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/Luxembourg-sophisticated.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-09-30 21:56:18,312 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 21:56:18,314 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 21:56:18,330 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 21:56:18,330 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 21:56:18,331 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 21:56:18,332 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 21:56:18,334 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 21:56:18,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 21:56:18,337 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 21:56:18,338 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 21:56:18,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 21:56:18,339 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 21:56:18,340 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 21:56:18,341 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 21:56:18,342 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 21:56:18,343 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 21:56:18,344 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 21:56:18,346 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 21:56:18,348 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 21:56:18,349 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 21:56:18,350 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 21:56:18,353 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 21:56:18,353 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 21:56:18,353 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 21:56:18,354 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 21:56:18,355 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 21:56:18,356 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 21:56:18,357 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 21:56:18,358 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 21:56:18,358 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 21:56:18,359 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 21:56:18,360 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 21:56:18,360 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 21:56:18,361 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 21:56:18,362 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 21:56:18,362 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 [2018-09-30 21:56:18,391 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 21:56:18,392 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 21:56:18,393 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 21:56:18,393 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 21:56:18,393 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 21:56:18,394 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 21:56:18,394 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 21:56:18,394 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 21:56:18,394 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 21:56:18,395 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 21:56:18,395 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 21:56:18,395 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 21:56:18,395 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 21:56:18,395 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 21:56:18,395 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 21:56:18,396 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 21:56:18,396 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 21:56:18,396 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 21:56:18,396 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 21:56:18,397 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 21:56:18,397 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 21:56:18,397 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 21:56:18,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:56:18,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 21:56:18,398 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 21:56:18,398 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 21:56:18,398 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 21:56:18,398 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 21:56:18,399 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 21:56:18,399 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 21:56:18,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 21:56:18,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 21:56:18,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 21:56:18,480 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 21:56:18,480 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 21:56:18,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl [2018-09-30 21:56:18,481 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl' [2018-09-30 21:56:18,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 21:56:18,531 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 21:56:18,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 21:56:18,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 21:56:18,532 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 21:56:18,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,571 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 21:56:18,571 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 21:56:18,571 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 21:56:18,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 21:56:18,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 21:56:18,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 21:56:18,575 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 21:56:18,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 21:56:18,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 21:56:18,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 21:56:18,597 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 21:56:18,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:56:18" (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 [2018-09-30 21:56:18,675 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-30 21:56:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-30 21:56:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-30 21:56:18,921 INFO L345 CfgBuilder]: Using library mode [2018-09-30 21:56:18,921 INFO L202 PluginConnector]: Adding new model Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:56:18 BoogieIcfgContainer [2018-09-30 21:56:18,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 21:56:18,922 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 21:56:18,922 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 21:56:18,934 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 21:56:18,934 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:56:18" (1/1) ... [2018-09-30 21:56:18,948 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 21:56:18,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:18,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-09-30 21:56:18,982 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-30 21:56:18,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 21:56:18,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:19,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:19,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-09-30 21:56:19,450 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-09-30 21:56:19,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 21:56:19,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:19,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:19,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:19,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-09-30 21:56:19,804 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-09-30 21:56:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 21:56:19,805 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:19,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-09-30 21:56:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-09-30 21:56:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 21:56:20,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:20,626 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:21,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:21,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-09-30 21:56:21,304 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-09-30 21:56:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-30 21:56:21,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:21,412 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:21,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-09-30 21:56:21,672 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-09-30 21:56:21,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 21:56:21,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:21,834 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:22,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-09-30 21:56:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-09-30 21:56:22,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-30 21:56:22,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:22,520 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:23,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:23,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-09-30 21:56:23,439 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-09-30 21:56:23,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-30 21:56:23,440 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:24,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-09-30 21:56:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-09-30 21:56:24,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-30 21:56:24,229 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:25,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:25,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-09-30 21:56:25,085 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-09-30 21:56:25,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-30 21:56:25,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:26,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:26,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-09-30 21:56:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-09-30 21:56:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 21:56:26,841 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 17 states and 40 transitions. [2018-09-30 21:56:29,175 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 40 transitions. [2018-09-30 21:56:29,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 21:56:29,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:56:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:56:35,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:56:35,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 18 states and 43 transitions. [2018-09-30 21:56:35,856 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 43 transitions. [2018-09-30 21:56:35,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 21:56:35,857 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:56:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:57:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:57:03,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:57:03,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 19 states and 46 transitions. [2018-09-30 21:57:03,557 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 46 transitions. [2018-09-30 21:57:03,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 21:57:03,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:57:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 20 states and 49 transitions. [2018-09-30 21:59:54,281 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 49 transitions. [2018-09-30 21:59:54,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-30 21:59:54,281 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown