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/Problem01_label20_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:15:01,083 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:15:01,085 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:15:01,097 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:15:01,098 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:15:01,099 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:15:01,100 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:15:01,102 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:15:01,104 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:15:01,105 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:15:01,106 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:15:01,107 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:15:01,108 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:15:01,109 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:15:01,110 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:15:01,111 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:15:01,112 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:15:01,114 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:15:01,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:15:01,118 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:15:01,119 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:15:01,128 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:15:01,133 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 17:15:01,150 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 17:15:01,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:15:01,180 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:15:01,181 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:15:01,181 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 17:15:01,182 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 17:15:01,187 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 17:15:01,187 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 17:15:01,187 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 17:15:01,187 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 17:15:01,188 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 17:15:01,188 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 17:15:01,188 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 17:15:01,189 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:15:01,189 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:15:01,189 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:15:01,190 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:15:01,190 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:15:01,190 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:15:01,190 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:15:01,190 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:15:01,191 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:15:01,192 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:15:01,192 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:15:01,192 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:15:01,192 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:15:01,192 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:15:01,193 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:15:01,194 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:15:01,194 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 17:15:01,194 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:15:01,194 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:15:01,194 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:15:01,195 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:15:01,195 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 17:15:01,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:15:01,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:15:01,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:15:01,281 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:15:01,281 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:15:01,282 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label20_false-unreach-call_false-termination.c [2018-10-24 17:15:01,356 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3049ac558/16a4abdac5974ac7b17337e1ee3e2b8d/FLAG0c3932d58 [2018-10-24 17:15:02,000 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:15:02,001 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label20_false-unreach-call_false-termination.c [2018-10-24 17:15:02,019 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3049ac558/16a4abdac5974ac7b17337e1ee3e2b8d/FLAG0c3932d58 [2018-10-24 17:15:02,040 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3049ac558/16a4abdac5974ac7b17337e1ee3e2b8d [2018-10-24 17:15:02,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:15:02,057 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:15:02,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:15:02,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:15:02,062 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:15:02,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f637f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02, skipping insertion in model container [2018-10-24 17:15:02,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:15:02,129 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:15:02,583 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:15:02,588 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:15:02,706 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:15:02,724 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:15:02,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02 WrapperNode [2018-10-24 17:15:02,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:15:02,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:15:02,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:15:02,727 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:15:02,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:15:02,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:15:02,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:15:02,917 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:15:02,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:02,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (1/1) ... [2018-10-24 17:15:03,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:15:03,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:15:03,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:15:03,008 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:15:03,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (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 17:15:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 17:15:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 17:15:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 17:15:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 17:15:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:15:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:15:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 17:15:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 17:15:06,046 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:15:06,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:15:06 BoogieIcfgContainer [2018-10-24 17:15:06,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:15:06,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:15:06,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:15:06,053 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:15:06,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:15:02" (1/3) ... [2018-10-24 17:15:06,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2577e99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:15:06, skipping insertion in model container [2018-10-24 17:15:06,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:15:02" (2/3) ... [2018-10-24 17:15:06,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2577e99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:15:06, skipping insertion in model container [2018-10-24 17:15:06,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:15:06" (3/3) ... [2018-10-24 17:15:06,058 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label20_false-unreach-call_false-termination.c [2018-10-24 17:15:06,068 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:15:06,078 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:15:06,095 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:15:06,134 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:15:06,135 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:15:06,135 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:15:06,135 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:15:06,135 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:15:06,135 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:15:06,136 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:15:06,136 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:15:06,163 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-24 17:15:06,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-10-24 17:15:06,175 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:06,176 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:15:06,182 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:06,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:06,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1836367149, now seen corresponding path program 1 times [2018-10-24 17:15:06,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:06,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:06,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:06,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:06,247 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:06,829 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 17:15:06,942 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 17:15:06,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:15:06,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:15:06,946 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:15:06,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 17:15:06,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 17:15:06,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:15:06,972 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-24 17:15:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:15:08,537 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-24 17:15:08,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:15:08,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2018-10-24 17:15:08,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:15:08,559 INFO L225 Difference]: With dead ends: 550 [2018-10-24 17:15:08,559 INFO L226 Difference]: Without dead ends: 340 [2018-10-24 17:15:08,566 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 17:15:08,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-24 17:15:08,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-24 17:15:08,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-24 17:15:08,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 562 transitions. [2018-10-24 17:15:08,675 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 562 transitions. Word has length 79 [2018-10-24 17:15:08,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:15:08,676 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 562 transitions. [2018-10-24 17:15:08,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 17:15:08,676 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 562 transitions. [2018-10-24 17:15:08,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-24 17:15:08,686 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:08,689 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:15:08,690 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:08,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:08,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1539527022, now seen corresponding path program 1 times [2018-10-24 17:15:08,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:08,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:08,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:08,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:08,694 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:08,993 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 17:15:09,209 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:15:09,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:15:09,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:15:09,210 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:15:09,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:15:09,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:15:09,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:15:09,213 INFO L87 Difference]: Start difference. First operand 340 states and 562 transitions. Second operand 6 states. [2018-10-24 17:15:11,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:15:11,100 INFO L93 Difference]: Finished difference Result 888 states and 1491 transitions. [2018-10-24 17:15:11,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:15:11,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2018-10-24 17:15:11,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:15:11,109 INFO L225 Difference]: With dead ends: 888 [2018-10-24 17:15:11,109 INFO L226 Difference]: Without dead ends: 554 [2018-10-24 17:15:11,115 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 17:15:11,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2018-10-24 17:15:11,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 539. [2018-10-24 17:15:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2018-10-24 17:15:11,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 827 transitions. [2018-10-24 17:15:11,154 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 827 transitions. Word has length 90 [2018-10-24 17:15:11,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:15:11,155 INFO L481 AbstractCegarLoop]: Abstraction has 539 states and 827 transitions. [2018-10-24 17:15:11,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:15:11,155 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 827 transitions. [2018-10-24 17:15:11,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-24 17:15:11,159 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:11,159 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 17:15:11,159 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:11,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:11,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1217877146, now seen corresponding path program 1 times [2018-10-24 17:15:11,160 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:11,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:11,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:11,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:11,161 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:15:11,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:15:11,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:15:11,385 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:15:11,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 17:15:11,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 17:15:11,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:15:11,388 INFO L87 Difference]: Start difference. First operand 539 states and 827 transitions. Second operand 3 states. [2018-10-24 17:15:12,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:15:12,774 INFO L93 Difference]: Finished difference Result 1530 states and 2434 transitions. [2018-10-24 17:15:12,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:15:12,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2018-10-24 17:15:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:15:12,783 INFO L225 Difference]: With dead ends: 1530 [2018-10-24 17:15:12,783 INFO L226 Difference]: Without dead ends: 997 [2018-10-24 17:15:12,787 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 17:15:12,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2018-10-24 17:15:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 997. [2018-10-24 17:15:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2018-10-24 17:15:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1433 transitions. [2018-10-24 17:15:12,840 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1433 transitions. Word has length 91 [2018-10-24 17:15:12,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:15:12,841 INFO L481 AbstractCegarLoop]: Abstraction has 997 states and 1433 transitions. [2018-10-24 17:15:12,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 17:15:12,841 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1433 transitions. [2018-10-24 17:15:12,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-24 17:15:12,847 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:12,847 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 17:15:12,847 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:12,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:12,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1260901286, now seen corresponding path program 1 times [2018-10-24 17:15:12,848 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:12,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:12,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:12,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:12,850 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:15:12,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:15:12,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:15:12,991 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:15:12,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 17:15:12,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 17:15:12,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 17:15:12,993 INFO L87 Difference]: Start difference. First operand 997 states and 1433 transitions. Second operand 3 states. [2018-10-24 17:15:14,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:15:14,942 INFO L93 Difference]: Finished difference Result 2877 states and 4284 transitions. [2018-10-24 17:15:14,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 17:15:14,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2018-10-24 17:15:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:15:14,961 INFO L225 Difference]: With dead ends: 2877 [2018-10-24 17:15:14,961 INFO L226 Difference]: Without dead ends: 1886 [2018-10-24 17:15:14,967 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 17:15:14,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2018-10-24 17:15:15,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1886. [2018-10-24 17:15:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1886 states. [2018-10-24 17:15:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2689 transitions. [2018-10-24 17:15:15,047 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2689 transitions. Word has length 97 [2018-10-24 17:15:15,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:15:15,048 INFO L481 AbstractCegarLoop]: Abstraction has 1886 states and 2689 transitions. [2018-10-24 17:15:15,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 17:15:15,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2689 transitions. [2018-10-24 17:15:15,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 17:15:15,054 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:15,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:15:15,054 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:15,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:15,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1827829834, now seen corresponding path program 1 times [2018-10-24 17:15:15,055 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:15,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:15,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:15,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:15,057 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:15:15,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:15:15,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:15:15,208 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:15:15,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:15:15,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:15:15,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:15:15,209 INFO L87 Difference]: Start difference. First operand 1886 states and 2689 transitions. Second operand 6 states. [2018-10-24 17:15:16,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:15:16,355 INFO L93 Difference]: Finished difference Result 3816 states and 5597 transitions. [2018-10-24 17:15:16,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:15:16,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2018-10-24 17:15:16,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:15:16,370 INFO L225 Difference]: With dead ends: 3816 [2018-10-24 17:15:16,371 INFO L226 Difference]: Without dead ends: 1936 [2018-10-24 17:15:16,380 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 17:15:16,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2018-10-24 17:15:16,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1885. [2018-10-24 17:15:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2018-10-24 17:15:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2473 transitions. [2018-10-24 17:15:16,443 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2473 transitions. Word has length 105 [2018-10-24 17:15:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:15:16,443 INFO L481 AbstractCegarLoop]: Abstraction has 1885 states and 2473 transitions. [2018-10-24 17:15:16,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:15:16,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2473 transitions. [2018-10-24 17:15:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-24 17:15:16,448 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:16,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:15:16,449 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:16,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:16,449 INFO L82 PathProgramCache]: Analyzing trace with hash 982006726, now seen corresponding path program 1 times [2018-10-24 17:15:16,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:16,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:16,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:16,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:16,451 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:16,663 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 17:15:16,663 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:15:16,663 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 17:15:16,665 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-10-24 17:15:16,667 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [105], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [269], [271], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-24 17:15:16,742 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 17:15:16,743 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 17:15:26,865 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 17:15:26,868 INFO L272 AbstractInterpreter]: Visited 68 different actions 68 times. Never merged. Never widened. Never found a fixpoint. Largest state had 42 variables. [2018-10-24 17:15:26,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:26,914 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 17:15:30,051 INFO L232 lantSequenceWeakener]: Weakened 97 states. On average, predicates are now at 79.78% of their original sizes. [2018-10-24 17:15:30,052 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 17:15:31,528 INFO L413 sIntCurrentIteration]: We have 112 unified AI predicates [2018-10-24 17:15:31,528 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 17:15:31,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:15:31,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [4] total 14 [2018-10-24 17:15:31,530 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:15:31,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 17:15:31,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 17:15:31,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-10-24 17:15:31,533 INFO L87 Difference]: Start difference. First operand 1885 states and 2473 transitions. Second operand 12 states. [2018-10-24 17:15:43,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:15:43,802 INFO L93 Difference]: Finished difference Result 3825 states and 5031 transitions. [2018-10-24 17:15:43,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 17:15:43,802 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2018-10-24 17:15:43,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:15:43,813 INFO L225 Difference]: With dead ends: 3825 [2018-10-24 17:15:43,813 INFO L226 Difference]: Without dead ends: 1946 [2018-10-24 17:15:43,820 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 118 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2018-10-24 17:15:43,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2018-10-24 17:15:43,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1946. [2018-10-24 17:15:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2018-10-24 17:15:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2543 transitions. [2018-10-24 17:15:43,886 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2543 transitions. Word has length 113 [2018-10-24 17:15:43,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:15:43,887 INFO L481 AbstractCegarLoop]: Abstraction has 1946 states and 2543 transitions. [2018-10-24 17:15:43,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 17:15:43,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2543 transitions. [2018-10-24 17:15:43,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-24 17:15:43,892 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:15:43,892 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:15:43,893 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:15:43,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:15:43,893 INFO L82 PathProgramCache]: Analyzing trace with hash 368614065, now seen corresponding path program 1 times [2018-10-24 17:15:43,893 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:15:43,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:43,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:15:43,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:15:43,895 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:15:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:15:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:15:44,186 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:15:44,186 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 17:15:44,186 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-10-24 17:15:44,187 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [77], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [269], [271], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-24 17:15:44,193 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 17:15:44,193 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 17:16:03,931 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 17:16:03,931 INFO L272 AbstractInterpreter]: Visited 83 different actions 149 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-24 17:16:03,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:16:03,941 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 17:16:06,859 INFO L232 lantSequenceWeakener]: Weakened 106 states. On average, predicates are now at 80.32% of their original sizes. [2018-10-24 17:16:06,859 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 17:16:49,612 INFO L413 sIntCurrentIteration]: We have 114 unified AI predicates [2018-10-24 17:16:49,612 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 17:16:49,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:16:49,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-10-24 17:16:49,612 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 17:16:49,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 17:16:49,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 17:16:49,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-10-24 17:16:49,613 INFO L87 Difference]: Start difference. First operand 1946 states and 2543 transitions. Second operand 17 states. [2018-10-24 17:17:56,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:17:56,094 INFO L93 Difference]: Finished difference Result 3970 states and 5212 transitions. [2018-10-24 17:17:56,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 17:17:56,094 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 115 [2018-10-24 17:17:56,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:17:56,103 INFO L225 Difference]: With dead ends: 3970 [2018-10-24 17:17:56,103 INFO L226 Difference]: Without dead ends: 2091 [2018-10-24 17:17:56,109 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 130 GetRequests, 55 SyntacticMatches, 44 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 52.9s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2018-10-24 17:17:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2018-10-24 17:17:56,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2084. [2018-10-24 17:17:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2018-10-24 17:17:56,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2697 transitions. [2018-10-24 17:17:56,296 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2697 transitions. Word has length 115 [2018-10-24 17:17:56,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:17:56,296 INFO L481 AbstractCegarLoop]: Abstraction has 2084 states and 2697 transitions. [2018-10-24 17:17:56,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-24 17:17:56,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2697 transitions. [2018-10-24 17:17:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-24 17:17:56,301 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:17:56,301 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:56,302 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:17:56,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:17:56,302 INFO L82 PathProgramCache]: Analyzing trace with hash 538280163, now seen corresponding path program 1 times [2018-10-24 17:17:56,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 17:17:56,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:17:56,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:17:56,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:17:56,304 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 17:17:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:17:56,721 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:17:56,721 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:17:56,721 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 17:17:56,721 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2018-10-24 17:17:56,723 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [73], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [269], [271], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-24 17:17:56,730 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 17:17:56,730 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 17:18:19,616 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 17:18:19,616 INFO L272 AbstractInterpreter]: Visited 83 different actions 148 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-24 17:18:19,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:18:19,623 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 17:18:23,312 INFO L232 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 80.29% of their original sizes. [2018-10-24 17:18:23,312 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 17:19:16,126 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:19:16,131 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:19:16,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:19:16 BoogieIcfgContainer [2018-10-24 17:19:16,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:19:16,133 INFO L168 Benchmark]: Toolchain (without parser) took 254079.50 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.7 GB). Peak memory consumption was 821.3 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:16,134 INFO L168 Benchmark]: CDTParser took 0.58 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. [2018-10-24 17:19:16,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.03 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:16,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 189.19 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 675.8 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -752.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:16,137 INFO L168 Benchmark]: Boogie Preprocessor took 91.46 ms. Allocated memory is still 2.1 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:16,137 INFO L168 Benchmark]: RCFGBuilder took 3039.72 ms. Allocated memory is still 2.1 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 110.8 MB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:16,139 INFO L168 Benchmark]: TraceAbstraction took 250083.34 ms. Allocated memory was 2.1 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 752.0 MB. Max. memory is 7.1 GB. [2018-10-24 17:19:16,145 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 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 668.03 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 189.19 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 675.8 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -752.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.46 ms. Allocated memory is still 2.1 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3039.72 ms. Allocated memory is still 2.1 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 110.8 MB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 250083.34 ms. Allocated memory was 2.1 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.1 GB). Peak memory consumption was 752.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 392]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 392). Cancelled while BasicCegarLoop was analyzing trace of length 118 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 250.0s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 86.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1193 SDtfs, 2808 SDslu, 638 SDs, 0 SdLazy, 3747 SolverSat, 735 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 281 GetRequests, 169 SyntacticMatches, 48 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 55.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2084occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 52.9s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9928004292574261 AbsIntWeakeningRatio, 0.2894736842105263 AbsIntAvgWeakeningVarsNumRemoved, 1958.2368421052631 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 73 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 690 NumberOfCodeBlocks, 690 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 683 ConstructedInterpolants, 0 QuantifiedInterpolants, 181399 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 96/125 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown