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/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b2fde6a [2018-09-28 11:50:48,270 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-28 11:50:48,272 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-28 11:50:48,290 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-28 11:50:48,291 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-28 11:50:48,292 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-28 11:50:48,294 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-28 11:50:48,296 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-28 11:50:48,298 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-28 11:50:48,299 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-28 11:50:48,300 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-28 11:50:48,301 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-28 11:50:48,302 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-28 11:50:48,303 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-28 11:50:48,304 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-28 11:50:48,305 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-28 11:50:48,306 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-28 11:50:48,307 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-28 11:50:48,310 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-28 11:50:48,311 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-28 11:50:48,312 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-28 11:50:48,314 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-28 11:50:48,316 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-28 11:50:48,316 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-28 11:50:48,316 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-28 11:50:48,317 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-28 11:50:48,318 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-28 11:50:48,319 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-28 11:50:48,320 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-28 11:50:48,321 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-28 11:50:48,321 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-28 11:50:48,322 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-28 11:50:48,322 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-28 11:50:48,323 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-28 11:50:48,324 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-28 11:50:48,324 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-28 11:50:48,325 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 [2018-09-28 11:50:48,345 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-28 11:50:48,345 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-28 11:50:48,346 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-28 11:50:48,346 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-28 11:50:48,347 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-28 11:50:48,347 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-28 11:50:48,347 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-28 11:50:48,347 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-28 11:50:48,348 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-28 11:50:48,348 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-28 11:50:48,348 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-28 11:50:48,348 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-28 11:50:48,351 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-28 11:50:48,351 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-28 11:50:48,351 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-28 11:50:48,351 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-28 11:50:48,352 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-28 11:50:48,352 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-28 11:50:48,352 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-28 11:50:48,352 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-28 11:50:48,352 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-28 11:50:48,353 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-28 11:50:48,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-28 11:50:48,353 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-28 11:50:48,355 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-28 11:50:48,356 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-28 11:50:48,356 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-28 11:50:48,356 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-28 11:50:48,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-28 11:50:48,357 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-28 11:50:48,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-28 11:50:48,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-28 11:50:48,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-28 11:50:48,451 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-28 11:50:48,451 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-28 11:50:48,452 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl [2018-09-28 11:50:48,453 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/doubleLoopUniformIterations.bpl' [2018-09-28 11:50:48,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-28 11:50:48,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-28 11:50:48,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-28 11:50:48,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-28 11:50:48,506 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-28 11:50:48,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,544 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-28 11:50:48,544 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-28 11:50:48,545 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-28 11:50:48,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-28 11:50:48,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-28 11:50:48,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-28 11:50:48,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-28 11:50:48,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-28 11:50:48,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-28 11:50:48,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-28 11:50:48,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-28 11:50:48,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:50:48" (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 [2018-09-28 11:50:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2018-09-28 11:50:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2018-09-28 11:50:48,914 INFO L350 CfgBuilder]: Using library mode [2018-09-28 11:50:48,915 INFO L202 PluginConnector]: Adding new model doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:50:48 BoogieIcfgContainer [2018-09-28 11:50:48,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-28 11:50:48,916 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-28 11:50:48,916 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-28 11:50:48,929 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-28 11:50:48,929 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "doubleLoopUniformIterations.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:50:48" (1/1) ... [2018-09-28 11:50:48,943 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 11:50:48,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:48,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-09-28 11:50:48,989 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-28 11:50:48,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-28 11:50:48,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:49,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2018-09-28 11:50:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2018-09-28 11:50:49,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-28 11:50:49,626 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2018-09-28 11:50:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2018-09-28 11:50:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-28 11:50:50,354 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:51,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 15 states and 24 transitions. [2018-09-28 11:50:51,521 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2018-09-28 11:50:51,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-28 11:50:51,522 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:52,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:52,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 16 states and 27 transitions. [2018-09-28 11:50:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 27 transitions. [2018-09-28 11:50:52,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-28 11:50:52,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:52,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:53,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:53,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 19 states and 34 transitions. [2018-09-28 11:50:53,048 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 34 transitions. [2018-09-28 11:50:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-28 11:50:53,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:53,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2018-09-28 11:50:53,989 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2018-09-28 11:50:53,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-28 11:50:53,990 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:54,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:54,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2018-09-28 11:50:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2018-09-28 11:50:54,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:50:54,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:54,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:55,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2018-09-28 11:50:55,832 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-09-28 11:50:55,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:50:55,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:56,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:56,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2018-09-28 11:50:56,295 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2018-09-28 11:50:56,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-28 11:50:56,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2018-09-28 11:50:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2018-09-28 11:50:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-28 11:50:57,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:57,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 27 states and 41 transitions. [2018-09-28 11:50:57,929 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2018-09-28 11:50:57,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-28 11:50:57,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:58,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 28 states and 43 transitions. [2018-09-28 11:50:58,585 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2018-09-28 11:50:58,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-28 11:50:58,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 29 states and 44 transitions. [2018-09-28 11:50:59,176 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2018-09-28 11:50:59,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-28 11:50:59,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:59,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:59,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2018-09-28 11:50:59,952 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2018-09-28 11:50:59,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:50:59,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:59,997 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:00,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:00,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2018-09-28 11:51:00,471 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2018-09-28 11:51:00,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:51:00,473 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:00,530 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2018-09-28 11:51:01,334 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2018-09-28 11:51:01,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-28 11:51:01,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 36 states and 55 transitions. [2018-09-28 11:51:02,126 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 55 transitions. [2018-09-28 11:51:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:51:02,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:03,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 38 states and 58 transitions. [2018-09-28 11:51:03,353 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2018-09-28 11:51:03,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:51:03,354 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:04,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:04,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 39 states and 60 transitions. [2018-09-28 11:51:04,203 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2018-09-28 11:51:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:51:04,204 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:05,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:05,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 40 states and 62 transitions. [2018-09-28 11:51:05,964 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 62 transitions. [2018-09-28 11:51:05,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-28 11:51:05,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:06,190 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 42 states and 65 transitions. [2018-09-28 11:51:07,117 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2018-09-28 11:51:07,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-28 11:51:07,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 28 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2018-09-28 11:51:08,522 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2018-09-28 11:51:08,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-28 11:51:08,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 28 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:09,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:09,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 45 states and 70 transitions. [2018-09-28 11:51:09,447 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 70 transitions. [2018-09-28 11:51:09,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-28 11:51:09,448 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 36 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:10,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 46 states and 71 transitions. [2018-09-28 11:51:10,595 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 71 transitions. [2018-09-28 11:51:10,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-28 11:51:10,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:12,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 48 states and 74 transitions. [2018-09-28 11:51:12,033 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 74 transitions. [2018-09-28 11:51:12,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-28 11:51:12,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:13,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 50 states and 77 transitions. [2018-09-28 11:51:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 77 transitions. [2018-09-28 11:51:13,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-28 11:51:13,146 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:14,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 51 states and 79 transitions. [2018-09-28 11:51:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 79 transitions. [2018-09-28 11:51:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-28 11:51:14,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 66 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 52 states and 81 transitions. [2018-09-28 11:51:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 81 transitions. [2018-09-28 11:51:18,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-28 11:51:18,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:20,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:20,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 54 states and 84 transitions. [2018-09-28 11:51:20,980 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 84 transitions. [2018-09-28 11:51:20,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-28 11:51:20,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:21,043 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:22,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:22,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 56 states and 87 transitions. [2018-09-28 11:51:22,332 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 87 transitions. [2018-09-28 11:51:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-28 11:51:22,333 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:23,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 57 states and 89 transitions. [2018-09-28 11:51:23,889 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 89 transitions. [2018-09-28 11:51:23,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-28 11:51:23,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 66 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:26,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 58 states and 91 transitions. [2018-09-28 11:51:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 91 transitions. [2018-09-28 11:51:26,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-28 11:51:26,431 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:27,223 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:29,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:29,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 60 states and 94 transitions. [2018-09-28 11:51:29,006 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 94 transitions. [2018-09-28 11:51:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-28 11:51:29,007 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:29,078 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 55 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:31,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 62 states and 97 transitions. [2018-09-28 11:51:31,088 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 97 transitions. [2018-09-28 11:51:31,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-28 11:51:31,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 55 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:33,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 63 states and 99 transitions. [2018-09-28 11:51:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 99 transitions. [2018-09-28 11:51:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-28 11:51:33,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 66 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 64 states and 100 transitions. [2018-09-28 11:51:35,106 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 100 transitions. [2018-09-28 11:51:35,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-28 11:51:35,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 105 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:42,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 65 states and 102 transitions. [2018-09-28 11:51:42,780 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 102 transitions. [2018-09-28 11:51:42,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-28 11:51:42,780 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:46,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:46,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 67 states and 105 transitions. [2018-09-28 11:51:46,217 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 105 transitions. [2018-09-28 11:51:46,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 11:51:46,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:48,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 69 states and 108 transitions. [2018-09-28 11:51:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 108 transitions. [2018-09-28 11:51:48,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 11:51:48,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 66 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:51,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 70 states and 110 transitions. [2018-09-28 11:51:51,713 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 110 transitions. [2018-09-28 11:51:51,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 11:51:51,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 105 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:59,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 71 states and 112 transitions. [2018-09-28 11:51:59,095 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 112 transitions. [2018-09-28 11:51:59,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-28 11:51:59,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:00,364 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:52:03,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:52:03,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 73 states and 115 transitions. [2018-09-28 11:52:03,849 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 115 transitions. [2018-09-28 11:52:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-28 11:52:03,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:52:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:04,034 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 78 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:52:07,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:52:07,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 75 states and 118 transitions. [2018-09-28 11:52:07,392 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 118 transitions. [2018-09-28 11:52:07,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-28 11:52:07,392 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:52:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:08,097 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 78 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:52:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:52:11,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 76 states and 120 transitions. [2018-09-28 11:52:11,870 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 120 transitions. [2018-09-28 11:52:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-28 11:52:11,870 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:52:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 105 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:52:18,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:52:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 77 states and 122 transitions. [2018-09-28 11:52:18,998 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 122 transitions. [2018-09-28 11:52:18,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-28 11:52:18,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:52:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:24,001 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 153 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:52:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:52:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 78 states and 124 transitions. [2018-09-28 11:52:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 124 transitions. [2018-09-28 11:52:35,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-28 11:52:35,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:52:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:37,563 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:52:42,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:52:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 80 states and 127 transitions. [2018-09-28 11:52:42,578 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 127 transitions. [2018-09-28 11:52:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-28 11:52:42,579 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:52:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 91 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:52:47,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:52:47,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 82 states and 130 transitions. [2018-09-28 11:52:47,900 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 130 transitions. [2018-09-28 11:52:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-28 11:52:47,900 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:52:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:48,003 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 91 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:52:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:52:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 83 states and 132 transitions. [2018-09-28 11:52:53,495 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 132 transitions. [2018-09-28 11:52:53,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-28 11:52:53,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:52:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:53,636 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 105 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:52:59,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:52:59,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 84 states and 133 transitions. [2018-09-28 11:52:59,348 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 133 transitions. [2018-09-28 11:52:59,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-28 11:52:59,349 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:52:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:52:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 153 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:53:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:53:16,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 85 states and 135 transitions. [2018-09-28 11:53:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions. [2018-09-28 11:53:16,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-28 11:53:16,250 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:53:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:53:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:53:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:53:26,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 87 states and 138 transitions. [2018-09-28 11:53:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 138 transitions. [2018-09-28 11:53:26,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-28 11:53:26,784 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:53:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:53:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 105 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:53:34,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:53:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 89 states and 141 transitions. [2018-09-28 11:53:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 141 transitions. [2018-09-28 11:53:34,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-28 11:53:34,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:53:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:53:34,323 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 105 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:53:41,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:53:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 90 states and 143 transitions. [2018-09-28 11:53:41,879 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2018-09-28 11:53:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-28 11:53:41,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:53:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:53:41,998 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 153 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:54:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:54:03,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 91 states and 145 transitions. [2018-09-28 11:54:03,949 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 145 transitions. [2018-09-28 11:54:03,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-28 11:54:03,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:54:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:54:15,404 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 210 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:54:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:54:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 92 states and 147 transitions. [2018-09-28 11:54:40,881 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 147 transitions. [2018-09-28 11:54:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-28 11:54:40,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:54:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:54:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:54:55,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:54:55,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 94 states and 150 transitions. [2018-09-28 11:54:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 150 transitions. [2018-09-28 11:54:55,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-28 11:54:55,251 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:54:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:54:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 120 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:55:05,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:55:05,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 96 states and 153 transitions. [2018-09-28 11:55:05,728 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 153 transitions. [2018-09-28 11:55:05,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-28 11:55:05,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:55:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:55:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 120 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:55:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:55:16,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 97 states and 155 transitions. [2018-09-28 11:55:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 155 transitions. [2018-09-28 11:55:16,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-28 11:55:16,408 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:55:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:55:16,481 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 153 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown