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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:39:18,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:39:18,104 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:39:18,116 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:39:18,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:39:18,118 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:39:18,119 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:39:18,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:39:18,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:39:18,123 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:39:18,124 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:39:18,125 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:39:18,125 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:39:18,126 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:39:18,128 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:39:18,128 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:39:18,129 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:39:18,131 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:39:18,133 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:39:18,135 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:39:18,136 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:39:18,137 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:39:18,140 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 01:39:18,149 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:39:18,163 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:39:18,164 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:39:18,165 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:39:18,165 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:39:18,165 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:39:18,165 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:39:18,166 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:39:18,166 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:39:18,166 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:39:18,166 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:39:18,166 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:39:18,167 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:39:18,167 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:39:18,167 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:39:18,168 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:39:18,168 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:39:18,168 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:39:18,168 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:39:18,168 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:39:18,168 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:39:18,169 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:39:18,169 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:39:18,169 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:39:18,169 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:39:18,169 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:39:18,170 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:39:18,170 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:39:18,170 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:39:18,170 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:39:18,170 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:39:18,171 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:39:18,171 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:39:18,171 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:39:18,171 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:39:18,171 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:39:18,172 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:39:18,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:39:18,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:39:18,232 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:39:18,233 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:39:18,234 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:39:18,234 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label45_true-unreach-call.c [2018-10-25 01:39:18,296 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d1786e2ff/a1d57aa69bcb4c8f83b33da97c86c363/FLAG800feb510 [2018-10-25 01:39:19,103 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:39:19,104 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label45_true-unreach-call.c [2018-10-25 01:39:19,139 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d1786e2ff/a1d57aa69bcb4c8f83b33da97c86c363/FLAG800feb510 [2018-10-25 01:39:19,159 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d1786e2ff/a1d57aa69bcb4c8f83b33da97c86c363 [2018-10-25 01:39:19,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:39:19,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:39:19,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:39:19,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:39:19,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:39:19,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:39:19" (1/1) ... [2018-10-25 01:39:19,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379aca2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:19, skipping insertion in model container [2018-10-25 01:39:19,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:39:19" (1/1) ... [2018-10-25 01:39:19,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:39:19,381 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:39:20,811 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:39:20,816 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:39:21,409 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:39:21,446 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:39:21,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21 WrapperNode [2018-10-25 01:39:21,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:39:21,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:39:21,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:39:21,448 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:39:21,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (1/1) ... [2018-10-25 01:39:21,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (1/1) ... [2018-10-25 01:39:21,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:39:21,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:39:21,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:39:21,936 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:39:21,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (1/1) ... [2018-10-25 01:39:21,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (1/1) ... [2018-10-25 01:39:21,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (1/1) ... [2018-10-25 01:39:21,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (1/1) ... [2018-10-25 01:39:22,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (1/1) ... [2018-10-25 01:39:22,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (1/1) ... [2018-10-25 01:39:22,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (1/1) ... [2018-10-25 01:39:22,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:39:22,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:39:22,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:39:22,198 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:39:22,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (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 [2018-10-25 01:39:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:39:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:39:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 01:39:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 01:39:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 01:39:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 01:39:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 01:39:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 01:39:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:39:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:39:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:39:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:39:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:39:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:39:33,508 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:39:33,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:39:33 BoogieIcfgContainer [2018-10-25 01:39:33,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:39:33,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:39:33,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:39:33,513 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:39:33,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:39:19" (1/3) ... [2018-10-25 01:39:33,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133af59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:39:33, skipping insertion in model container [2018-10-25 01:39:33,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:39:21" (2/3) ... [2018-10-25 01:39:33,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133af59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:39:33, skipping insertion in model container [2018-10-25 01:39:33,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:39:33" (3/3) ... [2018-10-25 01:39:33,517 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label45_true-unreach-call.c [2018-10-25 01:39:33,527 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:39:33,537 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:39:33,554 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:39:33,599 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:39:33,599 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:39:33,599 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:39:33,599 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:39:33,599 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:39:33,600 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:39:33,600 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:39:33,600 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:39:33,643 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-25 01:39:33,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-25 01:39:33,658 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:39:33,660 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] [2018-10-25 01:39:33,662 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:39:33,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:39:33,668 INFO L82 PathProgramCache]: Analyzing trace with hash -427450892, now seen corresponding path program 1 times [2018-10-25 01:39:33,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:39:33,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:33,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:39:33,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:33,730 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:39:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:39:34,154 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:39:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:39:34,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:39:34,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 01:39:34,316 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:39:34,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:39:34,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:39:34,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:39:34,341 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-10-25 01:39:42,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:39:42,731 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-10-25 01:39:42,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:39:42,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-10-25 01:39:42,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:39:42,776 INFO L225 Difference]: With dead ends: 2446 [2018-10-25 01:39:42,777 INFO L226 Difference]: Without dead ends: 1604 [2018-10-25 01:39:42,790 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 [2018-10-25 01:39:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-10-25 01:39:42,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-10-25 01:39:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-10-25 01:39:42,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2861 transitions. [2018-10-25 01:39:42,969 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2861 transitions. Word has length 58 [2018-10-25 01:39:42,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:39:42,970 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 2861 transitions. [2018-10-25 01:39:42,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:39:42,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2861 transitions. [2018-10-25 01:39:42,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-25 01:39:42,981 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:39:42,981 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:39:42,982 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:39:42,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:39:42,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1706095754, now seen corresponding path program 1 times [2018-10-25 01:39:42,983 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:39:42,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:42,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:39:42,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:42,987 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:39:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:39:43,268 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:39:43,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:39:43,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:39:43,269 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:39:43,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:39:43,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:39:43,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:39:43,272 INFO L87 Difference]: Start difference. First operand 1604 states and 2861 transitions. Second operand 4 states. [2018-10-25 01:39:57,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:39:57,596 INFO L93 Difference]: Finished difference Result 6274 states and 11428 transitions. [2018-10-25 01:39:57,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:39:57,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2018-10-25 01:39:57,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:39:57,631 INFO L225 Difference]: With dead ends: 6274 [2018-10-25 01:39:57,631 INFO L226 Difference]: Without dead ends: 4676 [2018-10-25 01:39:57,641 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:39:57,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4676 states. [2018-10-25 01:39:57,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4676 to 4676. [2018-10-25 01:39:57,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4676 states. [2018-10-25 01:39:57,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4676 states to 4676 states and 7980 transitions. [2018-10-25 01:39:57,801 INFO L78 Accepts]: Start accepts. Automaton has 4676 states and 7980 transitions. Word has length 134 [2018-10-25 01:39:57,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:39:57,802 INFO L481 AbstractCegarLoop]: Abstraction has 4676 states and 7980 transitions. [2018-10-25 01:39:57,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:39:57,802 INFO L276 IsEmpty]: Start isEmpty. Operand 4676 states and 7980 transitions. [2018-10-25 01:39:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-25 01:39:57,821 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:39:57,821 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:39:57,822 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:39:57,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:39:57,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1738242550, now seen corresponding path program 1 times [2018-10-25 01:39:57,822 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:39:57,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:57,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:39:57,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:39:57,825 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:39:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:39:58,230 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:39:58,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:39:58,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:39:58,231 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:39:58,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:39:58,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:39:58,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:39:58,232 INFO L87 Difference]: Start difference. First operand 4676 states and 7980 transitions. Second operand 6 states. [2018-10-25 01:40:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:40:08,776 INFO L93 Difference]: Finished difference Result 14179 states and 24917 transitions. [2018-10-25 01:40:08,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:40:08,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-10-25 01:40:08,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:40:08,835 INFO L225 Difference]: With dead ends: 14179 [2018-10-25 01:40:08,835 INFO L226 Difference]: Without dead ends: 9509 [2018-10-25 01:40:08,854 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:40:08,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9509 states. [2018-10-25 01:40:09,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9509 to 9424. [2018-10-25 01:40:09,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9424 states. [2018-10-25 01:40:09,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9424 states to 9424 states and 15810 transitions. [2018-10-25 01:40:09,130 INFO L78 Accepts]: Start accepts. Automaton has 9424 states and 15810 transitions. Word has length 172 [2018-10-25 01:40:09,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:40:09,131 INFO L481 AbstractCegarLoop]: Abstraction has 9424 states and 15810 transitions. [2018-10-25 01:40:09,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:40:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 9424 states and 15810 transitions. [2018-10-25 01:40:09,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-25 01:40:09,143 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:40:09,144 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:40:09,144 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:40:09,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:40:09,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1389226247, now seen corresponding path program 1 times [2018-10-25 01:40:09,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:40:09,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:40:09,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:40:09,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:40:09,146 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:40:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:40:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:40:09,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:40:09,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:40:09,637 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:40:09,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:40:09,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:40:09,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:40:09,639 INFO L87 Difference]: Start difference. First operand 9424 states and 15810 transitions. Second operand 6 states. [2018-10-25 01:40:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:40:31,265 INFO L93 Difference]: Finished difference Result 35003 states and 63247 transitions. [2018-10-25 01:40:31,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-25 01:40:31,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2018-10-25 01:40:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:40:31,436 INFO L225 Difference]: With dead ends: 35003 [2018-10-25 01:40:31,436 INFO L226 Difference]: Without dead ends: 25585 [2018-10-25 01:40:31,533 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-25 01:40:31,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25585 states. [2018-10-25 01:40:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25585 to 25392. [2018-10-25 01:40:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25392 states. [2018-10-25 01:40:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25392 states to 25392 states and 40392 transitions. [2018-10-25 01:40:32,320 INFO L78 Accepts]: Start accepts. Automaton has 25392 states and 40392 transitions. Word has length 199 [2018-10-25 01:40:32,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:40:32,321 INFO L481 AbstractCegarLoop]: Abstraction has 25392 states and 40392 transitions. [2018-10-25 01:40:32,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:40:32,321 INFO L276 IsEmpty]: Start isEmpty. Operand 25392 states and 40392 transitions. [2018-10-25 01:40:32,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-10-25 01:40:32,333 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:40:32,333 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:40:32,333 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:40:32,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:40:32,334 INFO L82 PathProgramCache]: Analyzing trace with hash 446131319, now seen corresponding path program 1 times [2018-10-25 01:40:32,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:40:32,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:40:32,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:40:32,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:40:32,335 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:40:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:40:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:40:32,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:40:32,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:40:32,598 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:40:32,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:40:32,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:40:32,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:40:32,599 INFO L87 Difference]: Start difference. First operand 25392 states and 40392 transitions. Second operand 4 states. [2018-10-25 01:40:42,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:40:42,786 INFO L93 Difference]: Finished difference Result 64805 states and 106421 transitions. [2018-10-25 01:40:42,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:40:42,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2018-10-25 01:40:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:40:42,990 INFO L225 Difference]: With dead ends: 64805 [2018-10-25 01:40:42,990 INFO L226 Difference]: Without dead ends: 39419 [2018-10-25 01:40:43,105 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:40:43,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39419 states. [2018-10-25 01:40:44,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39419 to 38651. [2018-10-25 01:40:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38651 states. [2018-10-25 01:40:44,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38651 states to 38651 states and 55714 transitions. [2018-10-25 01:40:44,419 INFO L78 Accepts]: Start accepts. Automaton has 38651 states and 55714 transitions. Word has length 207 [2018-10-25 01:40:44,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:40:44,419 INFO L481 AbstractCegarLoop]: Abstraction has 38651 states and 55714 transitions. [2018-10-25 01:40:44,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:40:44,420 INFO L276 IsEmpty]: Start isEmpty. Operand 38651 states and 55714 transitions. [2018-10-25 01:40:44,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-10-25 01:40:44,476 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:40:44,477 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 01:40:44,477 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:40:44,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:40:44,478 INFO L82 PathProgramCache]: Analyzing trace with hash -433421620, now seen corresponding path program 1 times [2018-10-25 01:40:44,478 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:40:44,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:40:44,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:40:44,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:40:44,479 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:40:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:40:44,854 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 102 proven. 106 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 01:40:44,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:40:44,855 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:40:44,856 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 349 with the following transitions: [2018-10-25 01:40:44,859 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2231], [2233], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [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], [2524], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2796], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-25 01:40:44,917 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:40:44,917 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:40:45,674 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:40:45,679 INFO L272 AbstractInterpreter]: Visited 184 different actions 184 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-25 01:40:45,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:40:45,714 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:40:46,427 INFO L232 lantSequenceWeakener]: Weakened 339 states. On average, predicates are now at 75.47% of their original sizes. [2018-10-25 01:40:46,427 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:40:46,685 INFO L413 sIntCurrentIteration]: We have 347 unified AI predicates [2018-10-25 01:40:46,685 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:40:46,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:40:46,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-10-25 01:40:46,686 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:40:46,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:40:46,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:40:46,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:40:46,688 INFO L87 Difference]: Start difference. First operand 38651 states and 55714 transitions. Second operand 6 states. [2018-10-25 01:41:04,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:41:04,098 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-25 01:41:04,103 INFO L168 Benchmark]: Toolchain (without parser) took 104928.80 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -841.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-25 01:41:04,104 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-10-25 01:41:04,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2268.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-25 01:41:04,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 487.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 810.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. [2018-10-25 01:41:04,107 INFO L168 Benchmark]: Boogie Preprocessor took 261.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2018-10-25 01:41:04,108 INFO L168 Benchmark]: RCFGBuilder took 11311.24 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 159.9 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -143.6 MB). Peak memory consumption was 653.7 MB. Max. memory is 7.1 GB. [2018-10-25 01:41:04,109 INFO L168 Benchmark]: TraceAbstraction took 90592.26 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 127.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-25 01:41:04,116 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 2268.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 487.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 810.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 261.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11311.24 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 159.9 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -143.6 MB). Peak memory consumption was 653.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 90592.26 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 127.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...