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/psyco/psyco_accelerometer_1_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 13:01:43,200 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 13:01:43,202 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 13:01:43,226 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 13:01:43,227 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 13:01:43,228 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 13:01:43,229 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 13:01:43,231 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 13:01:43,233 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 13:01:43,233 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 13:01:43,234 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 13:01:43,235 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 13:01:43,236 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 13:01:43,237 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 13:01:43,238 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 13:01:43,239 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 13:01:43,240 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 13:01:43,243 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 13:01:43,248 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 13:01:43,250 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 13:01:43,253 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 13:01:43,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 13:01:43,260 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 13:01:43,261 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 13:01:43,261 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 13:01:43,266 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 13:01:43,268 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 13:01:43,268 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 13:01:43,269 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 13:01:43,272 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 13:01:43,273 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 13:01:43,273 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 13:01:43,274 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 13:01:43,274 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 13:01:43,277 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 13:01:43,278 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 13:01:43,278 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 [2018-09-15 13:01:43,300 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 13:01:43,300 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 13:01:43,301 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 13:01:43,301 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 13:01:43,301 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 13:01:43,301 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 13:01:43,302 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 13:01:43,302 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 13:01:43,302 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 13:01:43,302 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 13:01:43,302 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 13:01:43,303 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 13:01:43,303 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 13:01:43,303 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 13:01:43,304 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 13:01:43,304 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 13:01:43,304 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 13:01:43,304 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 13:01:43,304 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 13:01:43,305 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 13:01:43,305 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 13:01:43,305 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 13:01:43,305 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 13:01:43,305 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 13:01:43,306 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 13:01:43,306 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 13:01:43,306 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 13:01:43,306 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 13:01:43,306 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 13:01:43,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 13:01:43,307 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 13:01:43,307 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 13:01:43,307 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 13:01:43,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 13:01:43,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 13:01:43,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 13:01:43,393 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 13:01:43,393 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 13:01:43,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_accelerometer_1_true-unreach-call_false-termination.c [2018-09-15 13:01:43,724 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15dcc25f3/096768dba4344676b782076663395deb/FLAG070f784bf [2018-09-15 13:01:44,191 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 13:01:44,192 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_accelerometer_1_true-unreach-call_false-termination.c [2018-09-15 13:01:44,229 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15dcc25f3/096768dba4344676b782076663395deb/FLAG070f784bf [2018-09-15 13:01:44,253 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15dcc25f3/096768dba4344676b782076663395deb [2018-09-15 13:01:44,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 13:01:44,270 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 13:01:44,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 13:01:44,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 13:01:44,284 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 13:01:44,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:01:44" (1/1) ... [2018-09-15 13:01:44,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b77b10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:44, skipping insertion in model container [2018-09-15 13:01:44,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:01:44" (1/1) ... [2018-09-15 13:01:44,301 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 13:01:45,152 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:01:45,173 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 13:01:45,620 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:01:45,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45 WrapperNode [2018-09-15 13:01:45,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 13:01:45,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 13:01:45,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 13:01:45,710 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 13:01:45,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (1/1) ... [2018-09-15 13:01:45,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (1/1) ... [2018-09-15 13:01:45,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 13:01:45,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 13:01:45,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 13:01:45,791 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 13:01:46,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (1/1) ... [2018-09-15 13:01:46,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (1/1) ... [2018-09-15 13:01:46,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (1/1) ... [2018-09-15 13:01:46,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (1/1) ... [2018-09-15 13:01:46,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (1/1) ... [2018-09-15 13:01:46,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (1/1) ... [2018-09-15 13:01:46,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (1/1) ... [2018-09-15 13:01:46,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 13:01:46,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 13:01:46,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 13:01:46,242 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 13:01:46,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (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 [2018-09-15 13:01:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 13:01:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 13:01:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 13:01:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 13:01:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 13:01:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 13:01:50,727 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 13:01:50,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:01:50 BoogieIcfgContainer [2018-09-15 13:01:50,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 13:01:50,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 13:01:50,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 13:01:50,737 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 13:01:50,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:01:44" (1/3) ... [2018-09-15 13:01:50,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4117ab69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:01:50, skipping insertion in model container [2018-09-15 13:01:50,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:01:45" (2/3) ... [2018-09-15 13:01:50,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4117ab69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:01:50, skipping insertion in model container [2018-09-15 13:01:50,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:01:50" (3/3) ... [2018-09-15 13:01:50,742 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_accelerometer_1_true-unreach-call_false-termination.c [2018-09-15 13:01:50,750 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 13:01:50,759 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 13:01:50,813 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 13:01:50,813 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 13:01:50,814 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 13:01:50,814 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 13:01:50,814 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 13:01:50,814 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 13:01:50,814 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 13:01:50,814 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 13:01:50,815 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 13:01:50,843 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states. [2018-09-15 13:01:50,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 13:01:50,850 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:01:50,851 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:01:50,852 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:01:50,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1668338331, now seen corresponding path program 1 times [2018-09-15 13:01:50,861 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:01:50,862 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 13:01:50,865 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [27], [1220], [1223], [1224], [1225] [2018-09-15 13:01:50,924 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 13:01:50,925 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:01:51,789 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:01:51,791 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 41 variables. [2018-09-15 13:01:51,803 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:01:52,228 INFO L232 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 98.78% of their original sizes. [2018-09-15 13:01:52,228 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:01:52,323 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:01:52,324 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:01:52,325 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-15 13:01:52,325 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:01:52,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-15 13:01:52,337 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-15 13:01:52,338 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-15 13:01:52,341 INFO L87 Difference]: Start difference. First operand 242 states. Second operand 4 states. [2018-09-15 13:01:53,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:01:53,115 INFO L93 Difference]: Finished difference Result 472 states and 922 transitions. [2018-09-15 13:01:53,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 13:01:53,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-09-15 13:01:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:01:53,133 INFO L225 Difference]: With dead ends: 472 [2018-09-15 13:01:53,134 INFO L226 Difference]: Without dead ends: 231 [2018-09-15 13:01:53,139 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-15 13:01:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2018-09-15 13:01:53,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2018-09-15 13:01:53,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2018-09-15 13:01:53,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 400 transitions. [2018-09-15 13:01:53,200 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 400 transitions. Word has length 13 [2018-09-15 13:01:53,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:01:53,201 INFO L480 AbstractCegarLoop]: Abstraction has 231 states and 400 transitions. [2018-09-15 13:01:53,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-15 13:01:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 400 transitions. [2018-09-15 13:01:53,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-15 13:01:53,202 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:01:53,203 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:01:53,203 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:01:53,203 INFO L82 PathProgramCache]: Analyzing trace with hash 52853054, now seen corresponding path program 1 times [2018-09-15 13:01:53,203 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:01:53,204 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-15 13:01:53,204 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [42], [45], [48], [1220], [1223], [1224], [1225] [2018-09-15 13:01:53,206 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 13:01:53,207 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:01:54,306 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:01:54,306 INFO L272 AbstractInterpreter]: Visited 14 different actions 17 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-09-15 13:01:54,347 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:01:55,038 INFO L232 lantSequenceWeakener]: Weakened 14 states. On average, predicates are now at 97.84% of their original sizes. [2018-09-15 13:01:55,038 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:01:55,192 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:01:55,192 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:01:55,192 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-15 13:01:55,192 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:01:55,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-15 13:01:55,193 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-15 13:01:55,194 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-09-15 13:01:55,194 INFO L87 Difference]: Start difference. First operand 231 states and 400 transitions. Second operand 7 states. [2018-09-15 13:01:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:01:56,335 INFO L93 Difference]: Finished difference Result 507 states and 869 transitions. [2018-09-15 13:01:56,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-15 13:01:56,337 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-09-15 13:01:56,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:01:56,341 INFO L225 Difference]: With dead ends: 507 [2018-09-15 13:01:56,341 INFO L226 Difference]: Without dead ends: 279 [2018-09-15 13:01:56,344 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-09-15 13:01:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-09-15 13:01:56,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 263. [2018-09-15 13:01:56,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-09-15 13:01:56,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 448 transitions. [2018-09-15 13:01:56,363 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 448 transitions. Word has length 19 [2018-09-15 13:01:56,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:01:56,364 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 448 transitions. [2018-09-15 13:01:56,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-15 13:01:56,364 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 448 transitions. [2018-09-15 13:01:56,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-15 13:01:56,365 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:01:56,365 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:01:56,366 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:01:56,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1829095765, now seen corresponding path program 1 times [2018-09-15 13:01:56,366 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:01:56,366 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-09-15 13:01:56,367 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [116], [119], [135], [151], [166], [169], [172], [175], [1220], [1223], [1224], [1225] [2018-09-15 13:01:56,369 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 13:01:56,369 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:01:57,723 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:01:57,723 INFO L272 AbstractInterpreter]: Visited 21 different actions 24 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 45 variables. [2018-09-15 13:01:57,734 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:01:58,269 INFO L232 lantSequenceWeakener]: Weakened 21 states. On average, predicates are now at 96.91% of their original sizes. [2018-09-15 13:01:58,269 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:01:58,719 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:01:58,719 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:01:58,719 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 13:01:58,719 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:01:58,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 13:01:58,721 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 13:01:58,721 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-09-15 13:01:58,721 INFO L87 Difference]: Start difference. First operand 263 states and 448 transitions. Second operand 12 states. [2018-09-15 13:02:00,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:02:00,649 INFO L93 Difference]: Finished difference Result 520 states and 889 transitions. [2018-09-15 13:02:00,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-15 13:02:00,650 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2018-09-15 13:02:00,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:02:00,653 INFO L225 Difference]: With dead ends: 520 [2018-09-15 13:02:00,653 INFO L226 Difference]: Without dead ends: 263 [2018-09-15 13:02:00,655 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-15 13:02:00,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-09-15 13:02:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2018-09-15 13:02:00,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2018-09-15 13:02:00,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 436 transitions. [2018-09-15 13:02:00,674 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 436 transitions. Word has length 23 [2018-09-15 13:02:00,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:02:00,675 INFO L480 AbstractCegarLoop]: Abstraction has 261 states and 436 transitions. [2018-09-15 13:02:00,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 13:02:00,675 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 436 transitions. [2018-09-15 13:02:00,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-15 13:02:00,676 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:02:00,676 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-15 13:02:00,677 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:02:00,677 INFO L82 PathProgramCache]: Analyzing trace with hash -939444677, now seen corresponding path program 1 times [2018-09-15 13:02:00,677 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:02:00,677 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-09-15 13:02:00,677 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [116], [119], [135], [151], [166], [182], [198], [213], [216], [219], [222], [1220], [1223], [1224], [1225] [2018-09-15 13:02:00,681 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 13:02:00,681 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:02:01,961 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:02:01,962 INFO L272 AbstractInterpreter]: Visited 24 different actions 27 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 48 variables. [2018-09-15 13:02:01,998 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:02:02,825 INFO L232 lantSequenceWeakener]: Weakened 24 states. On average, predicates are now at 93.69% of their original sizes. [2018-09-15 13:02:02,825 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:02:03,661 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:02:03,661 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:02:03,662 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-15 13:02:03,662 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:02:03,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-15 13:02:03,663 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-15 13:02:03,663 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2018-09-15 13:02:03,664 INFO L87 Difference]: Start difference. First operand 261 states and 436 transitions. Second operand 16 states. [2018-09-15 13:02:10,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:02:10,887 INFO L93 Difference]: Finished difference Result 750 states and 1261 transitions. [2018-09-15 13:02:10,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-15 13:02:10,891 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 26 [2018-09-15 13:02:10,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:02:10,895 INFO L225 Difference]: With dead ends: 750 [2018-09-15 13:02:10,895 INFO L226 Difference]: Without dead ends: 490 [2018-09-15 13:02:10,897 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2018-09-15 13:02:10,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2018-09-15 13:02:10,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 457. [2018-09-15 13:02:10,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2018-09-15 13:02:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 717 transitions. [2018-09-15 13:02:10,934 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 717 transitions. Word has length 26 [2018-09-15 13:02:10,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:02:10,934 INFO L480 AbstractCegarLoop]: Abstraction has 457 states and 717 transitions. [2018-09-15 13:02:10,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-15 13:02:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 717 transitions. [2018-09-15 13:02:10,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-15 13:02:10,936 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:02:10,936 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:02:10,937 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:02:10,937 INFO L82 PathProgramCache]: Analyzing trace with hash 2111742031, now seen corresponding path program 1 times [2018-09-15 13:02:10,937 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:02:10,938 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 34 with the following transitions: [2018-09-15 13:02:10,939 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [42], [45], [48], [116], [119], [135], [151], [166], [182], [198], [213], [228], [231], [234], [239], [1220], [1223], [1224], [1225] [2018-09-15 13:02:10,941 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 13:02:10,941 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:02:12,303 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 13:02:13,814 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:02:13,814 INFO L272 AbstractInterpreter]: Visited 26 different actions 44 times. Merged at 14 different actions 15 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 50 variables. [2018-09-15 13:02:13,822 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:02:14,693 INFO L232 lantSequenceWeakener]: Weakened 28 states. On average, predicates are now at 84.92% of their original sizes. [2018-09-15 13:02:14,694 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:02:17,246 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:02:17,247 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:02:17,247 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-15 13:02:17,247 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:02:17,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-15 13:02:17,248 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-15 13:02:17,249 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2018-09-15 13:02:17,250 INFO L87 Difference]: Start difference. First operand 457 states and 717 transitions. Second operand 20 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown