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/20170319-ConjunctivePathPrograms/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-133090d [2018-10-04 10:37:03,134 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 10:37:03,137 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 10:37:03,155 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 10:37:03,155 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 10:37:03,156 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 10:37:03,158 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 10:37:03,161 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 10:37:03,165 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 10:37:03,166 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 10:37:03,166 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 10:37:03,168 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 10:37:03,169 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 10:37:03,170 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 10:37:03,173 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 10:37:03,173 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 10:37:03,175 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 10:37:03,184 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 10:37:03,186 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 10:37:03,187 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 10:37:03,188 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 10:37:03,190 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 10:37:03,192 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 10:37:03,192 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 10:37:03,192 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 10:37:03,193 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 10:37:03,194 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 10:37:03,194 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 10:37:03,195 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 10:37:03,196 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 10:37:03,196 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 10:37:03,197 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 10:37:03,197 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 10:37:03,197 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 10:37:03,198 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 10:37:03,199 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 10:37:03,199 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 [2018-10-04 10:37:03,214 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 10:37:03,214 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 10:37:03,215 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 10:37:03,215 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 10:37:03,216 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 10:37:03,216 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 10:37:03,216 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 10:37:03,216 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 10:37:03,217 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 10:37:03,217 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 10:37:03,217 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 10:37:03,217 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 10:37:03,217 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 10:37:03,218 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 10:37:03,218 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 10:37:03,218 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 10:37:03,218 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 10:37:03,218 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 10:37:03,218 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 10:37:03,219 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 10:37:03,219 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 10:37:03,219 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 10:37:03,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 10:37:03,219 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 10:37:03,220 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 10:37:03,220 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 10:37:03,220 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 10:37:03,220 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 10:37:03,220 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 10:37:03,221 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 10:37:03,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 10:37:03,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 10:37:03,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 10:37:03,288 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 10:37:03,289 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 10:37:03,290 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl [2018-10-04 10:37:03,290 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested1.i_4.bplTransformedIcfg_BEv2_12.bpl' [2018-10-04 10:37:03,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 10:37:03,337 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 10:37:03,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 10:37:03,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 10:37:03,338 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 10:37:03,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 10:37:03,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 10:37:03,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 10:37:03,378 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 10:37:03,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 10:37:03,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 10:37:03,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 10:37:03,397 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 10:37:03,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:37:03" (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 [2018-10-04 10:37:03,468 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-04 10:37:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 10:37:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 10:37:03,736 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 10:37:03,737 INFO L202 PluginConnector]: Adding new model nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 10:37:03 BoogieIcfgContainer [2018-10-04 10:37:03,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 10:37:03,738 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 10:37:03,738 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 10:37:03,751 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 10:37:03,751 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested1.i_4.bplTransformedIcfg_BEv2_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 10:37:03" (1/1) ... [2018-10-04 10:37:03,771 INFO L104 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 10:37:03,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:03,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 5 states and 7 transitions. [2018-10-04 10:37:03,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 7 transitions. [2018-10-04 10:37:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 10:37:03,820 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:37:04,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:04,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 6 states and 8 transitions. [2018-10-04 10:37:04,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 8 transitions. [2018-10-04 10:37:04,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 10:37:04,240 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:04,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:37:04,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:04,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-10-04 10:37:04,454 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-10-04 10:37:04,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 10:37:04,455 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:04,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:37:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2018-10-04 10:37:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2018-10-04 10:37:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-04 10:37:04,968 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:05,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-04 10:37:06,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:06,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-10-04 10:37:06,208 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-10-04 10:37:06,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-04 10:37:06,209 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-04 10:37:06,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2018-10-04 10:37:06,503 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-10-04 10:37:06,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 10:37:06,504 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-04 10:37:06,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:06,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2018-10-04 10:37:06,946 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2018-10-04 10:37:06,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 10:37:06,946 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-04 10:37:07,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:07,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2018-10-04 10:37:07,772 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2018-10-04 10:37:07,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-04 10:37:07,773 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:07,815 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-04 10:37:08,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:08,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2018-10-04 10:37:08,398 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-10-04 10:37:08,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-04 10:37:08,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-04 10:37:09,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:09,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2018-10-04 10:37:09,073 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2018-10-04 10:37:09,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-04 10:37:09,074 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:09,118 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-10-04 10:37:09,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:09,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2018-10-04 10:37:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2018-10-04 10:37:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-04 10:37:09,346 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-10-04 10:37:09,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:09,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2018-10-04 10:37:09,692 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-10-04 10:37:09,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-04 10:37:09,693 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:09,772 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-04 10:37:10,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:10,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2018-10-04 10:37:10,615 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2018-10-04 10:37:10,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-04 10:37:10,616 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 79 proven. 10 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-10-04 10:37:11,340 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 25 new depth: 22 [2018-10-04 10:37:11,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:11,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2018-10-04 10:37:11,686 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-10-04 10:37:11,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-04 10:37:11,687 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 94 proven. 15 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-10-04 10:37:12,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:12,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2018-10-04 10:37:12,149 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-10-04 10:37:12,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-04 10:37:12,150 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 109 proven. 21 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-10-04 10:37:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2018-10-04 10:37:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2018-10-04 10:37:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-04 10:37:12,616 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:12,675 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 176 proven. 10 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-04 10:37:12,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2018-10-04 10:37:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-10-04 10:37:12,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-04 10:37:12,996 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 194 proven. 15 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-04 10:37:13,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2018-10-04 10:37:13,572 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-10-04 10:37:13,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-04 10:37:13,573 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 212 proven. 21 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-04 10:37:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:14,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 34 states and 39 transitions. [2018-10-04 10:37:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-10-04 10:37:14,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-04 10:37:14,005 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 259 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-10-04 10:37:15,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 40 states and 46 transitions. [2018-10-04 10:37:15,593 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-10-04 10:37:15,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-04 10:37:15,594 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 394 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-04 10:37:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 46 states and 53 transitions. [2018-10-04 10:37:19,043 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-10-04 10:37:19,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-04 10:37:19,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 407 proven. 10 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-10-04 10:37:20,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:20,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 47 states and 54 transitions. [2018-10-04 10:37:20,040 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2018-10-04 10:37:20,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-04 10:37:20,041 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 438 proven. 15 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-10-04 10:37:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 48 states and 55 transitions. [2018-10-04 10:37:20,669 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2018-10-04 10:37:20,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-04 10:37:20,671 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:20,761 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 469 proven. 21 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-10-04 10:37:21,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:21,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 49 states and 56 transitions. [2018-10-04 10:37:21,473 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2018-10-04 10:37:21,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-04 10:37:21,475 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 422 proven. 10 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-10-04 10:37:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:23,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 50 states and 57 transitions. [2018-10-04 10:37:23,113 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2018-10-04 10:37:23,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-04 10:37:23,116 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 456 proven. 15 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-10-04 10:37:24,527 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 42 new depth: 40 [2018-10-04 10:37:24,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 51 states and 58 transitions. [2018-10-04 10:37:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2018-10-04 10:37:24,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-04 10:37:24,893 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 490 proven. 21 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-10-04 10:37:25,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 52 states and 59 transitions. [2018-10-04 10:37:25,502 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-10-04 10:37:25,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-04 10:37:25,503 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 355 proven. 10 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2018-10-04 10:37:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2018-10-04 10:37:26,194 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2018-10-04 10:37:26,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-04 10:37:26,195 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:26,274 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 392 proven. 15 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2018-10-04 10:37:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2018-10-04 10:37:26,908 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2018-10-04 10:37:26,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-04 10:37:26,909 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:26,964 INFO L134 CoverageAnalysis]: Checked inductivity of 967 backedges. 429 proven. 21 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2018-10-04 10:37:27,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 55 states and 62 transitions. [2018-10-04 10:37:27,592 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2018-10-04 10:37:27,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-04 10:37:27,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:27,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 206 proven. 10 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2018-10-04 10:37:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 56 states and 63 transitions. [2018-10-04 10:37:28,781 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2018-10-04 10:37:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-10-04 10:37:28,782 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 246 proven. 15 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2018-10-04 10:37:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 57 states and 64 transitions. [2018-10-04 10:37:29,501 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-10-04 10:37:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-04 10:37:29,501 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:29,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 286 proven. 21 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2018-10-04 10:37:30,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 58 states and 65 transitions. [2018-10-04 10:37:30,380 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2018-10-04 10:37:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-04 10:37:30,381 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1149 backedges. 0 proven. 981 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2018-10-04 10:37:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 67 states and 75 transitions. [2018-10-04 10:37:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2018-10-04 10:37:32,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-04 10:37:32,810 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 391 proven. 28 refuted. 0 times theorem prover too weak. 1149 trivial. 0 not checked. [2018-10-04 10:37:33,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 68 states and 76 transitions. [2018-10-04 10:37:33,637 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2018-10-04 10:37:33,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-04 10:37:33,638 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 764 proven. 28 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2018-10-04 10:37:35,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:35,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 69 states and 77 transitions. [2018-10-04 10:37:35,006 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2018-10-04 10:37:35,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-04 10:37:35,007 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1681 backedges. 991 proven. 28 refuted. 0 times theorem prover too weak. 662 trivial. 0 not checked. [2018-10-04 10:37:35,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:35,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 70 states and 78 transitions. [2018-10-04 10:37:35,938 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2018-10-04 10:37:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-04 10:37:35,939 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 1072 proven. 28 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2018-10-04 10:37:37,657 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 62 new depth: 61 [2018-10-04 10:37:38,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:38,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 71 states and 79 transitions. [2018-10-04 10:37:38,054 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2018-10-04 10:37:38,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-04 10:37:38,054 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1798 backedges. 1007 proven. 28 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2018-10-04 10:37:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:39,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 72 states and 80 transitions. [2018-10-04 10:37:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2018-10-04 10:37:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-04 10:37:39,455 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1858 backedges. 796 proven. 28 refuted. 0 times theorem prover too weak. 1034 trivial. 0 not checked. [2018-10-04 10:37:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:40,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 73 states and 81 transitions. [2018-10-04 10:37:40,371 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2018-10-04 10:37:40,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-04 10:37:40,371 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:40,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 0 proven. 1675 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2018-10-04 10:37:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 82 states and 91 transitions. [2018-10-04 10:37:43,560 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2018-10-04 10:37:43,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-04 10:37:43,561 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2451 backedges. 942 proven. 28 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2018-10-04 10:37:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:44,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 83 states and 92 transitions. [2018-10-04 10:37:44,523 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2018-10-04 10:37:44,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-04 10:37:44,524 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2521 backedges. 512 proven. 28 refuted. 0 times theorem prover too weak. 1981 trivial. 0 not checked. [2018-10-04 10:37:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:45,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 84 states and 93 transitions. [2018-10-04 10:37:45,881 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2018-10-04 10:37:45,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-04 10:37:45,881 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2592 backedges. 575 proven. 36 refuted. 0 times theorem prover too weak. 1981 trivial. 0 not checked. [2018-10-04 10:37:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 85 states and 94 transitions. [2018-10-04 10:37:47,302 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2018-10-04 10:37:47,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-04 10:37:47,302 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:47,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 638 proven. 45 refuted. 0 times theorem prover too weak. 1981 trivial. 0 not checked. [2018-10-04 10:37:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 86 states and 94 transitions. [2018-10-04 10:37:48,405 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2018-10-04 10:37:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-04 10:37:48,406 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2737 backedges. 1193 proven. 36 refuted. 0 times theorem prover too weak. 1508 trivial. 0 not checked. [2018-10-04 10:37:49,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:49,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 87 states and 95 transitions. [2018-10-04 10:37:49,397 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2018-10-04 10:37:49,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-04 10:37:49,398 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2811 backedges. 1258 proven. 45 refuted. 0 times theorem prover too weak. 1508 trivial. 0 not checked. [2018-10-04 10:37:50,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 88 states and 95 transitions. [2018-10-04 10:37:50,402 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2018-10-04 10:37:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-04 10:37:50,402 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:50,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2886 backedges. 1611 proven. 36 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2018-10-04 10:37:51,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:51,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 89 states and 96 transitions. [2018-10-04 10:37:51,413 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 96 transitions. [2018-10-04 10:37:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-04 10:37:51,413 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2962 backedges. 1678 proven. 45 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2018-10-04 10:37:52,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 90 states and 96 transitions. [2018-10-04 10:37:52,742 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2018-10-04 10:37:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-04 10:37:52,743 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:53,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3039 backedges. 1829 proven. 36 refuted. 0 times theorem prover too weak. 1174 trivial. 0 not checked. [2018-10-04 10:37:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:37:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 91 states and 97 transitions. [2018-10-04 10:37:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2018-10-04 10:37:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-04 10:37:53,964 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:37:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:37:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3117 backedges. 1898 proven. 45 refuted. 0 times theorem prover too weak. 1174 trivial. 0 not checked. [2018-10-04 10:38:02,691 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 82 new depth: 81 [2018-10-04 10:38:03,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 92 states and 97 transitions. [2018-10-04 10:38:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2018-10-04 10:38:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-04 10:38:03,134 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:03,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 2832 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2018-10-04 10:38:07,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:07,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 102 states and 108 transitions. [2018-10-04 10:38:07,020 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 108 transitions. [2018-10-04 10:38:07,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-04 10:38:07,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3961 backedges. 0 proven. 3561 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2018-10-04 10:38:11,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:11,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 112 states and 119 transitions. [2018-10-04 10:38:11,635 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 119 transitions. [2018-10-04 10:38:11,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-04 10:38:11,636 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:12,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4808 backedges. 0 proven. 4372 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2018-10-04 10:38:15,317 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 102 new depth: 102 [2018-10-04 10:38:17,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:17,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 122 states and 130 transitions. [2018-10-04 10:38:17,750 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 130 transitions. [2018-10-04 10:38:17,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-04 10:38:17,751 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5737 backedges. 0 proven. 5265 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-04 10:38:23,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:23,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 132 states and 141 transitions. [2018-10-04 10:38:23,255 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 141 transitions. [2018-10-04 10:38:23,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-04 10:38:23,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6748 backedges. 3775 proven. 36 refuted. 0 times theorem prover too weak. 2937 trivial. 0 not checked. [2018-10-04 10:38:24,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:24,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 133 states and 142 transitions. [2018-10-04 10:38:24,925 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 142 transitions. [2018-10-04 10:38:24,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-04 10:38:24,926 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:25,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6864 backedges. 3882 proven. 45 refuted. 0 times theorem prover too weak. 2937 trivial. 0 not checked. [2018-10-04 10:38:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:26,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 134 states and 142 transitions. [2018-10-04 10:38:26,647 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 142 transitions. [2018-10-04 10:38:26,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-04 10:38:26,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6981 backedges. 3993 proven. 36 refuted. 0 times theorem prover too weak. 2952 trivial. 0 not checked. [2018-10-04 10:38:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 135 states and 143 transitions. [2018-10-04 10:38:28,389 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 143 transitions. [2018-10-04 10:38:28,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-04 10:38:28,390 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7099 backedges. 4102 proven. 45 refuted. 0 times theorem prover too weak. 2952 trivial. 0 not checked. [2018-10-04 10:38:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:30,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 136 states and 143 transitions. [2018-10-04 10:38:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 143 transitions. [2018-10-04 10:38:30,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-04 10:38:30,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 7218 backedges. 4011 proven. 36 refuted. 0 times theorem prover too weak. 3171 trivial. 0 not checked. [2018-10-04 10:38:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 137 states and 144 transitions. [2018-10-04 10:38:32,081 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2018-10-04 10:38:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-04 10:38:32,082 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:32,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7338 backedges. 4122 proven. 45 refuted. 0 times theorem prover too weak. 3171 trivial. 0 not checked. [2018-10-04 10:38:34,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:34,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 138 states and 144 transitions. [2018-10-04 10:38:34,048 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 144 transitions. [2018-10-04 10:38:34,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-04 10:38:34,049 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 7459 backedges. 3829 proven. 36 refuted. 0 times theorem prover too weak. 3594 trivial. 0 not checked. [2018-10-04 10:38:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 139 states and 145 transitions. [2018-10-04 10:38:35,740 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 145 transitions. [2018-10-04 10:38:35,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-04 10:38:35,740 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 7581 backedges. 3942 proven. 45 refuted. 0 times theorem prover too weak. 3594 trivial. 0 not checked. [2018-10-04 10:38:37,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:37,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 140 states and 145 transitions. [2018-10-04 10:38:37,478 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 145 transitions. [2018-10-04 10:38:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-04 10:38:37,479 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 7704 backedges. 3447 proven. 36 refuted. 0 times theorem prover too weak. 4221 trivial. 0 not checked. [2018-10-04 10:38:39,721 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 126 new depth: 126 [2018-10-04 10:38:40,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:40,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 141 states and 146 transitions. [2018-10-04 10:38:40,487 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 146 transitions. [2018-10-04 10:38:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-04 10:38:40,488 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7828 backedges. 3562 proven. 45 refuted. 0 times theorem prover too weak. 4221 trivial. 0 not checked. [2018-10-04 10:38:42,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:42,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 142 states and 146 transitions. [2018-10-04 10:38:42,338 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 146 transitions. [2018-10-04 10:38:42,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-04 10:38:42,339 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 7953 backedges. 2865 proven. 36 refuted. 0 times theorem prover too weak. 5052 trivial. 0 not checked. [2018-10-04 10:38:44,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 143 states and 147 transitions. [2018-10-04 10:38:44,348 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 147 transitions. [2018-10-04 10:38:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-04 10:38:44,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8079 backedges. 2982 proven. 45 refuted. 0 times theorem prover too weak. 5052 trivial. 0 not checked. [2018-10-04 10:38:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 144 states and 147 transitions. [2018-10-04 10:38:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 147 transitions. [2018-10-04 10:38:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-04 10:38:46,129 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 8206 backedges. 2083 proven. 36 refuted. 0 times theorem prover too weak. 6087 trivial. 0 not checked. [2018-10-04 10:38:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:48,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 145 states and 148 transitions. [2018-10-04 10:38:48,076 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 148 transitions. [2018-10-04 10:38:48,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-04 10:38:48,077 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:48,171 INFO L134 CoverageAnalysis]: Checked inductivity of 8334 backedges. 2202 proven. 45 refuted. 0 times theorem prover too weak. 6087 trivial. 0 not checked. [2018-10-04 10:38:49,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:49,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 146 states and 148 transitions. [2018-10-04 10:38:49,883 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 148 transitions. [2018-10-04 10:38:49,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-04 10:38:49,884 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 8463 backedges. 1101 proven. 36 refuted. 0 times theorem prover too weak. 7326 trivial. 0 not checked. [2018-10-04 10:38:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 147 states and 149 transitions. [2018-10-04 10:38:51,832 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 149 transitions. [2018-10-04 10:38:51,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-04 10:38:51,833 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:51,885 INFO L134 CoverageAnalysis]: Checked inductivity of 8593 backedges. 1222 proven. 45 refuted. 0 times theorem prover too weak. 7326 trivial. 0 not checked. [2018-10-04 10:38:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:38:53,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 148 states and 149 transitions. [2018-10-04 10:38:53,770 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 149 transitions. [2018-10-04 10:38:53,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-04 10:38:53,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:38:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:38:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 8724 backedges. 0 proven. 8064 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2018-10-04 10:39:00,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:39:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 160 states and 161 transitions. [2018-10-04 10:39:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 161 transitions. [2018-10-04 10:39:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-10-04 10:39:00,470 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:39:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:39:00,714 INFO L134 CoverageAnalysis]: Checked inductivity of 10244 backedges. 0 proven. 9529 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2018-10-04 10:39:05,916 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 149 new depth: 149 [2018-10-04 10:39:09,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:39:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 172 states and 173 transitions. [2018-10-04 10:39:09,243 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 173 transitions. [2018-10-04 10:39:09,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-10-04 10:39:09,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:39:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:39:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 11886 backedges. 0 proven. 11116 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2018-10-04 10:39:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:39:17,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 184 states and 185 transitions. [2018-10-04 10:39:17,685 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 185 transitions. [2018-10-04 10:39:17,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-04 10:39:17,687 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:39:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:39:18,037 INFO L134 CoverageAnalysis]: Checked inductivity of 13650 backedges. 0 proven. 12825 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2018-10-04 10:39:25,127 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 172 new depth: 172 [2018-10-04 10:39:28,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:39:28,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 196 states and 197 transitions. [2018-10-04 10:39:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 197 transitions. [2018-10-04 10:39:28,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-04 10:39:28,499 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:39:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:39:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 15536 backedges. 0 proven. 14656 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2018-10-04 10:39:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:39:39,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 208 states and 209 transitions. [2018-10-04 10:39:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 209 transitions. [2018-10-04 10:39:39,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-10-04 10:39:39,324 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:39:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:39:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 17544 backedges. 0 proven. 16609 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2018-10-04 10:39:49,610 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 195 new depth: 195 [2018-10-04 10:39:53,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:39:53,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 220 states and 221 transitions. [2018-10-04 10:39:53,087 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 221 transitions. [2018-10-04 10:39:53,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-10-04 10:39:53,088 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:39:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:39:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 19674 backedges. 0 proven. 18684 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-10-04 10:40:05,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:40:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 232 states and 233 transitions. [2018-10-04 10:40:05,587 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 233 transitions. [2018-10-04 10:40:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-10-04 10:40:05,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:40:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:40:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 21926 backedges. 0 proven. 20881 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2018-10-04 10:40:18,999 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 218 new depth: 218 [2018-10-04 10:40:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:40:21,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 244 states and 245 transitions. [2018-10-04 10:40:21,973 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 245 transitions. [2018-10-04 10:40:21,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-10-04 10:40:21,975 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:40:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:40:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 24300 backedges. 0 proven. 23200 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2018-10-04 10:40:36,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:40:36,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 256 states and 257 transitions. [2018-10-04 10:40:36,889 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 257 transitions. [2018-10-04 10:40:36,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-10-04 10:40:36,890 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:40:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:40:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 26796 backedges. 0 proven. 25641 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2018-10-04 10:40:52,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:40:52,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 268 states and 269 transitions. [2018-10-04 10:40:52,218 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 269 transitions. [2018-10-04 10:40:52,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-10-04 10:40:52,219 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:40:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:40:52,769 INFO L134 CoverageAnalysis]: Checked inductivity of 29414 backedges. 0 proven. 28204 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2018-10-04 10:41:00,642 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 244 new depth: 243 [2018-10-04 10:41:10,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:41:10,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 280 states and 281 transitions. [2018-10-04 10:41:10,657 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 281 transitions. [2018-10-04 10:41:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-10-04 10:41:10,659 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:41:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:41:11,268 INFO L134 CoverageAnalysis]: Checked inductivity of 32154 backedges. 0 proven. 30889 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown