java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label07_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:21:56,619 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:21:56,621 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:21:56,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:21:56,643 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:21:56,644 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:21:56,649 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:21:56,660 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:21:56,662 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:21:56,663 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:21:56,664 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:21:56,666 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:21:56,667 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:21:56,670 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:21:56,676 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:21:56,677 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:21:56,678 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:21:56,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:21:56,688 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:21:56,693 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:21:56,694 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:21:56,696 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:21:56,698 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 04:21:56,705 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:21:56,705 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:21:56,706 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:21:56,707 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:21:56,707 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 04:21:56,723 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:21:56,724 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:21:56,725 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:21:56,725 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:21:56,725 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:21:56,725 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:21:56,726 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:21:56,726 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:21:56,726 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:21:56,726 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:21:56,726 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:21:56,726 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:21:56,727 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:21:56,727 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:21:56,728 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:21:56,728 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:21:56,728 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:21:56,728 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:21:56,728 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:21:56,728 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:21:56,729 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:21:56,729 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:21:56,729 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:21:56,729 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:21:56,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:21:56,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:21:56,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:21:56,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:21:56,730 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:21:56,731 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:21:56,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:21:56,731 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:21:56,731 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:21:56,731 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:21:56,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:21:56,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:21:56,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:21:56,804 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:21:56,805 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:21:56,806 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label07_true-unreach-call.c [2018-09-19 04:21:57,187 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac17e72c4/d8f40e662f0a4f16a6c22cb545fd5455/FLAGf845ce52d [2018-09-19 04:21:57,664 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:21:57,665 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label07_true-unreach-call.c [2018-09-19 04:21:57,697 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac17e72c4/d8f40e662f0a4f16a6c22cb545fd5455/FLAGf845ce52d [2018-09-19 04:21:57,716 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac17e72c4/d8f40e662f0a4f16a6c22cb545fd5455 [2018-09-19 04:21:57,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:21:57,733 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:21:57,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:21:57,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:21:57,744 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:21:57,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:21:57" (1/1) ... [2018-09-19 04:21:57,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e2be10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:57, skipping insertion in model container [2018-09-19 04:21:57,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:21:57" (1/1) ... [2018-09-19 04:21:57,763 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:21:58,543 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:21:58,564 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:21:58,852 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:21:58,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58 WrapperNode [2018-09-19 04:21:58,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:21:58,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:21:58,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:21:58,962 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:21:58,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... [2018-09-19 04:21:59,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... [2018-09-19 04:21:59,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:21:59,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:21:59,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:21:59,191 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:21:59,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... [2018-09-19 04:21:59,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... [2018-09-19 04:21:59,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... [2018-09-19 04:21:59,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... [2018-09-19 04:21:59,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... [2018-09-19 04:21:59,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... [2018-09-19 04:21:59,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... [2018-09-19 04:21:59,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:21:59,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:21:59,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:21:59,825 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:21:59,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:21:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:21:59,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:21:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:21:59,920 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:21:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:21:59,921 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:21:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:21:59,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:21:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:21:59,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:22:06,405 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:22:06,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:22:06 BoogieIcfgContainer [2018-09-19 04:22:06,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:22:06,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:22:06,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:22:06,411 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:22:06,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:21:57" (1/3) ... [2018-09-19 04:22:06,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed0707b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:22:06, skipping insertion in model container [2018-09-19 04:22:06,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:21:58" (2/3) ... [2018-09-19 04:22:06,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed0707b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:22:06, skipping insertion in model container [2018-09-19 04:22:06,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:22:06" (3/3) ... [2018-09-19 04:22:06,416 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label07_true-unreach-call.c [2018-09-19 04:22:06,428 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:22:06,439 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:22:06,499 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:22:06,499 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:22:06,500 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:22:06,500 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:22:06,500 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:22:06,500 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:22:06,500 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:22:06,501 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:22:06,501 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:22:06,547 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 04:22:06,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-19 04:22:06,559 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:22:06,561 INFO L376 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] [2018-09-19 04:22:06,563 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:22:06,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1432875621, now seen corresponding path program 1 times [2018-09-19 04:22:06,572 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:22:06,573 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 62 with the following transitions: [2018-09-19 04:22:06,577 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 04:22:06,643 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:22:06,644 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:22:08,275 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:22:08,277 INFO L272 AbstractInterpreter]: Visited 60 different actions 60 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:22:08,294 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:22:09,042 INFO L232 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 80.71% of their original sizes. [2018-09-19 04:22:09,042 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:22:09,352 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:22:09,354 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:22:09,354 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:22:09,355 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:22:09,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:22:09,374 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:22:09,376 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:22:09,379 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 04:22:19,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:22:19,944 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 04:22:19,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:22:19,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-09-19 04:22:19,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:22:19,970 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 04:22:19,971 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 04:22:19,983 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:22:20,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 04:22:20,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 04:22:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 04:22:20,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 04:22:20,098 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 61 [2018-09-19 04:22:20,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:22:20,099 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 04:22:20,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:22:20,099 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 04:22:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-09-19 04:22:20,110 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:22:20,110 INFO L376 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:22:20,111 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:22:20,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1925037992, now seen corresponding path program 1 times [2018-09-19 04:22:20,111 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:22:20,112 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-09-19 04:22:20,112 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:22:20,120 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:22:20,121 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:22:22,476 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:22:26,701 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:22:26,701 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:22:26,743 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:22:27,962 INFO L232 lantSequenceWeakener]: Weakened 151 states. On average, predicates are now at 78.68% of their original sizes. [2018-09-19 04:22:27,962 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:22:29,010 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:22:29,010 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:22:29,011 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:22:29,011 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:22:29,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:22:29,012 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:22:29,013 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:22:29,013 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 04:22:47,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:22:47,718 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 04:22:47,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:22:47,718 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 153 [2018-09-19 04:22:47,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:22:47,727 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 04:22:47,728 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 04:22:47,733 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:22:47,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 04:22:47,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 04:22:47,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 04:22:47,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 04:22:47,796 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 153 [2018-09-19 04:22:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:22:47,798 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 04:22:47,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:22:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 04:22:47,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-09-19 04:22:47,804 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:22:47,804 INFO L376 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, 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] [2018-09-19 04:22:47,805 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:22:47,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1024127712, now seen corresponding path program 1 times [2018-09-19 04:22:47,805 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:22:47,805 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-09-19 04:22:47,806 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:22:47,814 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:22:47,814 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:22:51,731 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:22:58,173 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:22:58,173 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:22:58,176 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:22:59,479 INFO L232 lantSequenceWeakener]: Weakened 187 states. On average, predicates are now at 78.41% of their original sizes. [2018-09-19 04:22:59,480 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:22:59,945 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:22:59,946 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:22:59,946 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:22:59,946 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:22:59,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:22:59,948 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:22:59,948 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:22:59,948 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 04:23:18,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:23:18,385 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 04:23:18,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:23:18,393 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 189 [2018-09-19 04:23:18,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:23:18,404 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 04:23:18,405 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 04:23:18,408 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 197 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:23:18,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 04:23:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 04:23:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 04:23:18,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 04:23:18,476 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 189 [2018-09-19 04:23:18,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:23:18,477 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 04:23:18,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:23:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 04:23:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-09-19 04:23:18,487 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:23:18,488 INFO L376 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:23:18,488 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:23:18,488 INFO L82 PathProgramCache]: Analyzing trace with hash 963312320, now seen corresponding path program 1 times [2018-09-19 04:23:18,489 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:23:18,489 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 302 with the following transitions: [2018-09-19 04:23:18,490 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:23:18,502 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:23:18,502 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:23:30,337 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:23:30,337 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:23:30,346 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:23:32,184 INFO L232 lantSequenceWeakener]: Weakened 299 states. On average, predicates are now at 77.98% of their original sizes. [2018-09-19 04:23:32,185 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:23:32,633 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:23:32,634 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:23:32,634 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:23:32,634 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:23:32,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:23:32,635 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:23:32,636 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:23:32,636 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 04:23:44,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:23:44,394 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 04:23:44,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:23:44,395 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 301 [2018-09-19 04:23:44,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:23:44,404 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 04:23:44,405 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 04:23:44,409 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 311 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:23:44,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 04:23:44,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 04:23:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 04:23:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 04:23:44,464 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 301 [2018-09-19 04:23:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:23:44,465 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 04:23:44,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:23:44,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 04:23:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-09-19 04:23:44,470 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:23:44,471 INFO L376 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:23:44,471 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:23:44,471 INFO L82 PathProgramCache]: Analyzing trace with hash -72565936, now seen corresponding path program 1 times [2018-09-19 04:23:44,472 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:23:44,472 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 310 with the following transitions: [2018-09-19 04:23:44,472 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:23:44,481 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:23:44,482 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:24:01,639 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:24:01,640 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:24:01,649 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:24:03,293 INFO L232 lantSequenceWeakener]: Weakened 307 states. On average, predicates are now at 77.96% of their original sizes. [2018-09-19 04:24:03,293 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:24:03,731 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:24:03,732 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:24:03,732 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:24:03,732 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:24:03,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:24:03,733 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:24:03,734 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:24:03,734 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 04:24:21,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:24:21,916 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 04:24:21,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 04:24:21,922 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 309 [2018-09-19 04:24:21,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:24:21,933 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 04:24:21,933 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 04:24:21,937 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 321 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:24:21,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 04:24:21,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 04:24:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 04:24:22,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 04:24:22,001 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 309 [2018-09-19 04:24:22,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:24:22,002 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 04:24:22,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:24:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 04:24:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-09-19 04:24:22,013 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:24:22,013 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:24:22,013 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:24:22,014 INFO L82 PathProgramCache]: Analyzing trace with hash -701323395, now seen corresponding path program 1 times [2018-09-19 04:24:22,014 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:24:22,014 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 394 with the following transitions: [2018-09-19 04:24:22,015 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:24:22,022 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:24:22,022 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:24:23,849 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:24:45,551 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:24:45,551 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:24:45,556 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:24:47,738 INFO L232 lantSequenceWeakener]: Weakened 391 states. On average, predicates are now at 77.84% of their original sizes. [2018-09-19 04:24:47,738 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:24:48,088 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:24:48,089 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:24:48,089 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:24:48,089 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:24:48,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:24:48,090 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:24:48,091 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:24:48,091 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 04:25:03,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:25:03,819 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 04:25:03,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:25:03,821 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 393 [2018-09-19 04:25:03,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:25:03,835 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 04:25:03,835 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 04:25:03,840 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 403 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:25:03,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 04:25:03,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 04:25:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 04:25:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 04:25:03,912 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 393 [2018-09-19 04:25:03,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:25:03,912 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 04:25:03,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:25:03,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 04:25:03,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2018-09-19 04:25:03,923 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:03,923 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:25:03,923 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:03,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1879011676, now seen corresponding path program 1 times [2018-09-19 04:25:03,924 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:03,924 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 411 with the following transitions: [2018-09-19 04:25:03,925 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:25:03,931 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:03,932 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:11,206 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:25:26,815 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:25:26,815 INFO L272 AbstractInterpreter]: Visited 256 different actions 1013 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:25:26,818 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:25:29,232 INFO L232 lantSequenceWeakener]: Weakened 408 states. On average, predicates are now at 77.81% of their original sizes. [2018-09-19 04:25:29,232 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:25:29,621 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:25:29,622 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:25:29,622 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:25:29,622 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:25:29,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:25:29,623 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:25:29,623 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:25:29,623 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 04:25:40,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:25:40,654 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 04:25:40,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:25:40,655 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 410 [2018-09-19 04:25:40,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:25:40,666 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 04:25:40,667 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 04:25:40,672 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 420 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:25:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 04:25:40,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 04:25:40,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 04:25:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 04:25:40,743 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 410 [2018-09-19 04:25:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:25:40,744 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 04:25:40,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:25:40,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 04:25:40,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-09-19 04:25:40,751 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:40,751 INFO L376 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:25:40,752 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:40,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1948281349, now seen corresponding path program 1 times [2018-09-19 04:25:40,752 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:40,752 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 430 with the following transitions: [2018-09-19 04:25:40,753 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:25:40,759 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:40,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:43,164 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:26:03,388 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:26:03,389 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:26:03,393 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:26:05,564 INFO L232 lantSequenceWeakener]: Weakened 427 states. On average, predicates are now at 77.79% of their original sizes. [2018-09-19 04:26:05,564 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:26:05,902 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:26:05,903 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:26:05,903 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:26:05,903 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:26:05,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:26:05,904 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:26:05,904 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:26:05,904 INFO L87 Difference]: Start difference. First operand 2833 states and 3297 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 04:26:06,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 04:26:06,685 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:26:06,692 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:26:06,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:26:06 BoogieIcfgContainer [2018-09-19 04:26:06,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:26:06,693 INFO L168 Benchmark]: Toolchain (without parser) took 248963.81 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -446.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-19 04:26:06,695 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-09-19 04:26:06,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1226.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:26:06,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 227.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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. [2018-09-19 04:26:06,697 INFO L168 Benchmark]: Boogie Preprocessor took 634.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -922.3 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-19 04:26:06,698 INFO L168 Benchmark]: RCFGBuilder took 6581.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 268.8 MB). Peak memory consumption was 268.8 MB. Max. memory is 7.1 GB. [2018-09-19 04:26:06,699 INFO L168 Benchmark]: TraceAbstraction took 240285.95 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 80.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-19 04:26:06,704 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1226.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 227.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 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 Preprocessor took 634.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 768.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -922.3 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6581.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 268.8 MB). Peak memory consumption was 268.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240285.95 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 80.7 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 169]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 169). Cancelled while BasicCegarLoop was constructing difference of abstraction (2833states) and FLOYD_HOARE automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (72 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 240.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 105.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2802 SDtfs, 12860 SDslu, 2990 SDs, 0 SdLazy, 32156 SolverSat, 3282 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 93.6s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2305 GetRequests, 2163 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 116.8s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9964641998300237 AbsIntWeakeningRatio, 0.07688869021010282 AbsIntAvgWeakeningVarsNumRemoved, 921.9007599463567 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 1409 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label07_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-26-06-718.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label07_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-26-06-718.csv Completed graceful shutdown