java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit02.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-133090d [2018-10-04 10:48:07,965 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 10:48:07,967 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 10:48:07,979 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 10:48:07,979 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 10:48:07,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 10:48:07,981 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 10:48:07,983 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 10:48:07,985 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 10:48:07,986 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 10:48:07,987 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 10:48:07,987 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 10:48:07,988 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 10:48:07,989 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 10:48:07,990 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 10:48:07,991 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 10:48:07,992 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 10:48:07,994 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 10:48:07,996 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 10:48:07,997 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 10:48:07,998 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 10:48:08,000 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 10:48:08,002 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 10:48:08,002 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 10:48:08,003 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 10:48:08,004 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 10:48:08,005 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 10:48:08,006 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 10:48:08,007 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 10:48:08,008 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 10:48:08,008 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 10:48:08,009 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 10:48:08,009 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 10:48:08,009 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 10:48:08,010 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 10:48:08,011 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 10:48:08,011 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 10:48:08,038 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 10:48:08,042 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 10:48:08,042 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 10:48:08,043 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 10:48:08,043 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 10:48:08,043 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 10:48:08,047 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 10:48:08,047 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 10:48:08,047 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 10:48:08,047 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 10:48:08,048 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 10:48:08,048 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 10:48:08,048 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 10:48:08,048 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 10:48:08,048 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 10:48:08,049 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 10:48:08,049 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 10:48:08,049 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 10:48:08,049 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 10:48:08,049 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 10:48:08,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 10:48:08,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 10:48:08,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 10:48:08,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 10:48:08,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 10:48:08,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 10:48:08,051 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 10:48:08,052 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 10:48:08,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 10:48:08,052 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 10:48:08,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 10:48:08,112 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 10:48:08,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 10:48:08,117 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 10:48:08,118 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 10:48:08,119 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit02.bpl [2018-10-04 10:48:08,119 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit02.bpl' [2018-10-04 10:48:08,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 10:48:08,171 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 10:48:08,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 10:48:08,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 10:48:08,172 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 10:48:08,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 10:48:08,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 10:48:08,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 10:48:08,214 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 10:48:08,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 10:48:08,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 10:48:08,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 10:48:08,238 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 10:48:08,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 10:48:08" (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 10:48:08,313 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-04 10:48:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 10:48:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 10:48:08,843 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 10:48:08,844 INFO L202 PluginConnector]: Adding new model ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 10:48:08 BoogieIcfgContainer [2018-10-04 10:48:08,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 10:48:08,845 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 10:48:08,845 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 10:48:08,864 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 10:48:08,865 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 10:48:08" (1/1) ... [2018-10-04 10:48:08,878 INFO L104 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 10:48:08,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:08,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2018-10-04 10:48:08,911 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2018-10-04 10:48:08,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 10:48:08,914 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:09,106 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 10:48:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-10-04 10:48:09,297 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-10-04 10:48:09,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 10:48:09,297 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:09,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:11,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:11,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-10-04 10:48:11,191 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-10-04 10:48:11,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 10:48:11,192 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:12,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2018-10-04 10:48:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2018-10-04 10:48:12,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 10:48:12,196 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:13,234 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 22 new depth: 11 [2018-10-04 10:48:13,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2018-10-04 10:48:13,713 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-10-04 10:48:13,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 10:48:13,714 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2018-10-04 10:48:15,970 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2018-10-04 10:48:15,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 10:48:15,971 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:16,295 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:18,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2018-10-04 10:48:18,253 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2018-10-04 10:48:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-04 10:48:18,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:19,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2018-10-04 10:48:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2018-10-04 10:48:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-04 10:48:19,966 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:20,331 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:21,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:21,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2018-10-04 10:48:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2018-10-04 10:48:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-04 10:48:21,981 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:24,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:24,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 58 transitions. [2018-10-04 10:48:24,190 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2018-10-04 10:48:24,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-04 10:48:24,191 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:26,280 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 32 new depth: 21 [2018-10-04 10:48:26,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:26,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 40 states and 61 transitions. [2018-10-04 10:48:26,846 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 61 transitions. [2018-10-04 10:48:26,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-04 10:48:26,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:27,103 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 40 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:29,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 44 states and 72 transitions. [2018-10-04 10:48:29,219 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 72 transitions. [2018-10-04 10:48:29,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-04 10:48:29,221 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:29,708 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:32,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:32,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 47 states and 75 transitions. [2018-10-04 10:48:32,228 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 75 transitions. [2018-10-04 10:48:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-04 10:48:32,230 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:32,530 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 51 states and 87 transitions. [2018-10-04 10:48:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 87 transitions. [2018-10-04 10:48:35,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-04 10:48:35,723 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:40,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 54 states and 90 transitions. [2018-10-04 10:48:40,214 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 90 transitions. [2018-10-04 10:48:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-04 10:48:40,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:41,230 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 77 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:44,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 58 states and 103 transitions. [2018-10-04 10:48:44,612 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 103 transitions. [2018-10-04 10:48:44,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-04 10:48:44,613 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:48,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 61 states and 106 transitions. [2018-10-04 10:48:48,195 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 106 transitions. [2018-10-04 10:48:48,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-04 10:48:48,196 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:48,879 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 100 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:51,226 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 43 new depth: 35 [2018-10-04 10:48:53,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 65 states and 120 transitions. [2018-10-04 10:48:53,269 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 120 transitions. [2018-10-04 10:48:53,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-04 10:48:53,270 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:48:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:48:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 68 states and 123 transitions. [2018-10-04 10:48:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 123 transitions. [2018-10-04 10:48:57,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-04 10:48:57,105 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:48:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:48:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:49:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:49:01,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 72 states and 138 transitions. [2018-10-04 10:49:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 138 transitions. [2018-10-04 10:49:01,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-04 10:49:01,615 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:49:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:49:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:49:06,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:49:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 75 states and 141 transitions. [2018-10-04 10:49:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 141 transitions. [2018-10-04 10:49:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-04 10:49:06,213 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:49:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:49:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 155 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:49:11,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:49:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 79 states and 157 transitions. [2018-10-04 10:49:11,365 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 157 transitions. [2018-10-04 10:49:11,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-04 10:49:11,366 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:49:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:49:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:49:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:49:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 82 states and 160 transitions. [2018-10-04 10:49:17,456 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 160 transitions. [2018-10-04 10:49:17,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-04 10:49:17,457 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:49:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:49:18,255 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 187 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:49:21,654 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 56 new depth: 47 [2018-10-04 10:49:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:49:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 86 states and 177 transitions. [2018-10-04 10:49:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 177 transitions. [2018-10-04 10:49:24,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-04 10:49:24,665 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:49:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:49:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:49:30,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:49:30,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 89 states and 180 transitions. [2018-10-04 10:49:30,541 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 180 transitions. [2018-10-04 10:49:30,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-04 10:49:30,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:49:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:49:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 222 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:49:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:49:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 93 states and 198 transitions. [2018-10-04 10:49:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 198 transitions. [2018-10-04 10:49:37,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-04 10:49:37,261 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:49:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:49:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:49:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:49:45,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 96 states and 201 transitions. [2018-10-04 10:49:45,134 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 201 transitions. [2018-10-04 10:49:45,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-04 10:49:45,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:49:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:49:45,837 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 260 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:49:52,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:49:52,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 100 states and 220 transitions. [2018-10-04 10:49:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 220 transitions. [2018-10-04 10:49:52,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-04 10:49:52,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:49:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:49:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:50:00,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:50:00,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 103 states and 223 transitions. [2018-10-04 10:50:00,851 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 223 transitions. [2018-10-04 10:50:00,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-04 10:50:00,852 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:50:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:50:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 301 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:50:07,230 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 71 new depth: 60 [2018-10-04 10:50:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:50:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 107 states and 243 transitions. [2018-10-04 10:50:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 243 transitions. [2018-10-04 10:50:10,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-04 10:50:10,000 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:50:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:50:11,779 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 421 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:50:18,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:50:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 110 states and 246 transitions. [2018-10-04 10:50:18,663 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 246 transitions. [2018-10-04 10:50:18,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-04 10:50:18,664 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:50:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:50:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 345 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:50:27,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:50:27,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 114 states and 267 transitions. [2018-10-04 10:50:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 267 transitions. [2018-10-04 10:50:27,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-04 10:50:27,377 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:50:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:50:28,614 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 481 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:50:36,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:50:36,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 117 states and 270 transitions. [2018-10-04 10:50:36,438 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 270 transitions. [2018-10-04 10:50:36,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-04 10:50:36,440 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:50:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:50:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 392 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:50:46,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:50:46,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 121 states and 292 transitions. [2018-10-04 10:50:46,249 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 292 transitions. [2018-10-04 10:50:46,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-04 10:50:46,249 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:50:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:50:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 0 proven. 545 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:50:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:50:56,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 124 states and 295 transitions. [2018-10-04 10:50:56,417 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 295 transitions. [2018-10-04 10:50:56,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-04 10:50:56,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:50:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:50:57,291 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 442 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:51:03,074 INFO L248 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 83 new depth: 70 [2018-10-04 10:51:08,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:51:08,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 128 states and 318 transitions. [2018-10-04 10:51:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 318 transitions. [2018-10-04 10:51:08,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-04 10:51:08,628 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:51:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:51:10,190 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 0 proven. 613 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:51:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:51:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 131 states and 321 transitions. [2018-10-04 10:51:19,739 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 321 transitions. [2018-10-04 10:51:19,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-04 10:51:19,740 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:51:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:51:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 495 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:51:31,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:51:31,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 135 states and 345 transitions. [2018-10-04 10:51:31,247 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 345 transitions. [2018-10-04 10:51:31,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-10-04 10:51:31,248 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:51:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:51:32,649 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 0 proven. 685 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:51:42,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:51:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 138 states and 348 transitions. [2018-10-04 10:51:42,536 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 348 transitions. [2018-10-04 10:51:42,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-04 10:51:42,537 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:51:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:51:43,434 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 551 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:51:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:51:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 142 states and 373 transitions. [2018-10-04 10:51:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 373 transitions. [2018-10-04 10:51:54,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-04 10:51:54,713 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:51:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:51:56,354 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 0 proven. 761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:52:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:52:10,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 145 states and 376 transitions. [2018-10-04 10:52:10,453 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 376 transitions. [2018-10-04 10:52:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-04 10:52:10,454 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:52:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:52:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 610 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 10:52:25,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 10:52:25,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 149 states and 402 transitions. [2018-10-04 10:52:25,099 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 402 transitions. [2018-10-04 10:52:25,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-04 10:52:25,100 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 10:52:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 10:52:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 841 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown