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 17:54:53,945 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 17:54:53,945 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 17:54:53,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 17:54:53,946 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 17:54:53,946 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 17:54:53,946 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 17:54:53,946 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 17:54:53,946 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 17:54:53,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 17:54:53,947 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 17:54:53,947 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 17:54:53,947 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 17:54:53,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 17:54:54,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 17:54:54,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 17:54:54,018 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 17:54:54,018 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 17:54:54,019 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label28_false-unreach-call.c [2018-11-07 17:54:54,091 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0eaa84/7a3035bca8cb4e96b0322e6162746bb5/FLAG4189046a1 [2018-11-07 17:54:54,904 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 17:54:54,904 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label28_false-unreach-call.c [2018-11-07 17:54:54,945 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0eaa84/7a3035bca8cb4e96b0322e6162746bb5/FLAG4189046a1 [2018-11-07 17:54:54,962 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cb0eaa84/7a3035bca8cb4e96b0322e6162746bb5 [2018-11-07 17:54:54,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 17:54:54,977 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 17:54:54,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 17:54:54,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 17:54:54,982 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 17:54:54,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:54:54" (1/1) ... [2018-11-07 17:54:54,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70cac6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:54, skipping insertion in model container [2018-11-07 17:54:54,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:54:54" (1/1) ... [2018-11-07 17:54:54,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 17:54:55,216 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 17:54:56,847 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 17:54:56,852 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 17:54:57,588 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 17:54:57,626 INFO L193 MainTranslator]: Completed translation [2018-11-07 17:54:57,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57 WrapperNode [2018-11-07 17:54:57,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 17:54:57,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 17:54:57,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 17:54:57,628 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 17:54:57,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (1/1) ... [2018-11-07 17:54:58,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (1/1) ... [2018-11-07 17:54:58,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 17:54:58,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 17:54:58,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 17:54:58,018 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 17:54:58,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (1/1) ... [2018-11-07 17:54:58,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (1/1) ... [2018-11-07 17:54:58,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (1/1) ... [2018-11-07 17:54:58,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (1/1) ... [2018-11-07 17:54:58,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (1/1) ... [2018-11-07 17:54:58,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (1/1) ... [2018-11-07 17:54:58,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (1/1) ... [2018-11-07 17:54:58,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 17:54:58,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 17:54:58,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 17:54:58,308 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 17:54:58,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (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 [2018-11-07 17:54:58,376 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 17:54:58,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 17:54:58,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 17:54:58,376 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 17:54:58,377 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 17:54:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 17:54:58,377 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 17:54:58,377 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 17:54:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 17:54:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 17:54:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 17:54:58,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 17:54:58,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 17:54:58,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 17:54:58,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 17:55:09,086 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 17:55:09,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:55:09 BoogieIcfgContainer [2018-11-07 17:55:09,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 17:55:09,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 17:55:09,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 17:55:09,094 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 17:55:09,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:54:54" (1/3) ... [2018-11-07 17:55:09,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e29ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:55:09, skipping insertion in model container [2018-11-07 17:55:09,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:54:57" (2/3) ... [2018-11-07 17:55:09,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e29ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:55:09, skipping insertion in model container [2018-11-07 17:55:09,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:55:09" (3/3) ... [2018-11-07 17:55:09,098 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label28_false-unreach-call.c [2018-11-07 17:55:09,109 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 17:55:09,118 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 17:55:09,134 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 17:55:09,195 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 17:55:09,195 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 17:55:09,196 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 17:55:09,196 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 17:55:09,196 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 17:55:09,196 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 17:55:09,196 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 17:55:09,196 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 17:55:09,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 17:55:09,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-07 17:55:09,260 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:55:09,261 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] [2018-11-07 17:55:09,263 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:55:09,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:55:09,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1619247140, now seen corresponding path program 1 times [2018-11-07 17:55:09,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:55:09,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:55:09,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:55:09,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:55:09,323 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:55:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:55:09,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:55:09,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:55:09,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 17:55:09,695 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:55:09,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 17:55:09,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 17:55:09,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 17:55:09,722 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 17:55:19,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:55:19,163 INFO L93 Difference]: Finished difference Result 3104 states and 5729 transitions. [2018-11-07 17:55:19,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 17:55:19,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-07 17:55:19,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:55:19,199 INFO L225 Difference]: With dead ends: 3104 [2018-11-07 17:55:19,199 INFO L226 Difference]: Without dead ends: 1982 [2018-11-07 17:55:19,212 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 17:55:19,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2018-11-07 17:55:19,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1965. [2018-11-07 17:55:19,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2018-11-07 17:55:19,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 3515 transitions. [2018-11-07 17:55:19,376 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 3515 transitions. Word has length 22 [2018-11-07 17:55:19,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:55:19,376 INFO L480 AbstractCegarLoop]: Abstraction has 1965 states and 3515 transitions. [2018-11-07 17:55:19,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 17:55:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 3515 transitions. [2018-11-07 17:55:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-07 17:55:19,382 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:55:19,383 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] [2018-11-07 17:55:19,383 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:55:19,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:55:19,384 INFO L82 PathProgramCache]: Analyzing trace with hash 163198400, now seen corresponding path program 1 times [2018-11-07 17:55:19,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:55:19,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:55:19,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:55:19,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:55:19,385 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:55:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:55:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:55:19,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:55:19,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 17:55:19,779 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:55:19,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 17:55:19,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 17:55:19,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 17:55:19,782 INFO L87 Difference]: Start difference. First operand 1965 states and 3515 transitions. Second operand 5 states. [2018-11-07 17:55:31,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:55:31,226 INFO L93 Difference]: Finished difference Result 5645 states and 10294 transitions. [2018-11-07 17:55:31,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 17:55:31,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2018-11-07 17:55:31,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:55:31,260 INFO L225 Difference]: With dead ends: 5645 [2018-11-07 17:55:31,260 INFO L226 Difference]: Without dead ends: 3686 [2018-11-07 17:55:31,267 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 17:55:31,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2018-11-07 17:55:31,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3654. [2018-11-07 17:55:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3654 states. [2018-11-07 17:55:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5960 transitions. [2018-11-07 17:55:31,401 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5960 transitions. Word has length 92 [2018-11-07 17:55:31,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:55:31,402 INFO L480 AbstractCegarLoop]: Abstraction has 3654 states and 5960 transitions. [2018-11-07 17:55:31,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 17:55:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5960 transitions. [2018-11-07 17:55:31,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-07 17:55:31,408 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:55:31,408 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, 1, 1] [2018-11-07 17:55:31,410 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:55:31,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:55:31,411 INFO L82 PathProgramCache]: Analyzing trace with hash -997681060, now seen corresponding path program 1 times [2018-11-07 17:55:31,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:55:31,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:55:31,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:55:31,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:55:31,413 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:55:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:55:31,711 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 17:55:31,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 17:55:31,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 17:55:31,712 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:55:31,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 17:55:31,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 17:55:31,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 17:55:31,713 INFO L87 Difference]: Start difference. First operand 3654 states and 5960 transitions. Second operand 5 states. [2018-11-07 17:55:41,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:55:41,391 INFO L93 Difference]: Finished difference Result 10919 states and 18331 transitions. [2018-11-07 17:55:41,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 17:55:41,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2018-11-07 17:55:41,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:55:41,435 INFO L225 Difference]: With dead ends: 10919 [2018-11-07 17:55:41,436 INFO L226 Difference]: Without dead ends: 7271 [2018-11-07 17:55:41,450 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 17:55:41,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2018-11-07 17:55:41,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 7118. [2018-11-07 17:55:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7118 states. [2018-11-07 17:55:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7118 states to 7118 states and 10839 transitions. [2018-11-07 17:55:41,662 INFO L78 Accepts]: Start accepts. Automaton has 7118 states and 10839 transitions. Word has length 94 [2018-11-07 17:55:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:55:41,663 INFO L480 AbstractCegarLoop]: Abstraction has 7118 states and 10839 transitions. [2018-11-07 17:55:41,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 17:55:41,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7118 states and 10839 transitions. [2018-11-07 17:55:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-07 17:55:41,672 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:55:41,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 17:55:41,675 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:55:41,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:55:41,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1870478224, now seen corresponding path program 1 times [2018-11-07 17:55:41,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:55:41,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:55:41,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:55:41,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:55:41,678 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:55:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:55:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 17:55:41,915 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:55:41,915 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:55:41,916 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 117 with the following transitions: [2018-11-07 17:55:41,919 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2703], [2705], [2708], [2716], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 17:55:41,970 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:55:41,970 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:55:42,687 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 17:55:42,688 INFO L272 AbstractInterpreter]: Visited 98 different actions 98 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 17:55:42,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:55:42,746 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 17:55:43,281 INFO L227 lantSequenceWeakener]: Weakened 100 states. On average, predicates are now at 71.22% of their original sizes. [2018-11-07 17:55:43,281 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 17:55:44,020 INFO L415 sIntCurrentIteration]: We unified 115 AI predicates to 115 [2018-11-07 17:55:44,020 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 17:55:44,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 17:55:44,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-07 17:55:44,022 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:55:44,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 17:55:44,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 17:55:44,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 17:55:44,023 INFO L87 Difference]: Start difference. First operand 7118 states and 10839 transitions. Second operand 10 states. [2018-11-07 17:55:58,258 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 17:57:05,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 17:57:05,019 INFO L93 Difference]: Finished difference Result 15039 states and 22689 transitions. [2018-11-07 17:57:05,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 17:57:05,019 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 116 [2018-11-07 17:57:05,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 17:57:05,051 INFO L225 Difference]: With dead ends: 15039 [2018-11-07 17:57:05,051 INFO L226 Difference]: Without dead ends: 7927 [2018-11-07 17:57:05,074 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 119 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-07 17:57:05,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7927 states. [2018-11-07 17:57:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7927 to 7922. [2018-11-07 17:57:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7922 states. [2018-11-07 17:57:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7922 states to 7922 states and 11652 transitions. [2018-11-07 17:57:05,254 INFO L78 Accepts]: Start accepts. Automaton has 7922 states and 11652 transitions. Word has length 116 [2018-11-07 17:57:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 17:57:05,255 INFO L480 AbstractCegarLoop]: Abstraction has 7922 states and 11652 transitions. [2018-11-07 17:57:05,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 17:57:05,255 INFO L276 IsEmpty]: Start isEmpty. Operand 7922 states and 11652 transitions. [2018-11-07 17:57:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-07 17:57:05,259 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 17:57:05,259 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 17:57:05,260 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 17:57:05,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:57:05,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1123817596, now seen corresponding path program 1 times [2018-11-07 17:57:05,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 17:57:05,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:57:05,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 17:57:05,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 17:57:05,262 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 17:57:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 17:57:05,719 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-11-07 17:57:05,720 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 17:57:05,720 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 17:57:05,720 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-11-07 17:57:05,721 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2703], [2705], [2708], [2716], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3237], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 17:57:05,726 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 17:57:05,726 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 17:57:05,931 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 17:57:06,249 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 17:57:06,249 INFO L272 AbstractInterpreter]: Visited 109 different actions 428 times. Merged at 7 different actions 25 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 26 variables. [2018-11-07 17:57:06,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 17:57:06,255 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 17:57:06,749 INFO L227 lantSequenceWeakener]: Weakened 63 states. On average, predicates are now at 71.63% of their original sizes. [2018-11-07 17:57:06,749 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 17:57:08,788 INFO L415 sIntCurrentIteration]: We unified 216 AI predicates to 216 [2018-11-07 17:57:08,788 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 17:57:08,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 17:57:08,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [5] total 21 [2018-11-07 17:57:08,789 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 17:57:08,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 17:57:08,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 17:57:08,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-11-07 17:57:08,790 INFO L87 Difference]: Start difference. First operand 7922 states and 11652 transitions. Second operand 18 states. Received shutdown request... [2018-11-07 17:58:23,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-07 17:58:23,393 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 17:58:23,400 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 17:58:23,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:58:23 BoogieIcfgContainer [2018-11-07 17:58:23,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 17:58:23,402 INFO L168 Benchmark]: Toolchain (without parser) took 208426.57 ms. Allocated memory was 1.5 GB in the beginning and 6.7 GB in the end (delta: 5.2 GB). Free memory was 1.4 GB in the beginning and 4.7 GB in the end (delta: -3.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 17:58:23,404 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 17:58:23,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2649.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-07 17:58:23,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 389.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2018-11-07 17:58:23,406 INFO L168 Benchmark]: Boogie Preprocessor took 290.25 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: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2018-11-07 17:58:23,407 INFO L168 Benchmark]: RCFGBuilder took 10781.24 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 165.2 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.3 MB). Peak memory consumption was 669.0 MB. Max. memory is 7.1 GB. [2018-11-07 17:58:23,408 INFO L168 Benchmark]: TraceAbstraction took 194310.85 ms. Allocated memory was 2.5 GB in the beginning and 6.7 GB in the end (delta: 4.3 GB). Free memory was 2.2 GB in the beginning and 4.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 17:58:23,414 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2649.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 389.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 290.25 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: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10781.24 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 165.2 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.3 MB). Peak memory consumption was 669.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194310.85 ms. Allocated memory was 2.5 GB in the beginning and 6.7 GB in the end (delta: 4.3 GB). Free memory was 2.2 GB in the beginning and 4.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 57]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 57). Cancelled while BasicCegarLoop was constructing difference of abstraction (7922states) and FLOYD_HOARE automaton (currently 24 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (14985 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 194.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 186.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3632 SDtfs, 15221 SDslu, 2364 SDs, 0 SdLazy, 27507 SolverSat, 4231 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 90.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 369 GetRequests, 263 SyntacticMatches, 55 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7922occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9969213745228457 AbsIntWeakeningRatio, 0.14501510574018128 AbsIntAvgWeakeningVarsNumRemoved, 7.410876132930514 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 207 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 541 NumberOfCodeBlocks, 541 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 536 ConstructedInterpolants, 0 QuantifiedInterpolants, 224851 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 136/169 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown