java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label45_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:24:54,097 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:24:54,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:24:54,121 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:24:54,121 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:24:54,124 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:24:54,125 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:24:54,128 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:24:54,133 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:24:54,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:24:54,139 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:24:54,140 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:24:54,141 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:24:54,142 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:24:54,143 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:24:54,147 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:24:54,150 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:24:54,152 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:24:54,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:24:54,166 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:24:54,170 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:24:54,172 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:24:54,177 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-27 00:24:54,195 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 00:24:54,232 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:24:54,232 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:24:54,234 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:24:54,234 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:24:54,234 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:24:54,234 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:24:54,235 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:24:54,235 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:24:54,235 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 00:24:54,235 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:24:54,235 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:24:54,239 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:24:54,240 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:24:54,240 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:24:54,241 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:24:54,241 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:24:54,241 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:24:54,241 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:24:54,242 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:24:54,242 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:24:54,242 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:24:54,245 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:24:54,245 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:24:54,245 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:24:54,246 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:24:54,246 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:24:54,246 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:24:54,247 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:24:54,247 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:24:54,247 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:24:54,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:24:54,248 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:24:54,248 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 00:24:54,248 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 00:24:54,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:24:54,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:24:54,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:24:54,358 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:24:54,359 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:24:54,360 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label45_false-unreach-call.c [2018-10-27 00:24:54,442 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/18c7b8de6/32273918e36d4e0cbb10ca87fe8bef0e/FLAG8837d1724 [2018-10-27 00:24:55,358 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:24:55,359 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label45_false-unreach-call.c [2018-10-27 00:24:55,394 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/18c7b8de6/32273918e36d4e0cbb10ca87fe8bef0e/FLAG8837d1724 [2018-10-27 00:24:55,412 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/18c7b8de6/32273918e36d4e0cbb10ca87fe8bef0e [2018-10-27 00:24:55,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:24:55,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:24:55,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:24:55,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:24:55,436 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:24:55,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:24:55" (1/1) ... [2018-10-27 00:24:55,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:55, skipping insertion in model container [2018-10-27 00:24:55,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:24:55" (1/1) ... [2018-10-27 00:24:55,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:24:55,602 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:24:56,642 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:24:56,648 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:24:57,150 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:24:57,183 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:24:57,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57 WrapperNode [2018-10-27 00:24:57,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:24:57,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:24:57,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:24:57,185 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:24:57,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... [2018-10-27 00:24:57,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... [2018-10-27 00:24:57,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:24:57,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:24:57,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:24:57,587 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:24:57,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... [2018-10-27 00:24:57,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... [2018-10-27 00:24:57,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... [2018-10-27 00:24:57,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... [2018-10-27 00:24:57,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... [2018-10-27 00:24:57,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... [2018-10-27 00:24:57,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... [2018-10-27 00:24:57,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:24:57,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:24:57,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:24:57,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:24:57,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:24:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:24:57,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:24:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 00:24:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 00:24:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 00:24:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 00:24:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 00:24:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 00:24:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:24:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:24:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:24:57,885 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:25:06,773 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:25:06,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:25:06 BoogieIcfgContainer [2018-10-27 00:25:06,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:25:06,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:25:06,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:25:06,782 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:25:06,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:24:55" (1/3) ... [2018-10-27 00:25:06,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb0b389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:25:06, skipping insertion in model container [2018-10-27 00:25:06,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:24:57" (2/3) ... [2018-10-27 00:25:06,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb0b389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:25:06, skipping insertion in model container [2018-10-27 00:25:06,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:25:06" (3/3) ... [2018-10-27 00:25:06,786 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label45_false-unreach-call.c [2018-10-27 00:25:06,796 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:25:06,809 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:25:06,828 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:25:06,890 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:25:06,890 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:25:06,890 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:25:06,890 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:25:06,890 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:25:06,891 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:25:06,891 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:25:06,891 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:25:06,951 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 00:25:06,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-27 00:25:06,959 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:25:06,960 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] [2018-10-27 00:25:06,963 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:25:06,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:25:06,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1137979268, now seen corresponding path program 1 times [2018-10-27 00:25:06,972 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:25:07,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:07,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:25:07,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:07,027 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:25:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:25:07,452 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:25:07,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:25:07,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:25:07,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:25:07,516 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:25:07,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:25:07,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:25:07,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:25:07,543 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-27 00:25:14,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:25:14,180 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-27 00:25:14,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:25:14,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-10-27 00:25:14,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:25:14,218 INFO L225 Difference]: With dead ends: 2251 [2018-10-27 00:25:14,219 INFO L226 Difference]: Without dead ends: 1474 [2018-10-27 00:25:14,231 INFO L605 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 [2018-10-27 00:25:14,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-27 00:25:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-27 00:25:14,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-27 00:25:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-10-27 00:25:14,376 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 36 [2018-10-27 00:25:14,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:25:14,377 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-10-27 00:25:14,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:25:14,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-10-27 00:25:14,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-27 00:25:14,385 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:25:14,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:25:14,386 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:25:14,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:25:14,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1760382179, now seen corresponding path program 1 times [2018-10-27 00:25:14,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:25:14,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:14,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:25:14,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:14,388 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:25:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:25:14,776 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:25:14,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:25:14,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:25:14,776 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:25:14,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:25:14,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:25:14,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:25:14,779 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-10-27 00:25:23,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:25:23,555 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-10-27 00:25:23,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:25:23,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-10-27 00:25:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:25:23,578 INFO L225 Difference]: With dead ends: 4419 [2018-10-27 00:25:23,578 INFO L226 Difference]: Without dead ends: 2951 [2018-10-27 00:25:23,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:25:23,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-27 00:25:23,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-10-27 00:25:23,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-10-27 00:25:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-10-27 00:25:23,705 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 125 [2018-10-27 00:25:23,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:25:23,708 INFO L481 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-10-27 00:25:23,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:25:23,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-10-27 00:25:23,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-27 00:25:23,721 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:25:23,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:25:23,725 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:25:23,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:25:23,725 INFO L82 PathProgramCache]: Analyzing trace with hash 439541734, now seen corresponding path program 1 times [2018-10-27 00:25:23,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:25:23,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:23,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:25:23,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:23,727 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:25:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:25:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:25:24,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:25:24,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:25:24,155 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:25:24,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:25:24,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:25:24,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:25:24,158 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-10-27 00:25:33,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:25:33,380 INFO L93 Difference]: Finished difference Result 10194 states and 17948 transitions. [2018-10-27 00:25:33,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:25:33,381 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-10-27 00:25:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:25:33,433 INFO L225 Difference]: With dead ends: 10194 [2018-10-27 00:25:33,434 INFO L226 Difference]: Without dead ends: 7272 [2018-10-27 00:25:33,453 INFO L605 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 [2018-10-27 00:25:33,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2018-10-27 00:25:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 7208. [2018-10-27 00:25:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7208 states. [2018-10-27 00:25:33,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7208 states to 7208 states and 11881 transitions. [2018-10-27 00:25:33,719 INFO L78 Accepts]: Start accepts. Automaton has 7208 states and 11881 transitions. Word has length 172 [2018-10-27 00:25:33,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:25:33,719 INFO L481 AbstractCegarLoop]: Abstraction has 7208 states and 11881 transitions. [2018-10-27 00:25:33,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:25:33,720 INFO L276 IsEmpty]: Start isEmpty. Operand 7208 states and 11881 transitions. [2018-10-27 00:25:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-27 00:25:33,724 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:25:33,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:25:33,724 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:25:33,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:25:33,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1837933570, now seen corresponding path program 1 times [2018-10-27 00:25:33,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:25:33,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:33,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:25:33,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:33,727 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:25:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:25:34,089 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 00:25:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:25:34,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:25:34,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:25:34,222 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:25:34,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:25:34,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:25:34,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:25:34,224 INFO L87 Difference]: Start difference. First operand 7208 states and 11881 transitions. Second operand 6 states. [2018-10-27 00:25:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:25:39,887 INFO L93 Difference]: Finished difference Result 17365 states and 29107 transitions. [2018-10-27 00:25:39,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:25:39,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-10-27 00:25:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:25:39,939 INFO L225 Difference]: With dead ends: 17365 [2018-10-27 00:25:39,940 INFO L226 Difference]: Without dead ends: 10163 [2018-10-27 00:25:39,969 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:25:39,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2018-10-27 00:25:40,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 10108. [2018-10-27 00:25:40,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10108 states. [2018-10-27 00:25:40,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10108 states to 10108 states and 14258 transitions. [2018-10-27 00:25:40,208 INFO L78 Accepts]: Start accepts. Automaton has 10108 states and 14258 transitions. Word has length 174 [2018-10-27 00:25:40,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:25:40,209 INFO L481 AbstractCegarLoop]: Abstraction has 10108 states and 14258 transitions. [2018-10-27 00:25:40,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:25:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 10108 states and 14258 transitions. [2018-10-27 00:25:40,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-10-27 00:25:40,216 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:25:40,216 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 00:25:40,216 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:25:40,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:25:40,217 INFO L82 PathProgramCache]: Analyzing trace with hash 268481184, now seen corresponding path program 1 times [2018-10-27 00:25:40,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:25:40,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:40,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:25:40,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:40,218 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:25:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:25:40,493 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-27 00:25:40,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:25:40,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:25:40,494 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:25:40,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:25:40,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:25:40,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:25:40,495 INFO L87 Difference]: Start difference. First operand 10108 states and 14258 transitions. Second operand 4 states. [2018-10-27 00:25:48,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:25:48,615 INFO L93 Difference]: Finished difference Result 28811 states and 41798 transitions. [2018-10-27 00:25:48,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:25:48,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 232 [2018-10-27 00:25:48,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:25:48,695 INFO L225 Difference]: With dead ends: 28811 [2018-10-27 00:25:48,696 INFO L226 Difference]: Without dead ends: 18709 [2018-10-27 00:25:48,744 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:25:48,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18709 states. [2018-10-27 00:25:49,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18709 to 18709. [2018-10-27 00:25:49,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18709 states. [2018-10-27 00:25:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18709 states to 18709 states and 25926 transitions. [2018-10-27 00:25:49,116 INFO L78 Accepts]: Start accepts. Automaton has 18709 states and 25926 transitions. Word has length 232 [2018-10-27 00:25:49,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:25:49,117 INFO L481 AbstractCegarLoop]: Abstraction has 18709 states and 25926 transitions. [2018-10-27 00:25:49,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:25:49,117 INFO L276 IsEmpty]: Start isEmpty. Operand 18709 states and 25926 transitions. [2018-10-27 00:25:49,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-10-27 00:25:49,133 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:25:49,134 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 00:25:49,134 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:25:49,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:25:49,135 INFO L82 PathProgramCache]: Analyzing trace with hash -418391288, now seen corresponding path program 1 times [2018-10-27 00:25:49,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:25:49,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:49,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:25:49,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:25:49,136 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:25:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:25:49,549 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 133 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 00:25:49,549 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:25:49,550 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:25:49,552 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 277 with the following transitions: [2018-10-27 00:25:49,555 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], [1811], [1813], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [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], [2368], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 00:25:49,659 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:25:49,660 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:25:53,547 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 00:25:53,599 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:25:53,601 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 00:25:53,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:25:53,618 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:25:56,261 INFO L227 lantSequenceWeakener]: Weakened 268 states. On average, predicates are now at 77.65% of their original sizes. [2018-10-27 00:25:56,261 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:25:56,730 INFO L415 sIntCurrentIteration]: We unified 275 AI predicates to 275 [2018-10-27 00:25:56,730 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:25:56,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:25:56,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-10-27 00:25:56,732 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:25:56,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:25:56,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:25:56,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:25:56,733 INFO L87 Difference]: Start difference. First operand 18709 states and 25926 transitions. Second operand 7 states. [2018-10-27 00:27:01,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:01,699 INFO L93 Difference]: Finished difference Result 38117 states and 52714 transitions. [2018-10-27 00:27:01,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:27:01,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2018-10-27 00:27:01,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:01,773 INFO L225 Difference]: With dead ends: 38117 [2018-10-27 00:27:01,773 INFO L226 Difference]: Without dead ends: 19414 [2018-10-27 00:27:01,822 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 276 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:27:01,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2018-10-27 00:27:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 19412. [2018-10-27 00:27:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19412 states. [2018-10-27 00:27:02,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19412 states to 19412 states and 26641 transitions. [2018-10-27 00:27:02,199 INFO L78 Accepts]: Start accepts. Automaton has 19412 states and 26641 transitions. Word has length 276 [2018-10-27 00:27:02,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:02,200 INFO L481 AbstractCegarLoop]: Abstraction has 19412 states and 26641 transitions. [2018-10-27 00:27:02,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:27:02,200 INFO L276 IsEmpty]: Start isEmpty. Operand 19412 states and 26641 transitions. [2018-10-27 00:27:02,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2018-10-27 00:27:02,223 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:02,224 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:02,224 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:02,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:02,225 INFO L82 PathProgramCache]: Analyzing trace with hash -41660661, now seen corresponding path program 1 times [2018-10-27 00:27:02,225 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:27:02,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:02,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:02,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:02,227 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:27:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:02,796 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 00:27:03,013 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 00:27:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 146 proven. 283 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 00:27:03,476 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:27:03,476 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:27:03,476 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 464 with the following transitions: [2018-10-27 00:27:03,477 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], [1811], [1813], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [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], [2368], [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] [2018-10-27 00:27:03,486 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:27:03,487 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:27:06,023 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 00:27:15,169 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:27:15,169 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 00:27:15,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:15,178 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:27:19,781 INFO L227 lantSequenceWeakener]: Weakened 180 states. On average, predicates are now at 78% of their original sizes. [2018-10-27 00:27:19,781 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:28:12,363 INFO L415 sIntCurrentIteration]: We unified 462 AI predicates to 462 [2018-10-27 00:28:12,363 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:28:12,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:28:12,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 26 [2018-10-27 00:28:12,364 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:28:12,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-27 00:28:12,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-27 00:28:12,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-10-27 00:28:12,365 INFO L87 Difference]: Start difference. First operand 19412 states and 26641 transitions. Second operand 17 states. Received shutdown request... [2018-10-27 00:28:42,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 00:28:42,657 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 00:28:42,662 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 00:28:42,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:28:42 BoogieIcfgContainer [2018-10-27 00:28:42,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:28:42,664 INFO L168 Benchmark]: Toolchain (without parser) took 227236.22 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -687.5 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-27 00:28:42,665 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 00:28:42,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1754.23 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. [2018-10-27 00:28:42,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 401.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -948.4 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-27 00:28:42,667 INFO L168 Benchmark]: Boogie Preprocessor took 215.28 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-10-27 00:28:42,668 INFO L168 Benchmark]: RCFGBuilder took 8974.67 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: 515.7 MB). Peak memory consumption was 515.7 MB. Max. memory is 7.1 GB. [2018-10-27 00:28:42,669 INFO L168 Benchmark]: TraceAbstraction took 215884.73 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -416.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-27 00:28:42,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1754.23 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 401.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -948.4 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 215.28 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8974.67 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: 515.7 MB). Peak memory consumption was 515.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215884.73 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -416.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 96). Cancelled while BasicCegarLoop was constructing difference of abstraction (19412states) and FLOYD_HOARE automaton (currently 9 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (100 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 215.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 134.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2556 SDtfs, 12354 SDslu, 767 SDs, 0 SdLazy, 23178 SolverSat, 6330 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 77.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 782 GetRequests, 633 SyntacticMatches, 100 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 53.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19412occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9966840697697283 AbsIntWeakeningRatio, 0.07869742198100407 AbsIntAvgWeakeningVarsNumRemoved, 430.94436906377206 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 144 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1478 NumberOfCodeBlocks, 1478 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1471 ConstructedInterpolants, 0 QuantifiedInterpolants, 2259927 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 523/833 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown