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-c372c2b [2018-10-02 13:18:27,401 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-02 13:18:27,403 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-02 13:18:27,416 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-02 13:18:27,417 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-02 13:18:27,418 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-02 13:18:27,419 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-02 13:18:27,422 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-02 13:18:27,428 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-02 13:18:27,429 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-02 13:18:27,430 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-02 13:18:27,430 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-02 13:18:27,431 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-02 13:18:27,432 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-02 13:18:27,436 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-02 13:18:27,437 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-02 13:18:27,437 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-02 13:18:27,442 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-02 13:18:27,445 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-02 13:18:27,446 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-02 13:18:27,447 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-02 13:18:27,448 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-02 13:18:27,450 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-02 13:18:27,451 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-02 13:18:27,451 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-02 13:18:27,452 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-02 13:18:27,452 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-02 13:18:27,453 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-02 13:18:27,454 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-02 13:18:27,455 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-02 13:18:27,455 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-02 13:18:27,456 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-02 13:18:27,456 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-02 13:18:27,456 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-02 13:18:27,457 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-02 13:18:27,458 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-02 13:18:27,458 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 [2018-10-02 13:18:27,480 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-02 13:18:27,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-02 13:18:27,481 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-02 13:18:27,481 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-02 13:18:27,481 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-02 13:18:27,482 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-02 13:18:27,482 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-02 13:18:27,482 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-02 13:18:27,482 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-02 13:18:27,483 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-02 13:18:27,483 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-02 13:18:27,483 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-02 13:18:27,483 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-02 13:18:27,483 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-02 13:18:27,487 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-02 13:18:27,488 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-02 13:18:27,488 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-02 13:18:27,488 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-02 13:18:27,489 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-02 13:18:27,490 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-02 13:18:27,490 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-02 13:18:27,490 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-02 13:18:27,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-02 13:18:27,491 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-02 13:18:27,491 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-02 13:18:27,491 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-02 13:18:27,491 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-02 13:18:27,491 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-02 13:18:27,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-02 13:18:27,492 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-02 13:18:27,561 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-02 13:18:27,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-02 13:18:27,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-02 13:18:27,586 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-02 13:18:27,587 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-02 13:18:27,588 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl [2018-10-02 13:18:27,588 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl' [2018-10-02 13:18:27,645 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-02 13:18:27,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-02 13:18:27,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-02 13:18:27,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-02 13:18:27,650 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-02 13:18:27,670 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 02.10 01:18:27" (1/1) ... [2018-10-02 13:18:27,683 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 02.10 01:18:27" (1/1) ... [2018-10-02 13:18:27,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-02 13:18:27,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-02 13:18:27,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-02 13:18:27,691 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-02 13:18:27,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 01:18:27" (1/1) ... [2018-10-02 13:18:27,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 01:18:27" (1/1) ... [2018-10-02 13:18:27,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 01:18:27" (1/1) ... [2018-10-02 13:18:27,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 01:18:27" (1/1) ... [2018-10-02 13:18:27,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 01:18:27" (1/1) ... [2018-10-02 13:18:27,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 01:18:27" (1/1) ... [2018-10-02 13:18:27,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 01:18:27" (1/1) ... [2018-10-02 13:18:27,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-02 13:18:27,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-02 13:18:27,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-02 13:18:27,712 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-02 13:18:27,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 01:18:27" (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 [2018-10-02 13:18:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-02 13:18:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-02 13:18:28,106 INFO L340 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-02 13:18:28,107 INFO L202 PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:18:28 BoogieIcfgContainer [2018-10-02 13:18:28,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-02 13:18:28,109 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-02 13:18:28,109 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-02 13:18:28,122 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-02 13:18:28,122 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:18:28" (1/1) ... [2018-10-02 13:18:28,140 INFO L103 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-02 13:18:28,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:28,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-10-02 13:18:28,185 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-10-02 13:18:28,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-02 13:18:28,188 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-10-02 13:18:28,694 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-10-02 13:18:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-02 13:18:28,694 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:28,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:29,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2018-10-02 13:18:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2018-10-02 13:18:29,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-02 13:18:29,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:30,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:30,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2018-10-02 13:18:30,549 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2018-10-02 13:18:30,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-02 13:18:30,549 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:30,638 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:31,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2018-10-02 13:18:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2018-10-02 13:18:31,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-02 13:18:31,075 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:31,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2018-10-02 13:18:31,792 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2018-10-02 13:18:31,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-02 13:18:31,793 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:32,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:32,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2018-10-02 13:18:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2018-10-02 13:18:32,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-02 13:18:32,330 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:32,445 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 23 states and 38 transitions. [2018-10-02 13:18:33,266 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2018-10-02 13:18:33,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-02 13:18:33,268 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:33,363 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 25 states and 42 transitions. [2018-10-02 13:18:33,821 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2018-10-02 13:18:33,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-02 13:18:33,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2018-10-02 13:18:34,591 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2018-10-02 13:18:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-02 13:18:34,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:35,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2018-10-02 13:18:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2018-10-02 13:18:35,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-02 13:18:35,113 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:35,232 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 13:18:35,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:35,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 53 transitions. [2018-10-02 13:18:35,864 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2018-10-02 13:18:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-02 13:18:35,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:35,949 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-10-02 13:18:38,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:38,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 55 states and 88 transitions. [2018-10-02 13:18:38,867 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 88 transitions. [2018-10-02 13:18:38,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-02 13:18:38,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-10-02 13:18:41,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 53 states and 66 transitions. [2018-10-02 13:18:41,831 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2018-10-02 13:18:41,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-02 13:18:41,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:41,975 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-10-02 13:18:47,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:47,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 77 states and 101 transitions. [2018-10-02 13:18:47,888 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2018-10-02 13:18:47,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-02 13:18:47,889 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:47,976 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2018-10-02 13:18:51,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 77 states and 91 transitions. [2018-10-02 13:18:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2018-10-02 13:18:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-02 13:18:51,899 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 0 proven. 738 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-10-02 13:18:56,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:18:56,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 101 states and 126 transitions. [2018-10-02 13:18:56,685 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2018-10-02 13:18:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-02 13:18:56,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:18:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:18:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 8 proven. 66 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2018-10-02 13:19:02,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:19:02,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 101 states and 116 transitions. [2018-10-02 13:19:02,378 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2018-10-02 13:19:02,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-02 13:19:02,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:19:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:19:02,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 1472 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2018-10-02 13:19:08,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:19:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 125 states and 151 transitions. [2018-10-02 13:19:08,888 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 151 transitions. [2018-10-02 13:19:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-02 13:19:08,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:19:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:19:09,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2010 backedges. 10 proven. 88 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2018-10-02 13:19:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:19:16,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 125 states and 141 transitions. [2018-10-02 13:19:16,086 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 141 transitions. [2018-10-02 13:19:16,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-02 13:19:16,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:19:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:19:17,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3000 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2018-10-02 13:19:24,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:19:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 149 states and 176 transitions. [2018-10-02 13:19:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 176 transitions. [2018-10-02 13:19:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-02 13:19:24,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:19:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:19:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 12 proven. 110 refuted. 0 times theorem prover too weak. 3000 trivial. 0 not checked. [2018-10-02 13:19:31,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:19:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 149 states and 166 transitions. [2018-10-02 13:19:31,970 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 166 transitions. [2018-10-02 13:19:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-02 13:19:31,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:19:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:19:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 3672 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2018-10-02 13:19:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:19:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 173 states and 201 transitions. [2018-10-02 13:19:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 201 transitions. [2018-10-02 13:19:40,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-02 13:19:40,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:19:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:19:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4478 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 4332 trivial. 0 not checked. [2018-10-02 13:19:50,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:19:50,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 173 states and 191 transitions. [2018-10-02 13:19:50,254 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 191 transitions. [2018-10-02 13:19:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-02 13:19:50,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:19:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:19:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5908 backedges. 0 proven. 5138 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2018-10-02 13:20:00,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:20:00,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 197 states and 226 transitions. [2018-10-02 13:20:00,849 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 226 transitions. [2018-10-02 13:20:00,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-02 13:20:00,851 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:20:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:20:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6078 backedges. 16 proven. 154 refuted. 0 times theorem prover too weak. 5908 trivial. 0 not checked. [2018-10-02 13:20:12,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:20:12,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 197 states and 216 transitions. [2018-10-02 13:20:12,382 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 216 transitions. [2018-10-02 13:20:12,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-10-02 13:20:12,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:20:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:20:13,176 INFO L134 CoverageAnalysis]: Checked inductivity of 7728 backedges. 0 proven. 6848 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2018-10-02 13:20:24,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:20:24,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 221 states and 251 transitions. [2018-10-02 13:20:24,774 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 251 transitions. [2018-10-02 13:20:24,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-02 13:20:24,775 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:20:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:20:24,954 INFO L134 CoverageAnalysis]: Checked inductivity of 7922 backedges. 18 proven. 176 refuted. 0 times theorem prover too weak. 7728 trivial. 0 not checked. [2018-10-02 13:20:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:20:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 221 states and 241 transitions. [2018-10-02 13:20:37,462 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 241 transitions. [2018-10-02 13:20:37,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-02 13:20:37,463 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:20:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:20:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-10-02 13:20:51,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:20:51,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 245 states and 265 transitions. [2018-10-02 13:20:51,082 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2018-10-02 13:20:51,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-02 13:20:51,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:20:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:20:51,262 INFO L134 CoverageAnalysis]: Checked inductivity of 10010 backedges. 20 proven. 198 refuted. 0 times theorem prover too weak. 9792 trivial. 0 not checked. [2018-10-02 13:21:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-02 13:21:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 245 states and 255 transitions. [2018-10-02 13:21:08,903 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 255 transitions. [2018-10-02 13:21:08,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-10-02 13:21:08,906 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-02 13:21:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 13:21:35,329 INFO L134 CoverageAnalysis]: Checked inductivity of 12100 backedges. 12082 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown