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/Problem16_label31_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:43:50,085 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:43:50,087 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:43:50,101 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:43:50,101 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:43:50,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:43:50,105 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:43:50,107 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:43:50,110 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:43:50,111 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:43:50,112 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:43:50,112 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:43:50,113 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:43:50,114 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:43:50,115 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:43:50,116 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:43:50,116 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:43:50,118 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:43:50,120 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:43:50,122 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:43:50,123 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:43:50,124 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:43:50,126 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:43:50,127 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:43:50,127 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:43:50,128 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:43:50,129 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:43:50,130 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:43:50,130 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:43:50,132 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:43:50,132 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:43:50,132 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:43:50,133 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:43:50,133 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:43:50,134 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:43:50,135 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:43:50,135 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 [2018-11-12 16:43:50,152 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:43:50,152 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:43:50,153 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:43:50,153 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:43:50,153 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:43:50,154 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:43:50,154 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:43:50,154 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:43:50,154 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:43:50,154 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:43:50,155 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:43:50,155 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:43:50,155 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:43:50,156 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:43:50,156 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:43:50,156 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:43:50,156 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:43:50,156 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:43:50,157 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:43:50,157 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:43:50,157 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:43:50,157 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:43:50,157 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:43:50,158 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:43:50,158 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:43:50,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:43:50,158 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:43:50,159 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:43:50,159 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:43:50,159 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:43:50,159 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:43:50,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:43:50,160 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:43:50,160 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:43:50,160 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:43:50,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:43:50,232 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:43:50,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:43:50,236 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:43:50,237 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:43:50,237 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label31_false-unreach-call.c [2018-11-12 16:43:50,298 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54b4b60b/9ff7cd58060d4b468526b1c1669d51b9/FLAG778635922 [2018-11-12 16:43:50,958 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:43:50,959 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label31_false-unreach-call.c [2018-11-12 16:43:50,979 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54b4b60b/9ff7cd58060d4b468526b1c1669d51b9/FLAG778635922 [2018-11-12 16:43:51,000 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b54b4b60b/9ff7cd58060d4b468526b1c1669d51b9 [2018-11-12 16:43:51,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:43:51,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:43:51,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:43:51,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:43:51,019 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:43:51,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:43:51" (1/1) ... [2018-11-12 16:43:51,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7123bc9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:51, skipping insertion in model container [2018-11-12 16:43:51,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:43:51" (1/1) ... [2018-11-12 16:43:51,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:43:51,128 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:43:51,873 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:43:51,886 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:43:52,183 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:43:52,207 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:43:52,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52 WrapperNode [2018-11-12 16:43:52,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:43:52,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:43:52,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:43:52,209 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:43:52,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (1/1) ... [2018-11-12 16:43:52,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (1/1) ... [2018-11-12 16:43:52,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:43:52,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:43:52,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:43:52,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:43:52,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (1/1) ... [2018-11-12 16:43:52,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (1/1) ... [2018-11-12 16:43:52,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (1/1) ... [2018-11-12 16:43:52,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (1/1) ... [2018-11-12 16:43:52,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (1/1) ... [2018-11-12 16:43:52,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (1/1) ... [2018-11-12 16:43:52,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (1/1) ... [2018-11-12 16:43:52,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:43:52,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:43:52,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:43:52,564 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:43:52,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (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 [2018-11-12 16:43:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:43:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:43:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:43:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:43:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:43:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:43:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:43:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:43:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:43:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:43:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:43:58,725 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:43:58,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:43:58 BoogieIcfgContainer [2018-11-12 16:43:58,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:43:58,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:43:58,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:43:58,731 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:43:58,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:43:51" (1/3) ... [2018-11-12 16:43:58,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d2b313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:43:58, skipping insertion in model container [2018-11-12 16:43:58,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:43:52" (2/3) ... [2018-11-12 16:43:58,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d2b313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:43:58, skipping insertion in model container [2018-11-12 16:43:58,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:43:58" (3/3) ... [2018-11-12 16:43:58,735 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label31_false-unreach-call.c [2018-11-12 16:43:58,744 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:43:58,753 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:43:58,771 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:43:58,813 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:43:58,813 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:43:58,813 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:43:58,813 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:43:58,814 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:43:58,814 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:43:58,814 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:43:58,814 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:43:58,847 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 16:43:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-12 16:43:58,855 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:43:58,857 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:43:58,859 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:43:58,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:43:58,866 INFO L82 PathProgramCache]: Analyzing trace with hash -678316285, now seen corresponding path program 1 times [2018-11-12 16:43:58,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:43:58,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:58,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:43:58,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:43:58,926 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:43:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:43:59,261 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:43:59,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:43:59,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:43:59,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:43:59,331 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:43:59,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:43:59,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:43:59,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:43:59,350 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-12 16:44:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:44:02,832 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-12 16:44:02,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:44:02,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-12 16:44:02,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:44:02,857 INFO L225 Difference]: With dead ends: 1156 [2018-11-12 16:44:02,858 INFO L226 Difference]: Without dead ends: 744 [2018-11-12 16:44:02,866 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 [2018-11-12 16:44:02,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-12 16:44:02,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-12 16:44:02,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 16:44:02,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-11-12 16:44:02,980 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 15 [2018-11-12 16:44:02,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:44:02,980 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-11-12 16:44:02,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:44:02,981 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-11-12 16:44:02,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-12 16:44:02,986 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:44:02,986 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:44:02,986 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:44:02,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:02,987 INFO L82 PathProgramCache]: Analyzing trace with hash -539132716, now seen corresponding path program 1 times [2018-11-12 16:44:02,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:44:02,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:02,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:44:02,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:02,990 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:44:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:44:03,303 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:44:03,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:44:03,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:44:03,304 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:44:03,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:44:03,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:44:03,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:44:03,307 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-11-12 16:44:08,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:44:08,897 INFO L93 Difference]: Finished difference Result 2194 states and 4083 transitions. [2018-11-12 16:44:08,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:44:08,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2018-11-12 16:44:08,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:44:08,911 INFO L225 Difference]: With dead ends: 2194 [2018-11-12 16:44:08,911 INFO L226 Difference]: Without dead ends: 1456 [2018-11-12 16:44:08,916 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 16:44:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-11-12 16:44:08,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1436. [2018-11-12 16:44:08,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-11-12 16:44:08,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2550 transitions. [2018-11-12 16:44:08,988 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2550 transitions. Word has length 85 [2018-11-12 16:44:08,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:44:08,989 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 2550 transitions. [2018-11-12 16:44:08,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:44:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2550 transitions. [2018-11-12 16:44:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-11-12 16:44:08,993 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:44:08,994 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:44:08,994 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:44:08,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:08,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1336916587, now seen corresponding path program 1 times [2018-11-12 16:44:08,995 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:44:08,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:08,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:44:08,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:08,996 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:44:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:44:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:44:09,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:44:09,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:44:09,331 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:44:09,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:44:09,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:44:09,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:44:09,332 INFO L87 Difference]: Start difference. First operand 1436 states and 2550 transitions. Second operand 6 states. [2018-11-12 16:44:14,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:44:14,136 INFO L93 Difference]: Finished difference Result 3936 states and 7024 transitions. [2018-11-12 16:44:14,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:44:14,137 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-11-12 16:44:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:44:14,156 INFO L225 Difference]: With dead ends: 3936 [2018-11-12 16:44:14,157 INFO L226 Difference]: Without dead ends: 2506 [2018-11-12 16:44:14,166 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:44:14,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2018-11-12 16:44:14,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2479. [2018-11-12 16:44:14,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2479 states. [2018-11-12 16:44:14,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3996 transitions. [2018-11-12 16:44:14,261 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3996 transitions. Word has length 114 [2018-11-12 16:44:14,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:44:14,262 INFO L480 AbstractCegarLoop]: Abstraction has 2479 states and 3996 transitions. [2018-11-12 16:44:14,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:44:14,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3996 transitions. [2018-11-12 16:44:14,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-12 16:44:14,274 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:44:14,274 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:44:14,275 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:44:14,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:14,275 INFO L82 PathProgramCache]: Analyzing trace with hash -432327143, now seen corresponding path program 1 times [2018-11-12 16:44:14,275 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:44:14,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:14,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:44:14,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:14,277 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:44:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:44:14,591 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:44:14,892 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:44:14,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:44:14,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:44:14,892 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:44:14,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:44:14,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:44:14,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:44:14,894 INFO L87 Difference]: Start difference. First operand 2479 states and 3996 transitions. Second operand 6 states. [2018-11-12 16:44:18,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:44:18,269 INFO L93 Difference]: Finished difference Result 6050 states and 9896 transitions. [2018-11-12 16:44:18,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:44:18,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-11-12 16:44:18,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:44:18,297 INFO L225 Difference]: With dead ends: 6050 [2018-11-12 16:44:18,297 INFO L226 Difference]: Without dead ends: 3577 [2018-11-12 16:44:18,309 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:44:18,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2018-11-12 16:44:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3545. [2018-11-12 16:44:18,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3545 states. [2018-11-12 16:44:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 4965 transitions. [2018-11-12 16:44:18,416 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 4965 transitions. Word has length 132 [2018-11-12 16:44:18,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:44:18,417 INFO L480 AbstractCegarLoop]: Abstraction has 3545 states and 4965 transitions. [2018-11-12 16:44:18,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:44:18,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 4965 transitions. [2018-11-12 16:44:18,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-11-12 16:44:18,420 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:44:18,421 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:44:18,421 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:44:18,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:18,421 INFO L82 PathProgramCache]: Analyzing trace with hash 2013316637, now seen corresponding path program 1 times [2018-11-12 16:44:18,422 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:44:18,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:18,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:44:18,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:18,423 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:44:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:44:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 16:44:18,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:44:18,698 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:44:18,699 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 216 with the following transitions: [2018-11-12 16:44:18,702 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [199], [201], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:44:18,776 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:44:18,776 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:44:19,629 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:44:19,630 INFO L272 AbstractInterpreter]: Visited 135 different actions 135 times. Never merged. Never widened. Performed 2352 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2352 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 16:44:19,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:19,676 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:44:20,421 INFO L227 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 77.33% of their original sizes. [2018-11-12 16:44:20,421 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:44:21,409 INFO L415 sIntCurrentIteration]: We unified 214 AI predicates to 214 [2018-11-12 16:44:21,409 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:44:21,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:44:21,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2018-11-12 16:44:21,412 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:44:21,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 16:44:21,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 16:44:21,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-11-12 16:44:21,414 INFO L87 Difference]: Start difference. First operand 3545 states and 4965 transitions. Second operand 11 states. [2018-11-12 16:44:27,473 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:44:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:44:55,768 INFO L93 Difference]: Finished difference Result 7427 states and 10353 transitions. [2018-11-12 16:44:55,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-12 16:44:55,768 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 215 [2018-11-12 16:44:55,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:44:55,788 INFO L225 Difference]: With dead ends: 7427 [2018-11-12 16:44:55,788 INFO L226 Difference]: Without dead ends: 3888 [2018-11-12 16:44:55,802 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 169 SyntacticMatches, 36 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2018-11-12 16:44:55,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2018-11-12 16:44:55,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3883. [2018-11-12 16:44:55,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3883 states. [2018-11-12 16:44:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3883 states to 3883 states and 5311 transitions. [2018-11-12 16:44:55,896 INFO L78 Accepts]: Start accepts. Automaton has 3883 states and 5311 transitions. Word has length 215 [2018-11-12 16:44:55,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:44:55,896 INFO L480 AbstractCegarLoop]: Abstraction has 3883 states and 5311 transitions. [2018-11-12 16:44:55,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 16:44:55,897 INFO L276 IsEmpty]: Start isEmpty. Operand 3883 states and 5311 transitions. [2018-11-12 16:44:55,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-11-12 16:44:55,902 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:44:55,903 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2018-11-12 16:44:55,903 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:44:55,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:55,904 INFO L82 PathProgramCache]: Analyzing trace with hash -525434502, now seen corresponding path program 1 times [2018-11-12 16:44:55,904 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:44:55,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:55,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:44:55,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:44:55,905 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:44:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:44:56,232 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-12 16:44:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 96 proven. 115 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-12 16:44:56,851 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:44:56,851 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:44:56,852 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 308 with the following transitions: [2018-11-12 16:44:56,852 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [199], [201], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:44:56,860 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:44:56,861 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:44:56,938 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:44:57,554 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:44:57,554 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Performed 5829 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5829 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:44:57,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:44:57,595 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:44:58,814 INFO L227 lantSequenceWeakener]: Weakened 87 states. On average, predicates are now at 77.56% of their original sizes. [2018-11-12 16:44:58,815 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:45:00,489 INFO L415 sIntCurrentIteration]: We unified 306 AI predicates to 306 [2018-11-12 16:45:00,489 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:45:00,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:45:00,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [7] total 28 [2018-11-12 16:45:00,491 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:45:00,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 16:45:00,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 16:45:00,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:45:00,493 INFO L87 Difference]: Start difference. First operand 3883 states and 5311 transitions. Second operand 23 states. [2018-11-12 16:45:39,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:45:39,352 INFO L93 Difference]: Finished difference Result 9492 states and 12812 transitions. [2018-11-12 16:45:39,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-12 16:45:39,352 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 307 [2018-11-12 16:45:39,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:45:39,383 INFO L225 Difference]: With dead ends: 9492 [2018-11-12 16:45:39,384 INFO L226 Difference]: Without dead ends: 5953 [2018-11-12 16:45:39,397 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 326 GetRequests, 270 SyntacticMatches, 15 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2018-11-12 16:45:39,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5953 states. [2018-11-12 16:45:39,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5953 to 5485. [2018-11-12 16:45:39,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5485 states. [2018-11-12 16:45:39,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5485 states to 5485 states and 6987 transitions. [2018-11-12 16:45:39,554 INFO L78 Accepts]: Start accepts. Automaton has 5485 states and 6987 transitions. Word has length 307 [2018-11-12 16:45:39,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:45:39,555 INFO L480 AbstractCegarLoop]: Abstraction has 5485 states and 6987 transitions. [2018-11-12 16:45:39,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 16:45:39,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5485 states and 6987 transitions. [2018-11-12 16:45:39,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-11-12 16:45:39,563 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:45:39,563 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:45:39,563 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:45:39,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:39,564 INFO L82 PathProgramCache]: Analyzing trace with hash 943794690, now seen corresponding path program 1 times [2018-11-12 16:45:39,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:45:39,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:39,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:45:39,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:45:39,565 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:45:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:45:39,900 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-12 16:45:40,409 WARN L179 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-12 16:45:40,792 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-12 16:45:41,385 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 155 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-12 16:45:41,385 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:45:41,385 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:45:41,386 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 344 with the following transitions: [2018-11-12 16:45:41,386 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [199], [201], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:45:41,390 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:45:41,391 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:45:41,513 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:45:41,924 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:45:41,924 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Performed 7340 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7340 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:45:41,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:45:41,962 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:45:43,178 INFO L227 lantSequenceWeakener]: Weakened 87 states. On average, predicates are now at 77.56% of their original sizes. [2018-11-12 16:45:43,178 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:45:43,714 INFO L415 sIntCurrentIteration]: We unified 342 AI predicates to 342 [2018-11-12 16:45:43,714 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:45:43,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:45:43,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [13] total 35 [2018-11-12 16:45:43,715 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:45:43,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-12 16:45:43,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-12 16:45:43,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2018-11-12 16:45:43,717 INFO L87 Difference]: Start difference. First operand 5485 states and 6987 transitions. Second operand 24 states. [2018-11-12 16:46:37,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:46:37,195 INFO L93 Difference]: Finished difference Result 12309 states and 15800 transitions. [2018-11-12 16:46:37,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-12 16:46:37,196 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 343 [2018-11-12 16:46:37,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:46:37,225 INFO L225 Difference]: With dead ends: 12309 [2018-11-12 16:46:37,226 INFO L226 Difference]: Without dead ends: 8035 [2018-11-12 16:46:37,239 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 362 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=344, Invalid=1548, Unknown=0, NotChecked=0, Total=1892 [2018-11-12 16:46:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8035 states. [2018-11-12 16:46:37,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8035 to 7099. [2018-11-12 16:46:37,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7099 states. [2018-11-12 16:46:37,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7099 states to 7099 states and 8698 transitions. [2018-11-12 16:46:37,421 INFO L78 Accepts]: Start accepts. Automaton has 7099 states and 8698 transitions. Word has length 343 [2018-11-12 16:46:37,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:46:37,422 INFO L480 AbstractCegarLoop]: Abstraction has 7099 states and 8698 transitions. [2018-11-12 16:46:37,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-12 16:46:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 7099 states and 8698 transitions. [2018-11-12 16:46:37,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2018-11-12 16:46:37,438 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:46:37,439 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:46:37,439 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:46:37,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:46:37,440 INFO L82 PathProgramCache]: Analyzing trace with hash -339027486, now seen corresponding path program 1 times [2018-11-12 16:46:37,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:46:37,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:46:37,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:46:37,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:46:37,441 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:46:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:46:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 156 proven. 6 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-11-12 16:46:37,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:46:37,874 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:46:37,874 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 456 with the following transitions: [2018-11-12 16:46:37,875 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [199], [201], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:46:37,881 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:46:37,881 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:46:38,595 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:46:38,595 INFO L272 AbstractInterpreter]: Visited 249 different actions 494 times. Merged at 5 different actions 7 times. Never widened. Performed 8715 root evaluator evaluations with a maximum evaluation depth of 6. Performed 8715 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:46:38,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:46:38,635 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:46:39,253 INFO L227 lantSequenceWeakener]: Weakened 83 states. On average, predicates are now at 77.7% of their original sizes. [2018-11-12 16:46:39,253 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:46:41,013 INFO L415 sIntCurrentIteration]: We unified 454 AI predicates to 454 [2018-11-12 16:46:41,013 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:46:41,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:46:41,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [4] total 23 [2018-11-12 16:46:41,014 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:46:41,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 16:46:41,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 16:46:41,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2018-11-12 16:46:41,016 INFO L87 Difference]: Start difference. First operand 7099 states and 8698 transitions. Second operand 21 states. [2018-11-12 16:46:43,345 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:47:09,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:47:09,635 INFO L93 Difference]: Finished difference Result 12754 states and 16092 transitions. [2018-11-12 16:47:09,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 16:47:09,635 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 455 [2018-11-12 16:47:09,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:47:09,655 INFO L225 Difference]: With dead ends: 12754 [2018-11-12 16:47:09,655 INFO L226 Difference]: Without dead ends: 7735 [2018-11-12 16:47:09,670 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 468 GetRequests, 392 SyntacticMatches, 43 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=225, Invalid=965, Unknown=0, NotChecked=0, Total=1190 [2018-11-12 16:47:09,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2018-11-12 16:47:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 7730. [2018-11-12 16:47:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7730 states. [2018-11-12 16:47:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 9367 transitions. [2018-11-12 16:47:09,823 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 9367 transitions. Word has length 455 [2018-11-12 16:47:09,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:47:09,824 INFO L480 AbstractCegarLoop]: Abstraction has 7730 states and 9367 transitions. [2018-11-12 16:47:09,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-12 16:47:09,824 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 9367 transitions. [2018-11-12 16:47:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2018-11-12 16:47:09,839 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:47:09,840 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:47:09,840 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:47:09,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:47:09,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1198250382, now seen corresponding path program 1 times [2018-11-12 16:47:09,841 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:47:09,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:47:09,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:47:09,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:47:09,842 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:47:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:47:10,195 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 156 proven. 6 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-11-12 16:47:10,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:47:10,195 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:47:10,196 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 464 with the following transitions: [2018-11-12 16:47:10,196 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [199], [201], [204], [212], [220], [228], [236], [244], [252], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 16:47:10,201 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:47:10,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:47:13,070 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:47:13,070 INFO L272 AbstractInterpreter]: Visited 257 different actions 2265 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Performed 40121 root evaluator evaluations with a maximum evaluation depth of 6. Performed 40121 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:47:13,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:47:13,075 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:47:13,642 INFO L227 lantSequenceWeakener]: Weakened 110 states. On average, predicates are now at 77.56% of their original sizes. [2018-11-12 16:47:13,643 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:47:14,021 INFO L415 sIntCurrentIteration]: We unified 462 AI predicates to 462 [2018-11-12 16:47:14,022 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:47:14,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:47:14,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [4] total 26 [2018-11-12 16:47:14,022 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:47:14,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-12 16:47:14,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-12 16:47:14,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-11-12 16:47:14,024 INFO L87 Difference]: Start difference. First operand 7730 states and 9367 transitions. Second operand 24 states. [2018-11-12 16:47:16,680 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 16:47:25,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-12 16:47:25,299 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:47:25,304 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:47:25,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:47:25 BoogieIcfgContainer [2018-11-12 16:47:25,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:47:25,306 INFO L168 Benchmark]: Toolchain (without parser) took 214292.70 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -661.8 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-11-12 16:47:25,307 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-11-12 16:47:25,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1193.45 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-12 16:47:25,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 210.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -865.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-11-12 16:47:25,309 INFO L168 Benchmark]: Boogie Preprocessor took 144.32 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:47:25,309 INFO L168 Benchmark]: RCFGBuilder took 6162.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 247.4 MB). Peak memory consumption was 247.4 MB. Max. memory is 7.1 GB. [2018-11-12 16:47:25,310 INFO L168 Benchmark]: TraceAbstraction took 206577.46 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 2.1 GB in the end (delta: -128.7 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-12 16:47:25,315 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 1193.45 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 210.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -865.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.32 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6162.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 247.4 MB). Peak memory consumption was 247.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206577.46 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 2.1 GB in the end (delta: -128.7 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 31). Cancelled while BasicCegarLoop was constructing difference of abstraction (7730states) and FLOYD_HOARE automaton (currently 17 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (1395 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 206.5s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 184.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2059 SDtfs, 23443 SDslu, 1764 SDs, 0 SdLazy, 28424 SolverSat, 3372 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1878 GetRequests, 1599 SyntacticMatches, 99 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1675 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7730occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.9s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9974257435070766 AbsIntWeakeningRatio, 0.08661417322834646 AbsIntAvgWeakeningVarsNumRemoved, 10.263779527559056 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 1493 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 2129 NumberOfCodeBlocks, 2129 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2120 ConstructedInterpolants, 0 QuantifiedInterpolants, 2833195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 1044/1246 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown