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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label08_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 02:42:52,961 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 02:42:52,965 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 02:42:52,978 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 02:42:52,978 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 02:42:52,979 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 02:42:52,980 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 02:42:52,982 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 02:42:52,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 02:42:52,984 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 02:42:52,985 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 02:42:52,985 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 02:42:52,986 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 02:42:52,987 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 02:42:52,989 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 02:42:52,989 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 02:42:52,990 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 02:42:52,992 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 02:42:52,994 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 02:42:52,996 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 02:42:52,997 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 02:42:52,998 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 02:42:53,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 02:42:53,001 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 02:42:53,001 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 02:42:53,002 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 02:42:53,003 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 02:42:53,004 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 02:42:53,005 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 02:42:53,006 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 02:42:53,006 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 02:42:53,007 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 02:42:53,007 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 02:42:53,007 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 02:42:53,008 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 02:42:53,009 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 02:42:53,010 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 02:42:53,029 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 02:42:53,030 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 02:42:53,030 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 02:42:53,031 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 02:42:53,031 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 02:42:53,031 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 02:42:53,031 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 02:42:53,032 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 02:42:53,032 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 02:42:53,032 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 02:42:53,032 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 02:42:53,032 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 02:42:53,033 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 02:42:53,033 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 02:42:53,033 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 02:42:53,035 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 02:42:53,035 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 02:42:53,035 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 02:42:53,035 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 02:42:53,036 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 02:42:53,036 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 02:42:53,036 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 02:42:53,036 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 02:42:53,036 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 02:42:53,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:42:53,038 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 02:42:53,038 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 02:42:53,038 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 02:42:53,038 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 02:42:53,039 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 02:42:53,039 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 02:42:53,039 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 02:42:53,039 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 02:42:53,040 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 02:42:53,093 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 02:42:53,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 02:42:53,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 02:42:53,115 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 02:42:53,115 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 02:42:53,116 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label08_true-unreach-call.c [2018-11-07 02:42:53,173 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a763348a/d2c71363a5fe473b82b396e098cca2ba/FLAGb50cf5c6b [2018-11-07 02:42:53,704 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 02:42:53,705 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label08_true-unreach-call.c [2018-11-07 02:42:53,720 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a763348a/d2c71363a5fe473b82b396e098cca2ba/FLAGb50cf5c6b [2018-11-07 02:42:53,735 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a763348a/d2c71363a5fe473b82b396e098cca2ba [2018-11-07 02:42:53,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 02:42:53,750 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 02:42:53,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 02:42:53,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 02:42:53,755 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 02:42:53,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:42:53" (1/1) ... [2018-11-07 02:42:53,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c053053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:53, skipping insertion in model container [2018-11-07 02:42:53,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:42:53" (1/1) ... [2018-11-07 02:42:53,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 02:42:53,840 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 02:42:54,306 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:42:54,310 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 02:42:54,451 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:42:54,476 INFO L193 MainTranslator]: Completed translation [2018-11-07 02:42:54,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54 WrapperNode [2018-11-07 02:42:54,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 02:42:54,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 02:42:54,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 02:42:54,478 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 02:42:54,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (1/1) ... [2018-11-07 02:42:54,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (1/1) ... [2018-11-07 02:42:54,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 02:42:54,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 02:42:54,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 02:42:54,637 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 02:42:54,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (1/1) ... [2018-11-07 02:42:54,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (1/1) ... [2018-11-07 02:42:54,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (1/1) ... [2018-11-07 02:42:54,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (1/1) ... [2018-11-07 02:42:54,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (1/1) ... [2018-11-07 02:42:54,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (1/1) ... [2018-11-07 02:42:54,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (1/1) ... [2018-11-07 02:42:54,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 02:42:54,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 02:42:54,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 02:42:54,741 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 02:42:54,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (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 02:42:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 02:42:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 02:42:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 02:42:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 02:42:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 02:42:54,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 02:42:54,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 02:42:54,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 02:42:54,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 02:42:57,923 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 02:42:57,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:42:57 BoogieIcfgContainer [2018-11-07 02:42:57,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 02:42:57,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 02:42:57,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 02:42:57,932 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 02:42:57,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:42:53" (1/3) ... [2018-11-07 02:42:57,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f881fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:42:57, skipping insertion in model container [2018-11-07 02:42:57,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:42:54" (2/3) ... [2018-11-07 02:42:57,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f881fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:42:57, skipping insertion in model container [2018-11-07 02:42:57,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:42:57" (3/3) ... [2018-11-07 02:42:57,937 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label08_true-unreach-call.c [2018-11-07 02:42:57,948 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 02:42:57,964 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 02:42:57,985 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 02:42:58,017 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 02:42:58,017 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 02:42:58,017 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 02:42:58,018 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 02:42:58,018 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 02:42:58,018 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 02:42:58,018 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 02:42:58,019 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 02:42:58,045 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-07 02:42:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-07 02:42:58,054 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:42:58,055 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, 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 02:42:58,057 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:42:58,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:42:58,064 INFO L82 PathProgramCache]: Analyzing trace with hash -247440047, now seen corresponding path program 1 times [2018-11-07 02:42:58,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:42:58,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:42:58,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:42:58,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:42:58,114 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:42:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:42:58,493 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 02:42:58,544 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 02:42:58,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:42:58,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 02:42:58,548 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:42:58,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 02:42:58,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 02:42:58,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 02:42:58,572 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-07 02:42:59,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:42:59,983 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-07 02:42:59,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 02:42:59,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-07 02:42:59,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:43:00,006 INFO L225 Difference]: With dead ends: 574 [2018-11-07 02:43:00,006 INFO L226 Difference]: Without dead ends: 356 [2018-11-07 02:43:00,013 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 02:43:00,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-07 02:43:00,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-07 02:43:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-07 02:43:00,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 612 transitions. [2018-11-07 02:43:00,089 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 612 transitions. Word has length 47 [2018-11-07 02:43:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:43:00,089 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 612 transitions. [2018-11-07 02:43:00,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 02:43:00,090 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 612 transitions. [2018-11-07 02:43:00,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-07 02:43:00,097 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:43:00,097 INFO L375 BasicCegarLoop]: trace histogram [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, 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 02:43:00,098 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:43:00,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:00,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1218234717, now seen corresponding path program 1 times [2018-11-07 02:43:00,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:43:00,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:00,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:43:00,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:00,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:43:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:43:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 02:43:00,439 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:43:00,439 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:43:00,440 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-11-07 02:43:00,442 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [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], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 02:43:00,516 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:43:00,516 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:43:02,726 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:43:12,258 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:43:12,260 INFO L272 AbstractInterpreter]: Visited 78 different actions 438 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 02:43:12,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:12,315 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:43:14,283 INFO L227 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 77.6% of their original sizes. [2018-11-07 02:43:14,284 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:43:18,806 INFO L415 sIntCurrentIteration]: We unified 117 AI predicates to 117 [2018-11-07 02:43:18,807 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:43:18,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:43:18,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [4] total 17 [2018-11-07 02:43:18,808 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:43:18,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 02:43:18,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 02:43:18,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-11-07 02:43:18,811 INFO L87 Difference]: Start difference. First operand 356 states and 612 transitions. Second operand 15 states. [2018-11-07 02:44:52,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:44:52,082 INFO L93 Difference]: Finished difference Result 1376 states and 2493 transitions. [2018-11-07 02:44:52,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 02:44:52,082 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 118 [2018-11-07 02:44:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:44:52,091 INFO L225 Difference]: With dead ends: 1376 [2018-11-07 02:44:52,092 INFO L226 Difference]: Without dead ends: 1026 [2018-11-07 02:44:52,096 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-11-07 02:44:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2018-11-07 02:44:52,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1020. [2018-11-07 02:44:52,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1020 states. [2018-11-07 02:44:52,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1328 transitions. [2018-11-07 02:44:52,254 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1328 transitions. Word has length 118 [2018-11-07 02:44:52,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:44:52,255 INFO L480 AbstractCegarLoop]: Abstraction has 1020 states and 1328 transitions. [2018-11-07 02:44:52,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 02:44:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1328 transitions. [2018-11-07 02:44:52,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-11-07 02:44:52,261 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:44:52,262 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-07 02:44:52,262 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:44:52,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:44:52,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1202333722, now seen corresponding path program 1 times [2018-11-07 02:44:52,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:44:52,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:44:52,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:44:52,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:44:52,264 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:44:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:44:52,597 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-11-07 02:44:52,598 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:44:52,598 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:44:52,598 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 195 with the following transitions: [2018-11-07 02:44:52,599 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [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], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 02:44:52,603 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:44:52,604 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:44:53,602 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:44:58,342 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:44:58,343 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 02:44:58,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:44:58,351 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:45:00,132 INFO L227 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 77.6% of their original sizes. [2018-11-07 02:45:00,132 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:45:05,417 INFO L415 sIntCurrentIteration]: We unified 193 AI predicates to 193 [2018-11-07 02:45:05,417 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:45:05,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:45:05,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [4] total 17 [2018-11-07 02:45:05,418 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:45:05,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 02:45:05,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 02:45:05,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-11-07 02:45:05,419 INFO L87 Difference]: Start difference. First operand 1020 states and 1328 transitions. Second operand 15 states. [2018-11-07 02:46:51,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:46:51,126 INFO L93 Difference]: Finished difference Result 2417 states and 3504 transitions. [2018-11-07 02:46:51,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 02:46:51,127 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 194 [2018-11-07 02:46:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:46:51,137 INFO L225 Difference]: With dead ends: 2417 [2018-11-07 02:46:51,137 INFO L226 Difference]: Without dead ends: 1776 [2018-11-07 02:46:51,140 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 200 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-11-07 02:46:51,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2018-11-07 02:46:51,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1765. [2018-11-07 02:46:51,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1765 states. [2018-11-07 02:46:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2135 transitions. [2018-11-07 02:46:51,356 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2135 transitions. Word has length 194 [2018-11-07 02:46:51,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:46:51,357 INFO L480 AbstractCegarLoop]: Abstraction has 1765 states and 2135 transitions. [2018-11-07 02:46:51,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 02:46:51,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2135 transitions. [2018-11-07 02:46:51,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-11-07 02:46:51,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:46:51,362 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-07 02:46:51,362 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:46:51,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:46:51,363 INFO L82 PathProgramCache]: Analyzing trace with hash 2129360251, now seen corresponding path program 1 times [2018-11-07 02:46:51,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:46:51,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:46:51,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:46:51,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:46:51,364 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:46:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:46:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:46:51,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:46:51,843 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:46:51,844 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-11-07 02:46:51,844 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [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], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 02:46:51,848 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:46:51,849 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:46:53,319 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 02:47:00,194 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 02:47:00,195 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 02:47:00,196 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 02:47:00,196 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:47:00,196 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 02:47:00,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:47:00,207 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 02:47:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:47:00,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 02:47:00,332 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 02:47:00,533 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 02:47:00,533 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 02:47:00,538 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 02:47:00,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:47:00 BoogieIcfgContainer [2018-11-07 02:47:00,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 02:47:00,540 INFO L168 Benchmark]: Toolchain (without parser) took 246790.85 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-07 02:47:00,541 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-07 02:47:00,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:00,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.4 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:00,544 INFO L168 Benchmark]: Boogie Preprocessor took 103.96 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:00,544 INFO L168 Benchmark]: RCFGBuilder took 3186.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 106.6 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:00,545 INFO L168 Benchmark]: TraceAbstraction took 242610.99 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -628.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-07 02:47:00,552 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 725.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 158.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.4 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.96 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3186.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 106.6 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242610.99 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -628.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while BasicCegarLoop was analyzing trace of length 202 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 242.5s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 200.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 504 SDtfs, 2743 SDslu, 429 SDs, 0 SdLazy, 3004 SolverSat, 981 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 328 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1765occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 25.9s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9932152875175316 AbsIntWeakeningRatio, 0.14838709677419354 AbsIntAvgWeakeningVarsNumRemoved, 24.625806451612902 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 356 ConstructedInterpolants, 0 QuantifiedInterpolants, 175917 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/191 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown