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_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:18:39,810 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:18:39,813 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:18:39,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:18:39,829 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:18:39,830 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:18:39,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:18:39,834 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:18:39,836 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:18:39,839 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:18:39,846 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:18:39,846 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:18:39,847 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:18:39,852 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:18:39,855 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:18:39,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:18:39,857 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:18:39,861 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:18:39,863 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:18:39,867 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:18:39,869 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:18:39,871 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:18:39,873 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 02:18:39,888 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 [2018-10-24 02:18:39,916 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:18:39,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:18:39,918 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:18:39,919 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:18:39,919 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:18:39,919 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:18:39,919 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:18:39,919 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:18:39,920 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:18:39,920 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:18:39,920 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:18:39,920 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:18:39,921 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:18:39,922 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:18:39,922 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:18:39,922 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:18:39,922 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:18:39,922 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:18:39,923 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:18:39,923 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:18:39,923 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:18:39,923 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:18:39,923 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:18:39,924 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:18:39,926 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:18:39,926 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:18:39,926 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:18:39,926 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:18:39,926 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:18:39,927 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:18:39,927 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:18:39,927 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:18:39,927 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:18:39,927 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:18:40,006 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:18:40,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:18:40,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:18:40,031 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:18:40,031 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:18:40,032 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label59_true-unreach-call.c [2018-10-24 02:18:40,103 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/44f93bbfc/8328e622ca7941c6bff9767d441d03d4/FLAG06dc01d96 [2018-10-24 02:18:40,860 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:18:40,861 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label59_true-unreach-call.c [2018-10-24 02:18:40,889 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/44f93bbfc/8328e622ca7941c6bff9767d441d03d4/FLAG06dc01d96 [2018-10-24 02:18:40,905 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/44f93bbfc/8328e622ca7941c6bff9767d441d03d4 [2018-10-24 02:18:40,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:18:40,918 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:18:40,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:18:40,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:18:40,924 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:18:40,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:18:40" (1/1) ... [2018-10-24 02:18:40,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a1a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:40, skipping insertion in model container [2018-10-24 02:18:40,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:18:40" (1/1) ... [2018-10-24 02:18:40,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:18:41,093 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:18:42,101 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:18:42,106 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:18:42,550 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:18:42,583 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:18:42,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42 WrapperNode [2018-10-24 02:18:42,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:18:42,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:18:42,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:18:42,585 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:18:42,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (1/1) ... [2018-10-24 02:18:42,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (1/1) ... [2018-10-24 02:18:43,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:18:43,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:18:43,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:18:43,012 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:18:43,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (1/1) ... [2018-10-24 02:18:43,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (1/1) ... [2018-10-24 02:18:43,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (1/1) ... [2018-10-24 02:18:43,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (1/1) ... [2018-10-24 02:18:43,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (1/1) ... [2018-10-24 02:18:43,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (1/1) ... [2018-10-24 02:18:43,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (1/1) ... [2018-10-24 02:18:43,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:18:43,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:18:43,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:18:43,212 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:18:43,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (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 [2018-10-24 02:18:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:18:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:18:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 02:18:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 02:18:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:18:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:18:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:18:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:18:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:18:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:18:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:18:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:18:51,603 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:18:51,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:18:51 BoogieIcfgContainer [2018-10-24 02:18:51,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:18:51,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:18:51,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:18:51,610 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:18:51,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:18:40" (1/3) ... [2018-10-24 02:18:51,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e54e14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:18:51, skipping insertion in model container [2018-10-24 02:18:51,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:42" (2/3) ... [2018-10-24 02:18:51,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e54e14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:18:51, skipping insertion in model container [2018-10-24 02:18:51,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:18:51" (3/3) ... [2018-10-24 02:18:51,614 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label59_true-unreach-call.c [2018-10-24 02:18:51,626 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:18:51,637 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:18:51,656 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:18:51,717 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:18:51,717 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:18:51,717 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:18:51,718 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:18:51,718 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:18:51,718 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:18:51,718 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:18:51,718 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:18:51,764 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 02:18:51,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-24 02:18:51,773 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:18:51,774 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:18:51,777 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:18:51,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:18:51,784 INFO L82 PathProgramCache]: Analyzing trace with hash 520991260, now seen corresponding path program 1 times [2018-10-24 02:18:51,787 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:18:51,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:18:51,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:18:51,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:18:51,841 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:18:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:18:52,267 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:18:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:18:52,413 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:18:52,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 02:18:52,413 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:18:52,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 02:18:52,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 02:18:52,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:18:52,439 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 02:18:59,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:18:59,191 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 02:18:59,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 02:18:59,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-10-24 02:18:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:18:59,231 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 02:18:59,232 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 02:18:59,245 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 [2018-10-24 02:18:59,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 02:18:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 02:18:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 02:18:59,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-10-24 02:18:59,406 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 44 [2018-10-24 02:18:59,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:18:59,407 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-10-24 02:18:59,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 02:18:59,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-10-24 02:18:59,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 02:18:59,418 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:18:59,422 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:18:59,422 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:18:59,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:18:59,423 INFO L82 PathProgramCache]: Analyzing trace with hash 312836970, now seen corresponding path program 1 times [2018-10-24 02:18:59,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:18:59,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:18:59,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:18:59,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:18:59,425 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:18:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:18:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:18:59,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:18:59,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:18:59,650 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:18:59,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:18:59,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:18:59,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:18:59,653 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-10-24 02:19:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:19:07,521 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-10-24 02:19:07,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:19:07,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-10-24 02:19:07,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:19:07,549 INFO L225 Difference]: With dead ends: 4419 [2018-10-24 02:19:07,549 INFO L226 Difference]: Without dead ends: 2951 [2018-10-24 02:19:07,555 INFO L605 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 [2018-10-24 02:19:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-24 02:19:07,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-10-24 02:19:07,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-10-24 02:19:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-10-24 02:19:07,673 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 114 [2018-10-24 02:19:07,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:19:07,674 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-10-24 02:19:07,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:19:07,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-10-24 02:19:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-24 02:19:07,686 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:19:07,688 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:19:07,688 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:19:07,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:19:07,688 INFO L82 PathProgramCache]: Analyzing trace with hash 2035714247, now seen corresponding path program 1 times [2018-10-24 02:19:07,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:19:07,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:19:07,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:19:07,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:19:07,691 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:19:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:19:07,880 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:19:07,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:19:07,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:19:07,881 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:19:07,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:19:07,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:19:07,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:19:07,883 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 5 states. [2018-10-24 02:19:13,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:19:13,629 INFO L93 Difference]: Finished difference Result 7345 states and 13001 transitions. [2018-10-24 02:19:13,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:19:13,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2018-10-24 02:19:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:19:13,662 INFO L225 Difference]: With dead ends: 7345 [2018-10-24 02:19:13,662 INFO L226 Difference]: Without dead ends: 4426 [2018-10-24 02:19:13,672 INFO L605 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 [2018-10-24 02:19:13,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2018-10-24 02:19:13,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2018-10-24 02:19:13,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4391 states. [2018-10-24 02:19:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6473 transitions. [2018-10-24 02:19:13,815 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6473 transitions. Word has length 115 [2018-10-24 02:19:13,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:19:13,816 INFO L481 AbstractCegarLoop]: Abstraction has 4391 states and 6473 transitions. [2018-10-24 02:19:13,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:19:13,816 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6473 transitions. [2018-10-24 02:19:13,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-24 02:19:13,819 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:19:13,819 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:19:13,820 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:19:13,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:19:13,820 INFO L82 PathProgramCache]: Analyzing trace with hash 930788643, now seen corresponding path program 1 times [2018-10-24 02:19:13,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:19:13,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:19:13,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:19:13,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:19:13,822 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:19:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:19:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:19:13,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:19:13,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:19:13,985 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:19:13,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:19:13,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:19:13,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:19:13,987 INFO L87 Difference]: Start difference. First operand 4391 states and 6473 transitions. Second operand 5 states. [2018-10-24 02:19:27,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:19:27,686 INFO L93 Difference]: Finished difference Result 14820 states and 21982 transitions. [2018-10-24 02:19:27,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 02:19:27,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2018-10-24 02:19:27,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:19:27,743 INFO L225 Difference]: With dead ends: 14820 [2018-10-24 02:19:27,743 INFO L226 Difference]: Without dead ends: 10435 [2018-10-24 02:19:27,768 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:19:27,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10435 states. [2018-10-24 02:19:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10435 to 10283. [2018-10-24 02:19:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10283 states. [2018-10-24 02:19:28,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10283 states to 10283 states and 13623 transitions. [2018-10-24 02:19:28,050 INFO L78 Accepts]: Start accepts. Automaton has 10283 states and 13623 transitions. Word has length 117 [2018-10-24 02:19:28,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:19:28,050 INFO L481 AbstractCegarLoop]: Abstraction has 10283 states and 13623 transitions. [2018-10-24 02:19:28,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:19:28,051 INFO L276 IsEmpty]: Start isEmpty. Operand 10283 states and 13623 transitions. [2018-10-24 02:19:28,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-24 02:19:28,053 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:19:28,053 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:19:28,053 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:19:28,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:19:28,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1545723122, now seen corresponding path program 1 times [2018-10-24 02:19:28,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:19:28,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:19:28,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:19:28,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:19:28,055 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:19:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:19:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:19:28,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:19:28,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 02:19:28,210 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:19:28,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 02:19:28,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 02:19:28,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:19:28,212 INFO L87 Difference]: Start difference. First operand 10283 states and 13623 transitions. Second operand 3 states. [2018-10-24 02:19:33,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:19:33,071 INFO L93 Difference]: Finished difference Result 29769 states and 40235 transitions. [2018-10-24 02:19:33,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 02:19:33,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2018-10-24 02:19:33,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:19:33,154 INFO L225 Difference]: With dead ends: 29769 [2018-10-24 02:19:33,155 INFO L226 Difference]: Without dead ends: 19492 [2018-10-24 02:19:33,212 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:19:33,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2018-10-24 02:19:33,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 19484. [2018-10-24 02:19:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19484 states. [2018-10-24 02:19:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19484 states to 19484 states and 23730 transitions. [2018-10-24 02:19:33,646 INFO L78 Accepts]: Start accepts. Automaton has 19484 states and 23730 transitions. Word has length 142 [2018-10-24 02:19:33,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:19:33,647 INFO L481 AbstractCegarLoop]: Abstraction has 19484 states and 23730 transitions. [2018-10-24 02:19:33,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 02:19:33,647 INFO L276 IsEmpty]: Start isEmpty. Operand 19484 states and 23730 transitions. [2018-10-24 02:19:33,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-10-24 02:19:33,655 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:19:33,655 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 02:19:33,655 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:19:33,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:19:33,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1067446861, now seen corresponding path program 1 times [2018-10-24 02:19:33,656 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:19:33,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:19:33,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:19:33,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:19:33,657 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:19:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:19:34,053 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2018-10-24 02:19:34,279 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 02:19:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 02:19:34,467 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:19:34,467 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:19:34,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-10-24 02:19:34,470 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1875], [1877], [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], [2116], [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], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 02:19:34,549 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:19:34,549 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:19:37,029 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:19:37,030 INFO L272 AbstractInterpreter]: Visited 112 different actions 112 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 02:19:37,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:19:37,044 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:19:38,892 INFO L232 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 77.92% of their original sizes. [2018-10-24 02:19:38,893 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 02:19:39,191 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 02:19:39,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:19:39,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-10-24 02:19:39,192 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:19:39,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 02:19:39,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 02:19:39,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 02:19:39,194 INFO L87 Difference]: Start difference. First operand 19484 states and 23730 transitions. Second operand 7 states. [2018-10-24 02:19:47,028 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:21:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:21:02,781 INFO L93 Difference]: Finished difference Result 39667 states and 48231 transitions. [2018-10-24 02:21:02,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:21:02,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2018-10-24 02:21:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:21:02,841 INFO L225 Difference]: With dead ends: 39667 [2018-10-24 02:21:02,842 INFO L226 Difference]: Without dead ends: 20189 [2018-10-24 02:21:02,884 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:21:02,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20189 states. [2018-10-24 02:21:03,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20189 to 20187. [2018-10-24 02:21:03,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20187 states. [2018-10-24 02:21:03,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20187 states to 20187 states and 24445 transitions. [2018-10-24 02:21:03,239 INFO L78 Accepts]: Start accepts. Automaton has 20187 states and 24445 transitions. Word has length 221 [2018-10-24 02:21:03,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:21:03,239 INFO L481 AbstractCegarLoop]: Abstraction has 20187 states and 24445 transitions. [2018-10-24 02:21:03,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 02:21:03,240 INFO L276 IsEmpty]: Start isEmpty. Operand 20187 states and 24445 transitions. [2018-10-24 02:21:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-10-24 02:21:03,252 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:21:03,253 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:21:03,253 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:21:03,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:21:03,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1600796374, now seen corresponding path program 1 times [2018-10-24 02:21:03,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:21:03,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:21:03,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:21:03,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:21:03,255 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:21:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:21:03,842 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 02:21:04,045 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 02:21:04,269 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 02:21:04,693 WARN L179 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 02:21:05,042 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-24 02:21:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 170 proven. 183 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 02:21:05,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:21:05,535 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:21:05,536 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 409 with the following transitions: [2018-10-24 02:21:05,536 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1875], [1877], [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], [2116], [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], [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] [2018-10-24 02:21:05,546 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:21:05,546 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:21:17,400 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:21:17,400 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. [2018-10-24 02:21:17,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:21:17,408 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:21:23,012 INFO L232 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 77.89% of their original sizes. [2018-10-24 02:21:23,013 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 02:22:16,410 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 02:22:16,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:22:16,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 26 [2018-10-24 02:22:16,411 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:22:16,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 02:22:16,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 02:22:16,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-10-24 02:22:16,412 INFO L87 Difference]: Start difference. First operand 20187 states and 24445 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 02:22:21,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 02:22:21,583 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:22:21,591 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:22:21,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:22:21 BoogieIcfgContainer [2018-10-24 02:22:21,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:22:21,592 INFO L168 Benchmark]: Toolchain (without parser) took 220674.68 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -422.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-24 02:22:21,593 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-24 02:22:21,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1664.56 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. [2018-10-24 02:22:21,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 427.18 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: -949.2 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:22:21,596 INFO L168 Benchmark]: Boogie Preprocessor took 199.08 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-24 02:22:21,597 INFO L168 Benchmark]: RCFGBuilder took 8393.24 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: 489.8 MB). Peak memory consumption was 489.8 MB. Max. memory is 7.1 GB. [2018-10-24 02:22:21,597 INFO L168 Benchmark]: TraceAbstraction took 209985.24 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -140.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 02:22:21,608 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1664.56 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 427.18 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: -949.2 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 199.08 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8393.24 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: 489.8 MB). Peak memory consumption was 489.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209985.24 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -140.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 120). Cancelled while BasicCegarLoop was constructing difference of abstraction (20187states) and FLOYD_HOARE automaton (currently 9 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (19 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 209.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 128.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2688 SDtfs, 10998 SDslu, 776 SDs, 0 SdLazy, 19768 SolverSat, 5193 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 79.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 668 GetRequests, 517 SyntacticMatches, 106 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 53.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20187occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961023276240666 AbsIntWeakeningRatio, 0.09250398724082935 AbsIntAvgWeakeningVarsNumRemoved, 329.03189792663477 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 223 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1161 NumberOfCodeBlocks, 1161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1154 ConstructedInterpolants, 0 QuantifiedInterpolants, 1953137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 402/650 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown