java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_by_k.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 22:48:32,836 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 22:48:32,839 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 22:48:32,852 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 22:48:32,852 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 22:48:32,854 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 22:48:32,855 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 22:48:32,857 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 22:48:32,858 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 22:48:32,859 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 22:48:32,860 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 22:48:32,861 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 22:48:32,862 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 22:48:32,863 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 22:48:32,864 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 22:48:32,865 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 22:48:32,866 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 22:48:32,867 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 22:48:32,870 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 22:48:32,871 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 22:48:32,872 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 22:48:32,874 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 22:48:32,876 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 22:48:32,877 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 22:48:32,877 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 22:48:32,878 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 22:48:32,879 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 22:48:32,880 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 22:48:32,880 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 22:48:32,882 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 22:48:32,882 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 22:48:32,883 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 22:48:32,883 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 22:48:32,883 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 22:48:32,887 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 22:48:32,888 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 22:48:32,888 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-09-26 22:48:32,923 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 22:48:32,924 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 22:48:32,925 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 22:48:32,926 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 22:48:32,926 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 22:48:32,926 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 22:48:32,927 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 22:48:32,927 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 22:48:32,927 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 22:48:32,928 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 22:48:32,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 22:48:32,929 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 22:48:32,929 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 22:48:32,929 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 22:48:32,929 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 22:48:32,929 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 22:48:32,930 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 22:48:32,930 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 22:48:32,930 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 22:48:32,930 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 22:48:32,932 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 22:48:32,932 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 22:48:32,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:48:32,932 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 22:48:32,932 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 22:48:32,933 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 22:48:32,933 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 22:48:32,933 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 22:48:32,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 22:48:32,933 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 22:48:32,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 22:48:33,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 22:48:33,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 22:48:33,016 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 22:48:33,016 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 22:48:33,017 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_by_k.i_3.bpl [2018-09-26 22:48:33,018 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_by_k.i_3.bpl' [2018-09-26 22:48:33,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 22:48:33,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 22:48:33,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 22:48:33,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 22:48:33,093 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 22:48:33,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 22:48:33,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 22:48:33,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 22:48:33,140 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 22:48:33,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 22:48:33,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 22:48:33,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 22:48:33,171 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 22:48:33,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:48:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:48:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 22:48:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 22:48:33,461 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 22:48:33,462 INFO L202 PluginConnector]: Adding new model count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:48:33 BoogieIcfgContainer [2018-09-26 22:48:33,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 22:48:33,463 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 22:48:33,463 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 22:48:33,476 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 22:48:33,476 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "count_by_k.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:48:33" (1/1) ... [2018-09-26 22:48:33,491 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 22:48:33,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-26 22:48:33,530 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-26 22:48:33,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 22:48:33,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:34,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:34,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 22:48:34,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 22:48:34,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:48:34,393 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:35,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2018-09-26 22:48:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-09-26 22:48:35,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:48:35,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:35,764 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2018-09-26 22:48:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-09-26 22:48:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:48:36,362 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:38,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-09-26 22:48:38,277 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-09-26 22:48:38,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:48:38,278 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:38,708 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:40,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:40,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2018-09-26 22:48:40,345 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-09-26 22:48:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 22:48:40,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:40,495 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:41,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:41,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2018-09-26 22:48:41,561 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-09-26 22:48:41,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 22:48:41,562 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:43,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:43,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2018-09-26 22:48:43,230 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-09-26 22:48:43,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 22:48:43,231 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:43,378 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:44,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:44,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2018-09-26 22:48:44,326 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-09-26 22:48:44,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-26 22:48:44,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:46,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 23 states and 24 transitions. [2018-09-26 22:48:46,802 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-09-26 22:48:46,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-26 22:48:46,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:48,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 25 states and 26 transitions. [2018-09-26 22:48:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-09-26 22:48:48,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-26 22:48:48,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:50,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:50,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 27 states and 28 transitions. [2018-09-26 22:48:50,453 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-09-26 22:48:50,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-26 22:48:50,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:50,731 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 29 states and 30 transitions. [2018-09-26 22:48:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-09-26 22:48:52,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-26 22:48:52,478 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:52,795 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:54,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 31 states and 32 transitions. [2018-09-26 22:48:54,819 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-09-26 22:48:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-26 22:48:54,820 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:48:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:48:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2018-09-26 22:48:57,604 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-09-26 22:48:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-26 22:48:57,605 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:48:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:48:58,108 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:00,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:00,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 35 states and 36 transitions. [2018-09-26 22:49:00,797 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2018-09-26 22:49:00,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-26 22:49:00,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:01,294 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:04,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 37 states and 38 transitions. [2018-09-26 22:49:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-09-26 22:49:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-26 22:49:04,727 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:08,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 39 states and 40 transitions. [2018-09-26 22:49:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2018-09-26 22:49:08,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-26 22:49:08,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:13,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:13,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 41 states and 42 transitions. [2018-09-26 22:49:13,274 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-09-26 22:49:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 22:49:13,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:18,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 43 states and 44 transitions. [2018-09-26 22:49:18,478 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2018-09-26 22:49:18,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-26 22:49:18,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:19,434 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:23,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 45 states and 46 transitions. [2018-09-26 22:49:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2018-09-26 22:49:23,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-26 22:49:23,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:30,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:30,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 47 states and 48 transitions. [2018-09-26 22:49:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-09-26 22:49:30,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-26 22:49:30,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:32,021 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:37,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:37,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 49 states and 50 transitions. [2018-09-26 22:49:37,607 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2018-09-26 22:49:37,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-26 22:49:37,608 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:38,967 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:45,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:45,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 51 states and 52 transitions. [2018-09-26 22:49:45,277 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2018-09-26 22:49:45,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-26 22:49:45,278 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:49:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:49:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 53 states and 54 transitions. [2018-09-26 22:49:54,042 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2018-09-26 22:49:54,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-26 22:49:54,043 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:49:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:49:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:50:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:50:03,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 55 states and 56 transitions. [2018-09-26 22:50:03,944 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2018-09-26 22:50:03,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-26 22:50:03,944 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:50:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:50:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:50:14,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:50:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 57 states and 58 transitions. [2018-09-26 22:50:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2018-09-26 22:50:14,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-26 22:50:14,618 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:50:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:50:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:50:26,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:50:26,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 59 states and 60 transitions. [2018-09-26 22:50:26,058 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2018-09-26 22:50:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-26 22:50:26,059 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:50:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:50:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:50:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:50:38,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 61 states and 62 transitions. [2018-09-26 22:50:38,897 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2018-09-26 22:50:38,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-26 22:50:38,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:50:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:50:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:50:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:50:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 63 states and 64 transitions. [2018-09-26 22:50:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2018-09-26 22:50:52,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-26 22:50:52,737 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:50:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:50:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:51:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:51:08,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 65 states and 66 transitions. [2018-09-26 22:51:08,398 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2018-09-26 22:51:08,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-26 22:51:08,399 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:51:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:51:11,288 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:51:25,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:51:25,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 67 states and 68 transitions. [2018-09-26 22:51:25,484 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2018-09-26 22:51:25,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-26 22:51:25,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:51:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:51:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:51:44,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:51:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 69 states and 70 transitions. [2018-09-26 22:51:44,087 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2018-09-26 22:51:44,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-26 22:51:44,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:51:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:51:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 71 states and 72 transitions. [2018-09-26 22:52:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2018-09-26 22:52:04,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-26 22:52:04,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:08,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:26,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 73 states and 74 transitions. [2018-09-26 22:52:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2018-09-26 22:52:26,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-09-26 22:52:26,498 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:49,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 75 states and 76 transitions. [2018-09-26 22:52:49,842 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2018-09-26 22:52:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-09-26 22:52:49,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown