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.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/AnnoyingVillain.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2eb0a67 [2018-10-03 09:47:04,043 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-03 09:47:04,045 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-03 09:47:04,058 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-03 09:47:04,058 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-03 09:47:04,059 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-03 09:47:04,060 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-03 09:47:04,062 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-03 09:47:04,063 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-03 09:47:04,064 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-03 09:47:04,065 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-03 09:47:04,065 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-03 09:47:04,066 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-03 09:47:04,067 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-03 09:47:04,068 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-03 09:47:04,069 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-03 09:47:04,070 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-03 09:47:04,072 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-03 09:47:04,074 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-03 09:47:04,075 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-03 09:47:04,076 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-03 09:47:04,078 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-03 09:47:04,080 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-03 09:47:04,080 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-03 09:47:04,081 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-03 09:47:04,082 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-03 09:47:04,083 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-03 09:47:04,083 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-03 09:47:04,084 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-03 09:47:04,085 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-03 09:47:04,086 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-03 09:47:04,086 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-03 09:47:04,087 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-03 09:47:04,087 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-03 09:47:04,088 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-03 09:47:04,089 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-03 09:47:04,089 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-03 09:47:04,117 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-03 09:47:04,118 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-03 09:47:04,118 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-03 09:47:04,119 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-03 09:47:04,119 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-03 09:47:04,119 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-03 09:47:04,120 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-03 09:47:04,120 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-03 09:47:04,120 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-03 09:47:04,120 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-03 09:47:04,120 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-03 09:47:04,121 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-03 09:47:04,121 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-03 09:47:04,121 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-03 09:47:04,121 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-03 09:47:04,121 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-03 09:47:04,121 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-03 09:47:04,122 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-03 09:47:04,122 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-03 09:47:04,122 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-03 09:47:04,122 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-03 09:47:04,122 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-03 09:47:04,123 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-03 09:47:04,123 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-03 09:47:04,123 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-03 09:47:04,123 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-03 09:47:04,123 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-03 09:47:04,124 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-03 09:47:04,124 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-03 09:47:04,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-03 09:47:04,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-03 09:47:04,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-03 09:47:04,203 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-03 09:47:04,203 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-03 09:47:04,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/AnnoyingVillain.bpl [2018-10-03 09:47:04,206 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/AnnoyingVillain.bpl' [2018-10-03 09:47:04,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-03 09:47:04,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-03 09:47:04,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-03 09:47:04,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-03 09:47:04,267 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-03 09:47:04,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,308 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-03 09:47:04,308 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-03 09:47:04,308 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-03 09:47:04,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-03 09:47:04,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-03 09:47:04,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-03 09:47:04,317 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-03 09:47:04,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-03 09:47:04,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-03 09:47:04,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-03 09:47:04,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-03 09:47:04,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 09:47:04" (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 09:47:04,422 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-10-03 09:47:04,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-03 09:47:04,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-03 09:47:04,623 INFO L337 CfgBuilder]: Using library mode [2018-10-03 09:47:04,623 INFO L202 PluginConnector]: Adding new model AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 09:47:04 BoogieIcfgContainer [2018-10-03 09:47:04,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-03 09:47:04,624 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-03 09:47:04,624 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-03 09:47:04,633 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-03 09:47:04,634 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "AnnoyingVillain.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 09:47:04" (1/1) ... [2018-10-03 09:47:04,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-03 09:47:04,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 09:47:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-10-03 09:47:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-10-03 09:47:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-03 09:47:04,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 09:47:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 09:47:04,831 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 09:47:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 09:47:04,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 8 states and 11 transitions. [2018-10-03 09:47:04,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2018-10-03 09:47:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-03 09:47:04,948 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 09:47:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 09:47:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 09:47:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 09:47:06,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 10 states and 17 transitions. [2018-10-03 09:47:06,051 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 17 transitions. [2018-10-03 09:47:06,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-03 09:47:06,052 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 09:47:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 09:47:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 09:47:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 09:47:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 11 states and 21 transitions. [2018-10-03 09:47:07,138 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 21 transitions. [2018-10-03 09:47:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-03 09:47:07,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 09:47:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 09:47:07,217 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 09:47:10,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 09:47:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 13 states and 26 transitions. [2018-10-03 09:47:10,652 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 26 transitions. [2018-10-03 09:47:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-03 09:47:10,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 09:47:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 09:47:10,840 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 09:47:11,353 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 15 [2018-10-03 09:47:13,973 WARN L178 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 16 [2018-10-03 09:47:14,822 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-10-03 09:47:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 09:47:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 15 states and 31 transitions. [2018-10-03 09:47:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 31 transitions. [2018-10-03 09:47:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-03 09:47:20,429 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 09:47:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 09:47:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 09:47:22,680 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 15 [2018-10-03 09:47:24,332 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 16 [2018-10-03 09:47:28,572 WARN L178 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-10-03 09:47:30,621 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-10-03 09:47:42,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 09:47:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 17 states and 36 transitions. [2018-10-03 09:47:42,326 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 36 transitions. [2018-10-03 09:47:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-03 09:47:42,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 09:47:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 09:47:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 09:47:50,774 WARN L178 SmtUtils]: Spent 5.44 s on a formula simplification. DAG size of input: 39 DAG size of output: 15 [2018-10-03 09:47:59,144 WARN L178 SmtUtils]: Spent 5.80 s on a formula simplification that was a NOOP. DAG size: 39 [2018-10-03 09:48:14,574 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-10-03 09:48:29,367 WARN L178 SmtUtils]: Spent 6.46 s on a formula simplification that was a NOOP. DAG size: 51 [2018-10-03 09:48:34,312 WARN L178 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 52 [2018-10-03 09:48:35,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 09:48:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 19 states and 41 transitions. [2018-10-03 09:48:35,555 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 41 transitions. [2018-10-03 09:48:35,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-03 09:48:35,556 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 09:48:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 09:48:39,202 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 09:48:45,212 WARN L178 SmtUtils]: Spent 4.66 s on a formula simplification. DAG size of input: 46 DAG size of output: 15 [2018-10-03 09:48:49,077 WARN L178 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 46 [2018-10-03 09:49:03,975 WARN L178 SmtUtils]: Spent 6.21 s on a formula simplification that was a NOOP. DAG size: 47 [2018-10-03 09:49:26,542 WARN L178 SmtUtils]: Spent 5.81 s on a formula simplification. DAG size of input: 58 DAG size of output: 16 [2018-10-03 09:49:42,035 WARN L178 SmtUtils]: Spent 13.14 s on a formula simplification that was a NOOP. DAG size: 58 [2018-10-03 09:49:49,519 WARN L178 SmtUtils]: Spent 4.72 s on a formula simplification that was a NOOP. DAG size: 59 [2018-10-03 09:49:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 09:49:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 21 states and 46 transitions. [2018-10-03 09:49:56,368 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 46 transitions. [2018-10-03 09:49:56,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-03 09:49:56,369 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 09:49:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 09:50:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 09:50:18,321 WARN L178 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 53 DAG size of output: 15 [2018-10-03 09:50:39,964 WARN L178 SmtUtils]: Spent 8.81 s on a formula simplification that was a NOOP. DAG size: 53 [2018-10-03 09:51:07,215 WARN L178 SmtUtils]: Spent 6.67 s on a formula simplification that was a NOOP. DAG size: 54 [2018-10-03 09:51:26,967 WARN L178 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 64 DAG size of output: 15 [2018-10-03 09:51:55,984 WARN L178 SmtUtils]: Spent 14.40 s on a formula simplification that was a NOOP. DAG size: 64 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown