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/Problem18_label18_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:11:38,906 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:11:38,912 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:11:38,929 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:11:38,930 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:11:38,931 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:11:38,932 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:11:38,934 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:11:38,936 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:11:38,937 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:11:38,938 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:11:38,938 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:11:38,939 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:11:38,940 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:11:38,941 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:11:38,943 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:11:38,945 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:11:38,947 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:11:38,949 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:11:38,950 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:11:38,952 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:11:38,953 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:11:38,955 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 21:11:38,962 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 21:11:38,962 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 21:11:38,963 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 21:11:38,964 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 21:11:38,964 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 21:11:38,988 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:11:38,988 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:11:38,991 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:11:38,991 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:11:38,991 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:11:38,991 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:11:38,991 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:11:38,992 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:11:38,992 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:11:38,992 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:11:38,992 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:11:38,993 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:11:38,993 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:11:38,993 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:11:38,997 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:11:38,998 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:11:38,998 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:11:38,998 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:11:38,998 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:11:38,998 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:11:38,998 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:11:39,000 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:11:39,000 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:11:39,000 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:11:39,001 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:11:39,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:11:39,001 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:11:39,001 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:11:39,001 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:11:39,001 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:11:39,002 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:11:39,002 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:11:39,003 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:11:39,003 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:11:39,003 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:11:39,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:11:39,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:11:39,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:11:39,068 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:11:39,069 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:11:39,070 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label18_true-unreach-call.c [2018-11-07 21:11:39,129 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8193e74f4/d2e8f5d360684b759625ddd590222268/FLAG48413a87d [2018-11-07 21:11:39,844 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:11:39,845 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label18_true-unreach-call.c [2018-11-07 21:11:39,875 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8193e74f4/d2e8f5d360684b759625ddd590222268/FLAG48413a87d [2018-11-07 21:11:39,896 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8193e74f4/d2e8f5d360684b759625ddd590222268 [2018-11-07 21:11:39,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:11:39,911 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:11:39,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:11:39,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:11:39,919 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:11:39,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:11:39" (1/1) ... [2018-11-07 21:11:39,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785562e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:39, skipping insertion in model container [2018-11-07 21:11:39,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:11:39" (1/1) ... [2018-11-07 21:11:39,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:11:40,077 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:11:41,135 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:11:41,140 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:11:41,592 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:11:41,624 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:11:41,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41 WrapperNode [2018-11-07 21:11:41,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:11:41,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:11:41,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:11:41,626 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:11:41,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (1/1) ... [2018-11-07 21:11:41,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (1/1) ... [2018-11-07 21:11:41,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:11:41,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:11:41,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:11:41,928 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:11:41,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (1/1) ... [2018-11-07 21:11:41,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (1/1) ... [2018-11-07 21:11:41,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (1/1) ... [2018-11-07 21:11:41,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (1/1) ... [2018-11-07 21:11:42,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (1/1) ... [2018-11-07 21:11:42,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (1/1) ... [2018-11-07 21:11:42,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (1/1) ... [2018-11-07 21:11:42,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:11:42,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:11:42,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:11:42,130 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:11:42,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (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 21:11:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 21:11:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:11:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:11:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 21:11:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 21:11:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 21:11:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 21:11:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 21:11:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 21:11:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:11:42,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:11:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:11:42,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:11:49,986 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:11:49,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:11:49 BoogieIcfgContainer [2018-11-07 21:11:49,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:11:49,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:11:49,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:11:49,992 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:11:49,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:11:39" (1/3) ... [2018-11-07 21:11:49,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186fe823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:11:49, skipping insertion in model container [2018-11-07 21:11:49,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:11:41" (2/3) ... [2018-11-07 21:11:49,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186fe823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:11:49, skipping insertion in model container [2018-11-07 21:11:49,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:11:49" (3/3) ... [2018-11-07 21:11:49,996 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label18_true-unreach-call.c [2018-11-07 21:11:50,005 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:11:50,014 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:11:50,029 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:11:50,084 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:11:50,084 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:11:50,084 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:11:50,085 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:11:50,085 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:11:50,085 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:11:50,085 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:11:50,085 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:11:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 21:11:50,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-07 21:11:50,144 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:11:50,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 21:11:50,147 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:11:50,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:11:50,152 INFO L82 PathProgramCache]: Analyzing trace with hash -502294996, now seen corresponding path program 1 times [2018-11-07 21:11:50,155 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:11:50,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:50,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:11:50,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:50,201 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:11:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:11:50,680 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:11:50,797 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 21:11:50,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:11:50,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 21:11:50,800 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:11:50,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 21:11:50,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 21:11:50,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 21:11:50,827 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-07 21:11:57,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:11:57,286 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-07 21:11:57,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 21:11:57,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-11-07 21:11:57,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:11:57,322 INFO L225 Difference]: With dead ends: 2251 [2018-11-07 21:11:57,322 INFO L226 Difference]: Without dead ends: 1474 [2018-11-07 21:11:57,335 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 21:11:57,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-07 21:11:57,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-07 21:11:57,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 21:11:57,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-11-07 21:11:57,506 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 64 [2018-11-07 21:11:57,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:11:57,507 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-11-07 21:11:57,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 21:11:57,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-11-07 21:11:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-11-07 21:11:57,522 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:11:57,522 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, 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, 1, 1] [2018-11-07 21:11:57,522 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:11:57,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:11:57,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1983682478, now seen corresponding path program 1 times [2018-11-07 21:11:57,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:11:57,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:57,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:11:57,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:57,527 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:11:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:11:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:11:57,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:11:57,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:11:57,910 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:11:57,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:11:57,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:11:57,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:11:57,913 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-11-07 21:12:06,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:12:06,162 INFO L93 Difference]: Finished difference Result 4416 states and 8482 transitions. [2018-11-07 21:12:06,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:12:06,164 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-11-07 21:12:06,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:12:06,186 INFO L225 Difference]: With dead ends: 4416 [2018-11-07 21:12:06,187 INFO L226 Difference]: Without dead ends: 2948 [2018-11-07 21:12:06,192 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:12:06,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2018-11-07 21:12:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2922. [2018-11-07 21:12:06,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-11-07 21:12:06,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 5419 transitions. [2018-11-07 21:12:06,282 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 5419 transitions. Word has length 154 [2018-11-07 21:12:06,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:12:06,283 INFO L480 AbstractCegarLoop]: Abstraction has 2922 states and 5419 transitions. [2018-11-07 21:12:06,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:12:06,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 5419 transitions. [2018-11-07 21:12:06,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-07 21:12:06,290 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:12:06,290 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, 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, 1, 1, 1] [2018-11-07 21:12:06,290 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:12:06,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:12:06,291 INFO L82 PathProgramCache]: Analyzing trace with hash 119738927, now seen corresponding path program 1 times [2018-11-07 21:12:06,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:12:06,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:12:06,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:12:06,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:12:06,292 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:12:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:12:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:12:06,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:12:06,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:12:06,502 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:12:06,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:12:06,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:12:06,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:12:06,503 INFO L87 Difference]: Start difference. First operand 2922 states and 5419 transitions. Second operand 6 states. [2018-11-07 21:12:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:12:17,229 INFO L93 Difference]: Finished difference Result 11793 states and 22898 transitions. [2018-11-07 21:12:17,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 21:12:17,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-11-07 21:12:17,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:12:17,310 INFO L225 Difference]: With dead ends: 11793 [2018-11-07 21:12:17,311 INFO L226 Difference]: Without dead ends: 8877 [2018-11-07 21:12:17,342 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 21:12:17,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2018-11-07 21:12:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 8802. [2018-11-07 21:12:17,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8802 states. [2018-11-07 21:12:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8802 states to 8802 states and 14072 transitions. [2018-11-07 21:12:17,622 INFO L78 Accepts]: Start accepts. Automaton has 8802 states and 14072 transitions. Word has length 155 [2018-11-07 21:12:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:12:17,622 INFO L480 AbstractCegarLoop]: Abstraction has 8802 states and 14072 transitions. [2018-11-07 21:12:17,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:12:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 8802 states and 14072 transitions. [2018-11-07 21:12:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-07 21:12:17,632 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:12:17,637 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, 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, 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 21:12:17,637 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:12:17,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:12:17,638 INFO L82 PathProgramCache]: Analyzing trace with hash -720272287, now seen corresponding path program 1 times [2018-11-07 21:12:17,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:12:17,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:12:17,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:12:17,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:12:17,639 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:12:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:12:17,904 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:12:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 114 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:12:18,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:12:18,126 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:12:18,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-07 21:12:18,129 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2035], [2037], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:12:18,189 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:12:18,190 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:12:18,729 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:12:18,733 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 21:12:18,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:12:18,781 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:12:19,245 INFO L227 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 78.23% of their original sizes. [2018-11-07 21:12:19,245 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:12:19,593 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-11-07 21:12:19,593 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:12:19,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:12:19,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-11-07 21:12:19,597 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:12:19,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 21:12:19,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 21:12:19,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 21:12:19,599 INFO L87 Difference]: Start difference. First operand 8802 states and 14072 transitions. Second operand 7 states. [2018-11-07 21:12:28,422 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:12:55,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:12:55,634 INFO L93 Difference]: Finished difference Result 18303 states and 29044 transitions. [2018-11-07 21:12:55,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:12:55,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2018-11-07 21:12:55,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:12:55,685 INFO L225 Difference]: With dead ends: 18303 [2018-11-07 21:12:55,685 INFO L226 Difference]: Without dead ends: 9507 [2018-11-07 21:12:55,713 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:12:55,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9507 states. [2018-11-07 21:12:55,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9507 to 9505. [2018-11-07 21:12:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9505 states. [2018-11-07 21:12:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9505 states to 9505 states and 14784 transitions. [2018-11-07 21:12:55,953 INFO L78 Accepts]: Start accepts. Automaton has 9505 states and 14784 transitions. Word has length 225 [2018-11-07 21:12:55,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:12:55,954 INFO L480 AbstractCegarLoop]: Abstraction has 9505 states and 14784 transitions. [2018-11-07 21:12:55,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 21:12:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 9505 states and 14784 transitions. [2018-11-07 21:12:55,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-11-07 21:12:55,971 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:12:55,971 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 21:12:55,972 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:12:55,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:12:55,972 INFO L82 PathProgramCache]: Analyzing trace with hash -572310658, now seen corresponding path program 1 times [2018-11-07 21:12:55,972 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:12:55,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:12:55,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:12:55,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:12:55,976 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:12:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:12:56,553 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 21:12:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 230 proven. 167 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:12:57,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:12:57,287 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:12:57,287 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 413 with the following transitions: [2018-11-07 21:12:57,287 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2035], [2037], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:12:57,297 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:12:57,297 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:12:58,002 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:12:58,002 INFO L272 AbstractInterpreter]: Visited 196 different actions 388 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:12:58,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:12:58,015 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:12:59,606 INFO L227 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 77.62% of their original sizes. [2018-11-07 21:12:59,606 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:13:00,306 INFO L415 sIntCurrentIteration]: We unified 411 AI predicates to 411 [2018-11-07 21:13:00,307 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:13:00,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:13:00,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [11] total 25 [2018-11-07 21:13:00,307 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:13:00,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 21:13:00,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 21:13:00,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-11-07 21:13:00,309 INFO L87 Difference]: Start difference. First operand 9505 states and 14784 transitions. Second operand 16 states. [2018-11-07 21:13:21,527 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:13:59,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:13:59,039 INFO L93 Difference]: Finished difference Result 21053 states and 32323 transitions. [2018-11-07 21:13:59,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-07 21:13:59,039 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 412 [2018-11-07 21:13:59,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:13:59,084 INFO L225 Difference]: With dead ends: 21053 [2018-11-07 21:13:59,084 INFO L226 Difference]: Without dead ends: 12257 [2018-11-07 21:13:59,114 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 422 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2018-11-07 21:13:59,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12257 states. [2018-11-07 21:13:59,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12257 to 12002. [2018-11-07 21:13:59,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12002 states. [2018-11-07 21:13:59,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12002 states to 12002 states and 17324 transitions. [2018-11-07 21:13:59,359 INFO L78 Accepts]: Start accepts. Automaton has 12002 states and 17324 transitions. Word has length 412 [2018-11-07 21:13:59,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:13:59,359 INFO L480 AbstractCegarLoop]: Abstraction has 12002 states and 17324 transitions. [2018-11-07 21:13:59,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 21:13:59,360 INFO L276 IsEmpty]: Start isEmpty. Operand 12002 states and 17324 transitions. [2018-11-07 21:13:59,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2018-11-07 21:13:59,378 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:13:59,379 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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 21:13:59,379 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:13:59,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:13:59,380 INFO L82 PathProgramCache]: Analyzing trace with hash -17070577, now seen corresponding path program 1 times [2018-11-07 21:13:59,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:13:59,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:13:59,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:13:59,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:13:59,381 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:13:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:13:59,840 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 21:14:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 177 proven. 153 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-07 21:14:00,870 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:14:00,871 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:14:00,871 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 555 with the following transitions: [2018-11-07 21:14:00,872 INFO L202 CegarAbsIntRunner]: [0], [1], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [879], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2035], [2037], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:14:00,880 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:14:00,880 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:14:01,807 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:14:01,807 INFO L272 AbstractInterpreter]: Visited 338 different actions 672 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:14:01,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:14:01,817 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:14:02,698 INFO L227 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 77.62% of their original sizes. [2018-11-07 21:14:02,699 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:14:03,164 INFO L415 sIntCurrentIteration]: We unified 553 AI predicates to 553 [2018-11-07 21:14:03,164 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:14:03,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:14:03,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [5] total 23 [2018-11-07 21:14:03,165 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:14:03,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 21:14:03,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 21:14:03,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2018-11-07 21:14:03,166 INFO L87 Difference]: Start difference. First operand 12002 states and 17324 transitions. Second operand 20 states. [2018-11-07 21:14:35,110 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 21:15:21,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-07 21:15:21,708 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:15:21,713 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:15:21,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:15:21 BoogieIcfgContainer [2018-11-07 21:15:21,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:15:21,715 INFO L168 Benchmark]: Toolchain (without parser) took 221804.74 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 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 1.7 GB. Max. memory is 7.1 GB. [2018-11-07 21:15:21,716 INFO L168 Benchmark]: CDTParser took 0.23 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 21:15:21,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1712.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:15:21,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 301.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -979.1 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 21:15:21,718 INFO L168 Benchmark]: Boogie Preprocessor took 202.26 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:15:21,719 INFO L168 Benchmark]: RCFGBuilder took 7857.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 506.5 MB). Peak memory consumption was 506.5 MB. Max. memory is 7.1 GB. [2018-11-07 21:15:21,719 INFO L168 Benchmark]: TraceAbstraction took 211725.50 ms. Allocated memory was 2.3 GB in the beginning and 4.5 GB in the end (delta: 2.2 GB). Free memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: -945.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 21:15:21,724 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1712.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 301.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -979.1 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 202.26 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7857.44 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 506.5 MB). Peak memory consumption was 506.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211725.50 ms. Allocated memory was 2.3 GB in the beginning and 4.5 GB in the end (delta: 2.2 GB). Free memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: -945.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 180]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 180). Cancelled while BasicCegarLoop was constructing difference of abstraction (12002states) and FLOYD_HOARE automaton (currently 32 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (17429 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 211.6s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 199.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2640 SDtfs, 24206 SDslu, 1160 SDs, 0 SdLazy, 39850 SolverSat, 5466 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1241 GetRequests, 1158 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12002occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.3s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9976887974417621 AbsIntWeakeningRatio, 0.07912457912457913 AbsIntAvgWeakeningVarsNumRemoved, 10.611952861952862 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 358 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1564 NumberOfCodeBlocks, 1564 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1558 ConstructedInterpolants, 0 QuantifiedInterpolants, 2236163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 717/1102 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown