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 0.1.23-2eb0a67 [2018-10-03 10:20:24,987 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-03 10:20:24,989 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-03 10:20:25,004 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-03 10:20:25,004 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-03 10:20:25,005 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-03 10:20:25,006 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-03 10:20:25,008 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-03 10:20:25,010 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-03 10:20:25,011 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-03 10:20:25,012 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-03 10:20:25,012 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-03 10:20:25,013 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-03 10:20:25,014 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-03 10:20:25,017 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-03 10:20:25,018 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-03 10:20:25,019 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-03 10:20:25,021 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-03 10:20:25,023 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-03 10:20:25,024 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-03 10:20:25,026 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-03 10:20:25,027 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-03 10:20:25,029 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-03 10:20:25,030 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-03 10:20:25,030 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-03 10:20:25,031 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-03 10:20:25,032 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-03 10:20:25,033 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-03 10:20:25,034 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-03 10:20:25,035 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-03 10:20:25,035 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-03 10:20:25,036 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-03 10:20:25,036 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-03 10:20:25,036 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-03 10:20:25,037 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-03 10:20:25,038 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-03 10:20:25,038 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-10-03 10:20:25,060 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-03 10:20:25,060 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-03 10:20:25,061 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-03 10:20:25,063 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-03 10:20:25,064 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-03 10:20:25,064 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-03 10:20:25,064 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-03 10:20:25,064 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-03 10:20:25,064 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-03 10:20:25,065 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-03 10:20:25,065 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-03 10:20:25,065 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-03 10:20:25,065 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-03 10:20:25,067 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-03 10:20:25,067 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-03 10:20:25,067 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-03 10:20:25,068 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-03 10:20:25,068 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-03 10:20:25,068 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-03 10:20:25,068 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-03 10:20:25,070 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-03 10:20:25,070 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-03 10:20:25,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-03 10:20:25,071 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-03 10:20:25,071 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-03 10:20:25,071 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-03 10:20:25,071 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-03 10:20:25,072 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-03 10:20:25,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-03 10:20:25,072 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-03 10:20:25,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-03 10:20:25,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-03 10:20:25,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-03 10:20:25,149 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-03 10:20:25,149 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-03 10:20:25,150 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit02.bpl [2018-10-03 10:20:25,151 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit02.bpl' [2018-10-03 10:20:25,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-03 10:20:25,203 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-03 10:20:25,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-03 10:20:25,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-03 10:20:25,204 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-03 10:20:25,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-03 10:20:25,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-03 10:20:25,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-03 10:20:25,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-03 10:20:25,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-03 10:20:25,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-03 10:20:25,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-03 10:20:25,271 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-03 10:20:25,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:20:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-03 10:20:25,345 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-03 10:20:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-03 10:20:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-03 10:20:25,750 INFO L340 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-03 10:20:25,751 INFO L202 PluginConnector]: Adding new model ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 10:20:25 BoogieIcfgContainer [2018-10-03 10:20:25,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-03 10:20:25,752 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-03 10:20:25,752 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-03 10:20:25,779 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-03 10:20:25,780 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 10:20:25" (1/1) ... [2018-10-03 10:20:25,794 INFO L106 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-03 10:20:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:25,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2018-10-03 10:20:25,862 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2018-10-03 10:20:25,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-03 10:20:25,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:26,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:26,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-10-03 10:20:26,285 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-10-03 10:20:26,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-03 10:20:26,285 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:26,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:28,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-10-03 10:20:28,155 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-10-03 10:20:28,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-03 10:20:28,156 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:29,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2018-10-03 10:20:29,110 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2018-10-03 10:20:29,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-03 10:20:29,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:29,505 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:30,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:30,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2018-10-03 10:20:30,484 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-10-03 10:20:30,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-03 10:20:30,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:30,624 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:32,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:32,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2018-10-03 10:20:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2018-10-03 10:20:32,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-03 10:20:32,440 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:32,716 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2018-10-03 10:20:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2018-10-03 10:20:34,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-03 10:20:34,556 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:34,741 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:36,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2018-10-03 10:20:36,256 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2018-10-03 10:20:36,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-03 10:20:36,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:36,674 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:38,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2018-10-03 10:20:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2018-10-03 10:20:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-03 10:20:38,320 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:40,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:40,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 58 transitions. [2018-10-03 10:20:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2018-10-03 10:20:40,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-03 10:20:40,731 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:43,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 40 states and 61 transitions. [2018-10-03 10:20:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 61 transitions. [2018-10-03 10:20:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-03 10:20:43,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 40 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 44 states and 72 transitions. [2018-10-03 10:20:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 72 transitions. [2018-10-03 10:20:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-03 10:20:45,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 47 states and 75 transitions. [2018-10-03 10:20:48,574 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 75 transitions. [2018-10-03 10:20:48,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-03 10:20:48,575 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:48,859 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:52,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 51 states and 87 transitions. [2018-10-03 10:20:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 87 transitions. [2018-10-03 10:20:52,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-03 10:20:52,075 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:52,636 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:20:56,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:20:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 54 states and 90 transitions. [2018-10-03 10:20:56,753 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 90 transitions. [2018-10-03 10:20:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-03 10:20:56,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:20:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:20:57,770 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 77 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:01,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 58 states and 103 transitions. [2018-10-03 10:21:01,042 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 103 transitions. [2018-10-03 10:21:01,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-03 10:21:01,043 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:04,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:04,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 61 states and 106 transitions. [2018-10-03 10:21:04,955 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 106 transitions. [2018-10-03 10:21:04,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-03 10:21:04,956 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 100 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:08,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 65 states and 120 transitions. [2018-10-03 10:21:08,948 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 120 transitions. [2018-10-03 10:21:08,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-03 10:21:08,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:12,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:12,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 68 states and 123 transitions. [2018-10-03 10:21:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 123 transitions. [2018-10-03 10:21:12,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-03 10:21:12,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:13,966 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:17,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:17,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 72 states and 138 transitions. [2018-10-03 10:21:17,897 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 138 transitions. [2018-10-03 10:21:17,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-03 10:21:17,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:18,625 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:22,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:22,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 75 states and 141 transitions. [2018-10-03 10:21:22,427 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 141 transitions. [2018-10-03 10:21:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-03 10:21:22,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:23,056 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 155 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 79 states and 157 transitions. [2018-10-03 10:21:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 157 transitions. [2018-10-03 10:21:27,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-03 10:21:27,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:33,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 82 states and 160 transitions. [2018-10-03 10:21:33,060 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 160 transitions. [2018-10-03 10:21:33,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-03 10:21:33,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:34,187 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 187 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:39,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:39,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 86 states and 177 transitions. [2018-10-03 10:21:39,377 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 177 transitions. [2018-10-03 10:21:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-03 10:21:39,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:40,301 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:45,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 89 states and 180 transitions. [2018-10-03 10:21:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 180 transitions. [2018-10-03 10:21:45,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-03 10:21:45,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:45,964 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 222 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:21:52,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:21:52,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 93 states and 198 transitions. [2018-10-03 10:21:52,191 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 198 transitions. [2018-10-03 10:21:52,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-03 10:21:52,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:21:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:21:54,004 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:22:00,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:22:00,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 96 states and 201 transitions. [2018-10-03 10:22:00,775 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 201 transitions. [2018-10-03 10:22:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-03 10:22:00,776 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:22:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:22:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 260 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:22:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:22:08,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 100 states and 220 transitions. [2018-10-03 10:22:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 220 transitions. [2018-10-03 10:22:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-03 10:22:08,623 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:22:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:22:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:22:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:22:16,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 103 states and 223 transitions. [2018-10-03 10:22:16,677 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 223 transitions. [2018-10-03 10:22:16,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-03 10:22:16,679 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:22:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:22:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 301 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:22:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:22:24,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 107 states and 243 transitions. [2018-10-03 10:22:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 243 transitions. [2018-10-03 10:22:24,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-03 10:22:24,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:22:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:22:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 421 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:22:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:22:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 110 states and 246 transitions. [2018-10-03 10:22:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 246 transitions. [2018-10-03 10:22:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-03 10:22:32,740 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:22:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:22:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 345 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:22:41,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:22:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 114 states and 267 transitions. [2018-10-03 10:22:41,514 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 267 transitions. [2018-10-03 10:22:41,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-03 10:22:41,515 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:22:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:22:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 481 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:22:50,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:22:50,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 117 states and 270 transitions. [2018-10-03 10:22:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 270 transitions. [2018-10-03 10:22:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-03 10:22:50,637 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:22:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:22:51,477 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 392 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:23:00,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:23:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 121 states and 292 transitions. [2018-10-03 10:23:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 292 transitions. [2018-10-03 10:23:00,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-03 10:23:00,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:23:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:23:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 0 proven. 545 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:23:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:23:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 124 states and 295 transitions. [2018-10-03 10:23:10,583 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 295 transitions. [2018-10-03 10:23:10,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-03 10:23:10,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:23:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:23:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 442 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:23:21,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:23:21,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 128 states and 318 transitions. [2018-10-03 10:23:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 318 transitions. [2018-10-03 10:23:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-03 10:23:21,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:23:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:23:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 0 proven. 613 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:23:33,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:23:33,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 131 states and 321 transitions. [2018-10-03 10:23:33,191 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 321 transitions. [2018-10-03 10:23:33,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-03 10:23:33,193 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:23:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:23:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 495 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:23:44,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:23:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 135 states and 345 transitions. [2018-10-03 10:23:44,919 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 345 transitions. [2018-10-03 10:23:44,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-10-03 10:23:44,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:23:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:23:46,425 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 0 proven. 685 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:23:56,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:23:56,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 138 states and 348 transitions. [2018-10-03 10:23:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 348 transitions. [2018-10-03 10:23:56,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-03 10:23:56,598 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:23:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:23:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 551 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:24:09,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:24:09,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 142 states and 373 transitions. [2018-10-03 10:24:09,890 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 373 transitions. [2018-10-03 10:24:09,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-03 10:24:09,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:24:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:24:11,443 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 0 proven. 761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:24:25,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:24:25,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 145 states and 376 transitions. [2018-10-03 10:24:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 376 transitions. [2018-10-03 10:24:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-03 10:24:25,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:24:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:24:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 610 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:24:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:24:40,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 149 states and 402 transitions. [2018-10-03 10:24:40,141 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 402 transitions. [2018-10-03 10:24:40,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-03 10:24:40,142 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:24:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:24:41,980 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