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/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-133090d [2018-10-04 10:42:48,272 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 10:42:48,275 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 10:42:48,286 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 10:42:48,287 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 10:42:48,288 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 10:42:48,289 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 10:42:48,291 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 10:42:48,293 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 10:42:48,293 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 10:42:48,294 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 10:42:48,295 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 10:42:48,296 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 10:42:48,297 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 10:42:48,298 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 10:42:48,299 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 10:42:48,300 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 10:42:48,301 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 10:42:48,303 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 10:42:48,305 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 10:42:48,306 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 10:42:48,307 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 10:42:48,310 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 10:42:48,310 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 10:42:48,311 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 10:42:48,312 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 10:42:48,313 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 10:42:48,313 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 10:42:48,314 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 10:42:48,315 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 10:42:48,316 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 10:42:48,317 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 10:42:48,317 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 10:42:48,317 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 10:42:48,318 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 10:42:48,319 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 10:42:48,319 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-10-04 10:42:48,335 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 10:42:48,335 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 10:42:48,336 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 10:42:48,336 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 10:42:48,337 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 10:42:48,337 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 10:42:48,337 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 10:42:48,337 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 10:42:48,338 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 10:42:48,338 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 10:42:48,338 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 10:42:48,338 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 10:42:48,338 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 10:42:48,339 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 10:42:48,339 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 10:42:48,339 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 10:42:48,339 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 10:42:48,339 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 10:42:48,340 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 10:42:48,340 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 10:42:48,340 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 10:42:48,340 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 10:42:48,340 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 10:42:48,341 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 10:42:48,341 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 10:42:48,341 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 10:42:48,341 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 10:42:48,341 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 10:42:48,341 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 10:42:48,342 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 10:42:48,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 10:42:48,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 10:42:48,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 10:42:48,403 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 10:42:48,404 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 10:42:48,405 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl [2018-10-04 10:42:48,405 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl' [2018-10-04 10:42:48,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 10:42:48,455 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 10:42:48,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 10:42:48,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 10:42:48,456 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 10:42:48,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 10:42:48,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 10:42:48,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 10:42:48,497 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 10:42:48,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 10:42:48,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 10:42:48,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 10:42:48,517 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 10:42:48,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:42:48" (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:10000 (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:10000 [2018-10-04 10:42:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 10:42:48,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 10:42:48,882 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 10:42:48,883 INFO L202 PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 10:42:48 BoogieIcfgContainer [2018-10-04 10:42:48,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 10:42:48,883 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 10:42:48,884 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 10:42:48,893 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 10:42:48,893 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 10:42:48" (1/1) ... [2018-10-04 10:42:48,905 INFO L104 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 10:42:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:48,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-10-04 10:42:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-10-04 10:42:48,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 10:42:48,941 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:49,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-10-04 10:42:49,349 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-10-04 10:42:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 10:42:49,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:49,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:50,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2018-10-04 10:42:50,279 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2018-10-04 10:42:50,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 10:42:50,284 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:51,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2018-10-04 10:42:51,234 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2018-10-04 10:42:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 10:42:51,234 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:51,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2018-10-04 10:42:51,630 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2018-10-04 10:42:51,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 10:42:51,631 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:52,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:52,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2018-10-04 10:42:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2018-10-04 10:42:52,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-04 10:42:52,313 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2018-10-04 10:42:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2018-10-04 10:42:52,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-04 10:42:52,752 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:52,856 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:53,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 23 states and 38 transitions. [2018-10-04 10:42:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2018-10-04 10:42:53,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-04 10:42:53,510 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:54,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 25 states and 42 transitions. [2018-10-04 10:42:54,368 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2018-10-04 10:42:54,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-04 10:42:54,370 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:54,484 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2018-10-04 10:42:55,169 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2018-10-04 10:42:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-04 10:42:55,170 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:55,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:55,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2018-10-04 10:42:55,686 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2018-10-04 10:42:55,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-04 10:42:55,688 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:42:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 53 transitions. [2018-10-04 10:42:56,215 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2018-10-04 10:42:56,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-04 10:42:56,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-10-04 10:42:58,861 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 25 new depth: 22 [2018-10-04 10:42:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:42:59,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 55 states and 88 transitions. [2018-10-04 10:42:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 88 transitions. [2018-10-04 10:42:59,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-04 10:42:59,512 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:42:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:42:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-10-04 10:43:02,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:43:02,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 53 states and 66 transitions. [2018-10-04 10:43:02,102 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2018-10-04 10:43:02,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-04 10:43:02,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:43:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:43:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-10-04 10:43:06,166 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 42 new depth: 41 [2018-10-04 10:43:08,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:43:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 77 states and 101 transitions. [2018-10-04 10:43:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2018-10-04 10:43:08,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-04 10:43:08,050 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:43:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:43:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2018-10-04 10:43:12,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:43:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 77 states and 91 transitions. [2018-10-04 10:43:12,161 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2018-10-04 10:43:12,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-04 10:43:12,163 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:43:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:43:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 0 proven. 738 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-10-04 10:43:15,184 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 60 new depth: 58 [2018-10-04 10:43:17,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:43:17,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 101 states and 126 transitions. [2018-10-04 10:43:17,753 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2018-10-04 10:43:17,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-04 10:43:17,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:43:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:43:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 8 proven. 66 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2018-10-04 10:43:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:43:22,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 101 states and 116 transitions. [2018-10-04 10:43:22,817 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2018-10-04 10:43:22,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-04 10:43:22,818 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:43:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:43:23,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 1472 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2018-10-04 10:43:25,653 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 80 new depth: 78 [2018-10-04 10:43:30,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:43:30,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 125 states and 151 transitions. [2018-10-04 10:43:30,208 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 151 transitions. [2018-10-04 10:43:30,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-04 10:43:30,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:43:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:43:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2010 backedges. 10 proven. 88 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2018-10-04 10:43:36,420 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 99 new depth: 98 [2018-10-04 10:43:37,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:43:37,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 125 states and 141 transitions. [2018-10-04 10:43:37,706 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 141 transitions. [2018-10-04 10:43:37,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-04 10:43:37,707 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:43:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:43:39,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3000 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2018-10-04 10:43:45,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:43:45,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 149 states and 176 transitions. [2018-10-04 10:43:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 176 transitions. [2018-10-04 10:43:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-04 10:43:45,830 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:43:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:43:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 12 proven. 110 refuted. 0 times theorem prover too weak. 3000 trivial. 0 not checked. [2018-10-04 10:43:51,471 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 119 new depth: 118 [2018-10-04 10:43:53,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:43:53,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 149 states and 166 transitions. [2018-10-04 10:43:53,856 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 166 transitions. [2018-10-04 10:43:53,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-04 10:43:53,857 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:43:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:43:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 3672 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2018-10-04 10:44:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:44:02,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 173 states and 201 transitions. [2018-10-04 10:44:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 201 transitions. [2018-10-04 10:44:02,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-04 10:44:02,219 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:44:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:44:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 4478 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 4332 trivial. 0 not checked. [2018-10-04 10:44:09,820 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 142 new depth: 141 [2018-10-04 10:44:12,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:44:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 173 states and 191 transitions. [2018-10-04 10:44:12,526 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 191 transitions. [2018-10-04 10:44:12,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-04 10:44:12,527 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:44:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:44:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 5908 backedges. 0 proven. 5138 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2018-10-04 10:44:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:44:22,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 197 states and 226 transitions. [2018-10-04 10:44:22,698 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 226 transitions. [2018-10-04 10:44:22,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-04 10:44:22,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:44:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:44:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 6078 backedges. 16 proven. 154 refuted. 0 times theorem prover too weak. 5908 trivial. 0 not checked. [2018-10-04 10:44:32,156 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 164 new depth: 164 [2018-10-04 10:44:35,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:44:35,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 197 states and 216 transitions. [2018-10-04 10:44:35,048 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 216 transitions. [2018-10-04 10:44:35,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-10-04 10:44:35,050 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:44:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:44:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 7728 backedges. 0 proven. 6848 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2018-10-04 10:44:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:44:47,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 221 states and 251 transitions. [2018-10-04 10:44:47,254 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 251 transitions. [2018-10-04 10:44:47,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-04 10:44:47,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:44:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:44:47,416 INFO L134 CoverageAnalysis]: Checked inductivity of 7922 backedges. 18 proven. 176 refuted. 0 times theorem prover too weak. 7728 trivial. 0 not checked. [2018-10-04 10:44:59,456 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 187 new depth: 186 [2018-10-04 10:45:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:45:01,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 221 states and 241 transitions. [2018-10-04 10:45:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 241 transitions. [2018-10-04 10:45:01,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-04 10:45:01,970 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:45:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:45:02,771 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-10-04 10:45:15,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:45:15,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 245 states and 265 transitions. [2018-10-04 10:45:15,788 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2018-10-04 10:45:15,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-04 10:45:15,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:45:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:45:15,948 INFO L134 CoverageAnalysis]: Checked inductivity of 10010 backedges. 20 proven. 198 refuted. 0 times theorem prover too weak. 9792 trivial. 0 not checked. [2018-10-04 10:45:32,256 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 209 new depth: 208 [2018-10-04 10:45:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:45:34,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 245 states and 255 transitions. [2018-10-04 10:45:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 255 transitions. [2018-10-04 10:45:34,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-10-04 10:45:34,858 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:45:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:45:42,306 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 231 new depth: 210 [2018-10-04 10:45:50,104 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 233 new depth: 210 [2018-10-04 10:45:58,008 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 233 new depth: 210 [2018-10-04 10:46:06,502 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 233 new depth: 210 [2018-10-04 10:46:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 12100 backedges. 12082 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-04 10:46:18,765 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 236 new depth: 215 [2018-10-04 10:46:39,021 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 240 new depth: 228 [2018-10-04 10:47:00,902 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 253 new depth: 242 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown