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/Luxembourg-ArraysIntegefied.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 12:06:48,776 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 12:06:48,779 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 12:06:48,790 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 12:06:48,791 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 12:06:48,792 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 12:06:48,793 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 12:06:48,795 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 12:06:48,796 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 12:06:48,797 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 12:06:48,798 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 12:06:48,798 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 12:06:48,799 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 12:06:48,800 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 12:06:48,801 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 12:06:48,802 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 12:06:48,803 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 12:06:48,805 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 12:06:48,807 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 12:06:48,808 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 12:06:48,809 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 12:06:48,810 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 12:06:48,813 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 12:06:48,813 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 12:06:48,813 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 12:06:48,814 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 12:06:48,815 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 12:06:48,816 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 12:06:48,817 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 12:06:48,818 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 12:06:48,818 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 12:06:48,819 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 12:06:48,819 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 12:06:48,819 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 12:06:48,820 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 12:06:48,821 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 12:06:48,821 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 [2018-09-30 12:06:48,837 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 12:06:48,837 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 12:06:48,838 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 12:06:48,838 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 12:06:48,839 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 12:06:48,839 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 12:06:48,839 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 12:06:48,839 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 12:06:48,840 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 12:06:48,840 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 12:06:48,840 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 12:06:48,840 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 12:06:48,840 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 12:06:48,841 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 12:06:48,841 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 12:06:48,841 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 12:06:48,841 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 12:06:48,841 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 12:06:48,842 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 12:06:48,842 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 12:06:48,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 12:06:48,842 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 12:06:48,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 12:06:48,843 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 12:06:48,843 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 12:06:48,843 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 12:06:48,843 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 12:06:48,843 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 12:06:48,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 12:06:48,844 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 12:06:48,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 12:06:48,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 12:06:48,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 12:06:48,905 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 12:06:48,906 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 12:06:48,907 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl [2018-09-30 12:06:48,907 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl' [2018-09-30 12:06:48,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 12:06:48,959 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 12:06:48,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 12:06:48,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 12:06:48,960 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 12:06:48,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (1/1) ... [2018-09-30 12:06:48,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (1/1) ... [2018-09-30 12:06:48,999 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 12:06:48,999 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 12:06:49,000 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 12:06:49,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 12:06:49,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 12:06:49,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 12:06:49,003 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 12:06:49,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (1/1) ... [2018-09-30 12:06:49,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (1/1) ... [2018-09-30 12:06:49,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (1/1) ... [2018-09-30 12:06:49,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (1/1) ... [2018-09-30 12:06:49,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (1/1) ... [2018-09-30 12:06:49,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (1/1) ... [2018-09-30 12:06:49,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (1/1) ... [2018-09-30 12:06:49,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 12:06:49,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 12:06:49,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 12:06:49,027 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 12:06:49,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:48" (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 [2018-09-30 12:06:49,106 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-30 12:06:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-30 12:06:49,107 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-30 12:06:49,699 INFO L345 CfgBuilder]: Using library mode [2018-09-30 12:06:49,700 INFO L202 PluginConnector]: Adding new model Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 12:06:49 BoogieIcfgContainer [2018-09-30 12:06:49,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 12:06:49,701 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 12:06:49,701 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 12:06:49,713 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 12:06:49,713 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 12:06:49" (1/1) ... [2018-09-30 12:06:49,726 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 12:06:49,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-09-30 12:06:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-30 12:06:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 12:06:49,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:50,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-09-30 12:06:50,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-09-30 12:06:50,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 12:06:50,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:51,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 8 states and 14 transitions. [2018-09-30 12:06:51,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 14 transitions. [2018-09-30 12:06:51,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 12:06:51,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:51,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:52,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-09-30 12:06:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-09-30 12:06:52,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 12:06:52,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:53,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:53,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 10 states and 18 transitions. [2018-09-30 12:06:53,060 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 18 transitions. [2018-09-30 12:06:53,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-30 12:06:53,060 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:54,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 11 states and 20 transitions. [2018-09-30 12:06:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 20 transitions. [2018-09-30 12:06:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 12:06:54,020 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:55,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2018-09-30 12:06:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2018-09-30 12:06:55,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-30 12:06:55,243 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:55,389 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:57,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 13 states and 24 transitions. [2018-09-30 12:06:57,097 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 24 transitions. [2018-09-30 12:06:57,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-30 12:06:57,097 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:57,263 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:58,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:58,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 14 states and 26 transitions. [2018-09-30 12:06:58,037 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 26 transitions. [2018-09-30 12:06:58,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-30 12:06:58,038 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:58,289 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:59,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 15 states and 28 transitions. [2018-09-30 12:06:59,239 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 28 transitions. [2018-09-30 12:06:59,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-30 12:06:59,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:59,401 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:00,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:00,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 16 states and 30 transitions. [2018-09-30 12:07:00,383 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 30 transitions. [2018-09-30 12:07:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 12:07:00,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:00,595 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:01,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:01,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 17 states and 32 transitions. [2018-09-30 12:07:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 32 transitions. [2018-09-30 12:07:01,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 12:07:01,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 18 states and 34 transitions. [2018-09-30 12:07:02,781 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 34 transitions. [2018-09-30 12:07:02,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 12:07:02,783 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:04,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:04,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 19 states and 36 transitions. [2018-09-30 12:07:04,774 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 36 transitions. [2018-09-30 12:07:04,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 12:07:04,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:06,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:06,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 20 states and 38 transitions. [2018-09-30 12:07:06,341 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 38 transitions. [2018-09-30 12:07:06,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-30 12:07:06,341 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:07,521 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:08,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:08,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 21 states and 40 transitions. [2018-09-30 12:07:08,606 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 40 transitions. [2018-09-30 12:07:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-30 12:07:08,607 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:10,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 22 states and 42 transitions. [2018-09-30 12:07:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 42 transitions. [2018-09-30 12:07:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-30 12:07:10,576 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 23 states and 44 transitions. [2018-09-30 12:07:12,283 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 44 transitions. [2018-09-30 12:07:12,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-30 12:07:12,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:12,541 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:14,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:14,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 24 states and 46 transitions. [2018-09-30 12:07:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 46 transitions. [2018-09-30 12:07:14,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-30 12:07:14,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:16,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:16,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 25 states and 48 transitions. [2018-09-30 12:07:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 48 transitions. [2018-09-30 12:07:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-30 12:07:16,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:17,034 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:19,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 26 states and 50 transitions. [2018-09-30 12:07:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 50 transitions. [2018-09-30 12:07:19,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-30 12:07:19,057 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:21,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:21,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 27 states and 52 transitions. [2018-09-30 12:07:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 52 transitions. [2018-09-30 12:07:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-30 12:07:21,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:24,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 28 states and 54 transitions. [2018-09-30 12:07:24,059 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 54 transitions. [2018-09-30 12:07:24,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-30 12:07:24,060 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:24,417 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:26,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:26,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 29 states and 56 transitions. [2018-09-30 12:07:26,611 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 56 transitions. [2018-09-30 12:07:26,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-30 12:07:26,612 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:29,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:29,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 30 states and 58 transitions. [2018-09-30 12:07:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 58 transitions. [2018-09-30 12:07:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-30 12:07:29,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:30,433 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 31 states and 60 transitions. [2018-09-30 12:07:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 60 transitions. [2018-09-30 12:07:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 12:07:33,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:36,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:36,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 32 states and 62 transitions. [2018-09-30 12:07:36,290 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 62 transitions. [2018-09-30 12:07:36,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-30 12:07:36,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:40,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 33 states and 64 transitions. [2018-09-30 12:07:40,317 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 64 transitions. [2018-09-30 12:07:40,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-30 12:07:40,318 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:44,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 34 states and 66 transitions. [2018-09-30 12:07:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 66 transitions. [2018-09-30 12:07:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-30 12:07:44,237 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:48,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 35 states and 68 transitions. [2018-09-30 12:07:48,612 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 68 transitions. [2018-09-30 12:07:48,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-30 12:07:48,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:52,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:52,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 36 states and 70 transitions. [2018-09-30 12:07:52,791 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 70 transitions. [2018-09-30 12:07:52,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-30 12:07:52,791 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 72 transitions. [2018-09-30 12:07:57,358 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 72 transitions. [2018-09-30 12:07:57,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-30 12:07:57,358 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:08:02,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:08:02,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 38 states and 74 transitions. [2018-09-30 12:08:02,342 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 74 transitions. [2018-09-30 12:08:02,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-30 12:08:02,342 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:08:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:08:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:08:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:08:07,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 39 states and 76 transitions. [2018-09-30 12:08:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 76 transitions. [2018-09-30 12:08:07,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-30 12:08:07,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:08:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:08:08,306 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:08:13,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:08:13,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 40 states and 78 transitions. [2018-09-30 12:08:13,130 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 78 transitions. [2018-09-30 12:08:13,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-30 12:08:13,130 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:08:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:08:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:08:19,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:08:19,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 41 states and 80 transitions. [2018-09-30 12:08:19,175 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 80 transitions. [2018-09-30 12:08:19,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-30 12:08:19,175 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:08:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:08:19,792 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:08:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:08:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 42 states and 82 transitions. [2018-09-30 12:08:25,267 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 82 transitions. [2018-09-30 12:08:25,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-30 12:08:25,268 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:08:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:08:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:08:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:08:31,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 43 states and 84 transitions. [2018-09-30 12:08:31,983 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 84 transitions. [2018-09-30 12:08:31,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-30 12:08:31,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:08:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:08:32,703 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:08:38,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:08:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 44 states and 86 transitions. [2018-09-30 12:08:38,983 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 86 transitions. [2018-09-30 12:08:38,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-30 12:08:38,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:08:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:08:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:08:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:08:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 45 states and 88 transitions. [2018-09-30 12:08:46,586 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 88 transitions. [2018-09-30 12:08:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-30 12:08:46,587 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:08:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:08:47,383 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:08:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:08:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 46 states and 90 transitions. [2018-09-30 12:08:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 90 transitions. [2018-09-30 12:08:54,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-30 12:08:54,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:08:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:08:55,192 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:09:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:09:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 47 states and 92 transitions. [2018-09-30 12:09:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 92 transitions. [2018-09-30 12:09:02,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-30 12:09:02,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:09:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:09:03,485 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:09:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:09:11,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 94 transitions. [2018-09-30 12:09:11,400 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 94 transitions. [2018-09-30 12:09:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-30 12:09:11,400 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:09:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:09:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:09:20,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:09:20,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 49 states and 96 transitions. [2018-09-30 12:09:20,928 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2018-09-30 12:09:20,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-30 12:09:20,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:09:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:09:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:09:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:09:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 50 states and 98 transitions. [2018-09-30 12:09:30,523 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 98 transitions. [2018-09-30 12:09:30,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-30 12:09:30,524 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:09:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:09:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:09:40,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:09:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 51 states and 100 transitions. [2018-09-30 12:09:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 100 transitions. [2018-09-30 12:09:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-30 12:09:40,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:09:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:09:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:09:51,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:09:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 52 states and 102 transitions. [2018-09-30 12:09:51,529 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 102 transitions. [2018-09-30 12:09:51,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-30 12:09:51,529 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:09:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:09:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:10:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:10:02,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 53 states and 104 transitions. [2018-09-30 12:10:02,992 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 104 transitions. [2018-09-30 12:10:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-30 12:10:02,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:10:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:10:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:10:14,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:10:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 54 states and 106 transitions. [2018-09-30 12:10:14,960 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 106 transitions. [2018-09-30 12:10:14,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-30 12:10:14,961 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:10:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:10:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:10:27,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:10:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 55 states and 108 transitions. [2018-09-30 12:10:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 108 transitions. [2018-09-30 12:10:27,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-30 12:10:27,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:10:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:10:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:10:41,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:10:41,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 56 states and 110 transitions. [2018-09-30 12:10:41,333 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 110 transitions. [2018-09-30 12:10:41,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-30 12:10:41,333 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:10:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:10:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:10:55,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:10:55,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 57 states and 112 transitions. [2018-09-30 12:10:55,677 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 112 transitions. [2018-09-30 12:10:55,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-30 12:10:55,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:10:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:10:57,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:11:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:11:10,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 58 states and 114 transitions. [2018-09-30 12:11:10,776 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 114 transitions. [2018-09-30 12:11:10,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-30 12:11:10,776 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:11:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:11:12,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown