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/real-life/Elevator.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2eb0a67 [2018-10-03 10:00:21,428 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-03 10:00:21,430 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-03 10:00:21,443 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-03 10:00:21,443 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-03 10:00:21,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-03 10:00:21,445 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-03 10:00:21,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-03 10:00:21,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-03 10:00:21,450 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-03 10:00:21,451 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-03 10:00:21,452 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-03 10:00:21,452 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-03 10:00:21,454 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-03 10:00:21,455 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-03 10:00:21,456 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-03 10:00:21,457 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-03 10:00:21,459 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-03 10:00:21,461 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-03 10:00:21,462 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-03 10:00:21,464 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-03 10:00:21,465 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-03 10:00:21,467 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-03 10:00:21,468 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-03 10:00:21,468 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-03 10:00:21,469 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-03 10:00:21,470 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-03 10:00:21,471 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-03 10:00:21,472 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-03 10:00:21,473 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-03 10:00:21,473 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-03 10:00:21,474 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-03 10:00:21,474 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-03 10:00:21,475 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-03 10:00:21,476 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-03 10:00:21,477 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-03 10:00:21,477 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 [2018-10-03 10:00:21,493 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-03 10:00:21,493 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-03 10:00:21,494 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-03 10:00:21,494 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-03 10:00:21,495 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-03 10:00:21,495 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-03 10:00:21,495 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-03 10:00:21,496 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-03 10:00:21,496 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-03 10:00:21,496 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-03 10:00:21,496 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-03 10:00:21,496 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-03 10:00:21,497 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-03 10:00:21,497 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-03 10:00:21,497 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-03 10:00:21,497 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-03 10:00:21,497 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-03 10:00:21,498 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-03 10:00:21,498 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-03 10:00:21,498 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-03 10:00:21,498 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-03 10:00:21,498 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-03 10:00:21,499 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-03 10:00:21,499 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-03 10:00:21,499 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-03 10:00:21,499 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-03 10:00:21,499 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-03 10:00:21,500 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-03 10:00:21,500 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-03 10:00:21,500 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-03 10:00:21,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-03 10:00:21,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-03 10:00:21,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-03 10:00:21,564 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-03 10:00:21,565 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-03 10:00:21,565 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator.bpl [2018-10-03 10:00:21,566 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator.bpl' [2018-10-03 10:00:21,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-03 10:00:21,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-03 10:00:21,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-03 10:00:21,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-03 10:00:21,634 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-03 10:00:21,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (1/1) ... [2018-10-03 10:00:21,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (1/1) ... [2018-10-03 10:00:21,678 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-03 10:00:21,678 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-03 10:00:21,678 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-03 10:00:21,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-03 10:00:21,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-03 10:00:21,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-03 10:00:21,682 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-03 10:00:21,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (1/1) ... [2018-10-03 10:00:21,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (1/1) ... [2018-10-03 10:00:21,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (1/1) ... [2018-10-03 10:00:21,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (1/1) ... [2018-10-03 10:00:21,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (1/1) ... [2018-10-03 10:00:21,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (1/1) ... [2018-10-03 10:00:21,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (1/1) ... [2018-10-03 10:00:21,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-03 10:00:21,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-03 10:00:21,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-03 10:00:21,730 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-03 10:00:21,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:00:21" (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 [2018-10-03 10:00:21,812 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Elevator given in one single declaration [2018-10-03 10:00:21,813 INFO L130 BoogieDeclarations]: Found specification of procedure Elevator [2018-10-03 10:00:21,813 INFO L138 BoogieDeclarations]: Found implementation of procedure Elevator [2018-10-03 10:00:23,528 INFO L337 CfgBuilder]: Using library mode [2018-10-03 10:00:23,529 INFO L202 PluginConnector]: Adding new model Elevator.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 10:00:23 BoogieIcfgContainer [2018-10-03 10:00:23,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-03 10:00:23,530 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-03 10:00:23,530 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-03 10:00:23,539 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-03 10:00:23,539 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Elevator.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 10:00:23" (1/1) ... [2018-10-03 10:00:23,551 INFO L106 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-03 10:00:23,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:00:23,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-10-03 10:00:23,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-10-03 10:00:23,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-03 10:00:23,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:00:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:00:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:00:24,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:00:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2018-10-03 10:00:24,255 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-10-03 10:00:24,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-03 10:00:24,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:00:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:00:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:00:25,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:00:25,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 9 states and 13 transitions. [2018-10-03 10:00:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2018-10-03 10:00:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-03 10:00:25,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:00:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:00:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:00:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:00:26,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 13 states and 25 transitions. [2018-10-03 10:00:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 25 transitions. [2018-10-03 10:00:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-03 10:00:26,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:00:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:00:27,336 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:00:29,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:00:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 17 states and 36 transitions. [2018-10-03 10:00:29,066 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 36 transitions. [2018-10-03 10:00:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-03 10:00:29,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:00:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:00:30,020 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:00:31,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:00:31,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 44 transitions. [2018-10-03 10:00:31,548 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 44 transitions. [2018-10-03 10:00:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-03 10:00:31,549 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:00:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:00:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:00:39,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:00:39,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 26 states and 75 transitions. [2018-10-03 10:00:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 75 transitions. [2018-10-03 10:00:39,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-03 10:00:39,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:00:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:00:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:00:53,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:00:53,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 34 states and 110 transitions. [2018-10-03 10:00:53,114 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 110 transitions. [2018-10-03 10:00:53,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-03 10:00:53,115 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:00:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:00:54,404 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:01:01,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:01:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 38 states and 123 transitions. [2018-10-03 10:01:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 123 transitions. [2018-10-03 10:01:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-03 10:01:01,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:01:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:01:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:01:27,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:01:27,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 44 states and 154 transitions. [2018-10-03 10:01:27,817 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 154 transitions. [2018-10-03 10:01:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-03 10:01:27,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:01:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:01:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:01:40,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:01:40,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 46 states and 163 transitions. [2018-10-03 10:01:40,212 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 163 transitions. [2018-10-03 10:01:40,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-03 10:01:40,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:01:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:02:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:05,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:05,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 60 states and 234 transitions. [2018-10-03 10:04:05,888 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 234 transitions. [2018-10-03 10:04:05,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-03 10:04:05,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:26,114 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown