java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested1.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b2fde6a [2018-09-28 11:40:11,196 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-28 11:40:11,198 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-28 11:40:11,210 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-28 11:40:11,210 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-28 11:40:11,211 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-28 11:40:11,213 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-28 11:40:11,214 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-28 11:40:11,216 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-28 11:40:11,217 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-28 11:40:11,218 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-28 11:40:11,218 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-28 11:40:11,219 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-28 11:40:11,220 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-28 11:40:11,221 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-28 11:40:11,222 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-28 11:40:11,223 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-28 11:40:11,225 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-28 11:40:11,227 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-28 11:40:11,229 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-28 11:40:11,230 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-28 11:40:11,231 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-28 11:40:11,234 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-28 11:40:11,234 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-28 11:40:11,234 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-28 11:40:11,235 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-28 11:40:11,236 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-28 11:40:11,237 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-28 11:40:11,238 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-28 11:40:11,242 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-28 11:40:11,243 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-28 11:40:11,243 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-28 11:40:11,244 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-28 11:40:11,244 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-28 11:40:11,245 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-28 11:40:11,246 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-28 11:40:11,246 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 11:40:11,261 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-28 11:40:11,262 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-28 11:40:11,263 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-28 11:40:11,263 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-28 11:40:11,263 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-28 11:40:11,264 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-28 11:40:11,264 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-28 11:40:11,264 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-28 11:40:11,264 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-28 11:40:11,264 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-28 11:40:11,268 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-28 11:40:11,269 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-28 11:40:11,269 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-28 11:40:11,269 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-28 11:40:11,269 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-28 11:40:11,269 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-28 11:40:11,270 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-28 11:40:11,270 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-28 11:40:11,270 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-28 11:40:11,270 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-28 11:40:11,270 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-28 11:40:11,270 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-28 11:40:11,271 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-28 11:40:11,271 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-28 11:40:11,271 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-28 11:40:11,271 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-28 11:40:11,273 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-28 11:40:11,273 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-28 11:40:11,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-28 11:40:11,273 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-28 11:40:11,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-28 11:40:11,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-28 11:40:11,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-28 11:40:11,358 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-28 11:40:11,359 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-28 11:40:11,359 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested1.i_4.bpl [2018-09-28 11:40:11,360 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested1.i_4.bpl' [2018-09-28 11:40:11,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-28 11:40:11,425 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-28 11:40:11,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-28 11:40:11,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-28 11:40:11,426 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-28 11:40:11,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-28 11:40:11,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-28 11:40:11,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-28 11:40:11,473 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-28 11:40:11,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-28 11:40:11,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-28 11:40:11,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-28 11:40:11,498 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-28 11:40:11,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:40:11" (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 11:40:11,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-28 11:40:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-28 11:40:11,767 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-28 11:40:11,767 INFO L202 PluginConnector]: Adding new model nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:40:11 BoogieIcfgContainer [2018-09-28 11:40:11,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-28 11:40:11,768 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-28 11:40:11,768 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-28 11:40:11,780 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-28 11:40:11,780 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:40:11" (1/1) ... [2018-09-28 11:40:11,794 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 11:40:11,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:11,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-09-28 11:40:11,836 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-09-28 11:40:11,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-28 11:40:11,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:12,000 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 11:40:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:12,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-09-28 11:40:12,328 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-09-28 11:40:12,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-28 11:40:12,329 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:40:12,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:12,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-09-28 11:40:12,948 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-09-28 11:40:12,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:40:12,948 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:40:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:13,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-09-28 11:40:13,515 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-09-28 11:40:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-28 11:40:13,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-28 11:40:14,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2018-09-28 11:40:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-09-28 11:40:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-28 11:40:14,776 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:14,867 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-09-28 11:40:15,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:15,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2018-09-28 11:40:15,935 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-09-28 11:40:15,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-28 11:40:15,936 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-09-28 11:40:17,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2018-09-28 11:40:17,018 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-09-28 11:40:17,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-28 11:40:17,019 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:17,196 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-09-28 11:40:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 35 states and 39 transitions. [2018-09-28 11:40:18,416 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-09-28 11:40:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-28 11:40:18,419 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 70 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-09-28 11:40:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 37 states and 41 transitions. [2018-09-28 11:40:19,519 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-09-28 11:40:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-28 11:40:19,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 120 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-09-28 11:40:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:20,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 39 states and 43 transitions. [2018-09-28 11:40:20,166 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-09-28 11:40:20,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-28 11:40:20,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:20,632 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-28 11:40:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 49 states and 54 transitions. [2018-09-28 11:40:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-09-28 11:40:22,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-28 11:40:22,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:22,576 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 262 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-28 11:40:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:25,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 59 states and 65 transitions. [2018-09-28 11:40:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2018-09-28 11:40:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-28 11:40:25,855 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:26,034 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 322 proven. 12 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2018-09-28 11:40:27,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 61 states and 67 transitions. [2018-09-28 11:40:27,072 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2018-09-28 11:40:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-28 11:40:27,075 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-28 11:40:30,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 71 states and 78 transitions. [2018-09-28 11:40:30,131 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2018-09-28 11:40:30,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-28 11:40:30,132 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 448 proven. 12 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2018-09-28 11:40:32,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:32,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 73 states and 80 transitions. [2018-09-28 11:40:32,242 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2018-09-28 11:40:32,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-09-28 11:40:32,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:32,621 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 0 proven. 694 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-28 11:40:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:36,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 83 states and 91 transitions. [2018-09-28 11:40:36,266 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2018-09-28 11:40:36,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-09-28 11:40:36,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:36,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 574 proven. 12 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2018-09-28 11:40:38,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:38,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 85 states and 93 transitions. [2018-09-28 11:40:38,448 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2018-09-28 11:40:38,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-09-28 11:40:38,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:38,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 0 proven. 988 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2018-09-28 11:40:43,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:43,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 95 states and 104 transitions. [2018-09-28 11:40:43,661 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 104 transitions. [2018-09-28 11:40:43,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-09-28 11:40:43,663 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 700 proven. 12 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2018-09-28 11:40:46,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 97 states and 106 transitions. [2018-09-28 11:40:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2018-09-28 11:40:46,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-09-28 11:40:46,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1478 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-09-28 11:40:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 107 states and 117 transitions. [2018-09-28 11:40:54,021 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2018-09-28 11:40:54,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-09-28 11:40:54,022 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 826 proven. 12 refuted. 0 times theorem prover too weak. 974 trivial. 0 not checked. [2018-09-28 11:40:58,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 109 states and 119 transitions. [2018-09-28 11:40:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2018-09-28 11:40:58,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-09-28 11:40:58,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 0 proven. 1732 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2018-09-28 11:41:08,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:41:08,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 119 states and 130 transitions. [2018-09-28 11:41:08,215 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2018-09-28 11:41:08,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-09-28 11:41:08,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:41:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:41:10,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2272 backedges. 952 proven. 12 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2018-09-28 11:41:14,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:41:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 121 states and 132 transitions. [2018-09-28 11:41:14,039 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 132 transitions. [2018-09-28 11:41:14,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-09-28 11:41:14,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:41:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:41:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2366 backedges. 0 proven. 2182 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-09-28 11:41:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:41:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 131 states and 143 transitions. [2018-09-28 11:41:28,222 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2018-09-28 11:41:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-09-28 11:41:28,222 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:41:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:41:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 1078 proven. 12 refuted. 0 times theorem prover too weak. 1694 trivial. 0 not checked. [2018-09-28 11:41:36,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:41:36,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 133 states and 145 transitions. [2018-09-28 11:41:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2018-09-28 11:41:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-28 11:41:36,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:41:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:41:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 0 proven. 2684 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2018-09-28 11:41:53,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:41:53,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 143 states and 156 transitions. [2018-09-28 11:41:53,969 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 156 transitions. [2018-09-28 11:41:53,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-09-28 11:41:53,970 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:41:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:41:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3348 backedges. 1204 proven. 12 refuted. 0 times theorem prover too weak. 2132 trivial. 0 not checked. [2018-09-28 11:42:04,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:42:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 145 states and 158 transitions. [2018-09-28 11:42:04,115 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 158 transitions. [2018-09-28 11:42:04,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-09-28 11:42:04,116 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:42:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:42:06,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3462 backedges. 0 proven. 3238 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2018-09-28 11:42:26,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:42:26,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 155 states and 169 transitions. [2018-09-28 11:42:26,269 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 169 transitions. [2018-09-28 11:42:26,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-09-28 11:42:26,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:42:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:42:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3964 backedges. 1330 proven. 12 refuted. 0 times theorem prover too weak. 2622 trivial. 0 not checked. [2018-09-28 11:42:39,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:42:39,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 157 states and 171 transitions. [2018-09-28 11:42:39,624 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 171 transitions. [2018-09-28 11:42:39,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-28 11:42:39,625 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:42:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:42:43,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4088 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2018-09-28 11:43:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:43:09,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 167 states and 182 transitions. [2018-09-28 11:43:09,781 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 182 transitions. [2018-09-28 11:43:09,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-09-28 11:43:09,782 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:43:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:43:18,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4632 backedges. 1456 proven. 12 refuted. 0 times theorem prover too weak. 3164 trivial. 0 not checked. [2018-09-28 11:43:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:43:28,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 169 states and 184 transitions. [2018-09-28 11:43:28,640 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 184 transitions. [2018-09-28 11:43:28,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-09-28 11:43:28,643 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:43:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:43:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4766 backedges. 0 proven. 4502 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-09-28 11:44:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:06,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 179 states and 195 transitions. [2018-09-28 11:44:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 195 transitions. [2018-09-28 11:44:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-09-28 11:44:06,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 5352 backedges. 1582 proven. 12 refuted. 0 times theorem prover too weak. 3758 trivial. 0 not checked. [2018-09-28 11:44:28,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 181 states and 197 transitions. [2018-09-28 11:44:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 197 transitions. [2018-09-28 11:44:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-09-28 11:44:28,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:32,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5496 backedges. 0 proven. 5212 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown