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/real-life/threadpooling_out.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 22:38:44,474 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 22:38:44,476 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 22:38:44,488 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 22:38:44,489 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 22:38:44,490 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 22:38:44,491 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 22:38:44,493 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 22:38:44,495 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 22:38:44,495 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 22:38:44,496 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 22:38:44,497 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 22:38:44,497 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 22:38:44,499 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 22:38:44,500 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 22:38:44,501 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 22:38:44,501 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 22:38:44,503 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 22:38:44,505 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 22:38:44,507 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 22:38:44,508 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 22:38:44,509 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 22:38:44,512 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 22:38:44,512 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 22:38:44,512 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 22:38:44,513 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 22:38:44,514 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 22:38:44,515 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 22:38:44,516 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 22:38:44,517 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 22:38:44,517 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 22:38:44,518 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 22:38:44,518 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 22:38:44,519 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 22:38:44,520 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 22:38:44,521 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 22:38:44,521 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 22:38:44,536 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 22:38:44,536 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 22:38:44,537 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 22:38:44,538 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 22:38:44,538 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 22:38:44,538 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 22:38:44,539 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 22:38:44,539 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 22:38:44,539 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 22:38:44,539 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 22:38:44,540 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 22:38:44,540 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 22:38:44,540 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 22:38:44,540 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 22:38:44,540 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 22:38:44,541 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 22:38:44,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 22:38:44,541 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 22:38:44,541 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 22:38:44,541 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 22:38:44,542 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 22:38:44,542 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 22:38:44,542 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:38:44,542 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 22:38:44,543 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 22:38:44,543 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 22:38:44,543 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 22:38:44,543 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 22:38:44,543 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 22:38:44,544 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 22:38:44,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 22:38:44,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 22:38:44,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 22:38:44,612 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 22:38:44,613 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 22:38:44,614 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_out.bpl [2018-09-26 22:38:44,614 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_out.bpl' [2018-09-26 22:38:44,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 22:38:44,716 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 22:38:44,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 22:38:44,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 22:38:44,717 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 22:38:44,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,766 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 22:38:44,766 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 22:38:44,766 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 22:38:44,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 22:38:44,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 22:38:44,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 22:38:44,770 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 22:38:44,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 22:38:44,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 22:38:44,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 22:38:44,817 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 22:38:44,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (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 22:38:44,910 INFO L124 BoogieDeclarations]: Specification and implementation of procedure product given in one single declaration [2018-09-26 22:38:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure product [2018-09-26 22:38:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure product [2018-09-26 22:38:45,746 INFO L343 CfgBuilder]: Using library mode [2018-09-26 22:38:45,747 INFO L202 PluginConnector]: Adding new model threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:38:45 BoogieIcfgContainer [2018-09-26 22:38:45,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 22:38:45,748 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 22:38:45,748 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 22:38:45,759 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 22:38:45,759 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "threadpooling_out.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:38:45" (1/1) ... [2018-09-26 22:38:45,776 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 22:38:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:45,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 64 states and 127 transitions. [2018-09-26 22:38:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 127 transitions. [2018-09-26 22:38:45,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:38:45,820 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:46,206 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 22:38:47,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:47,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 70 states and 149 transitions. [2018-09-26 22:38:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 149 transitions. [2018-09-26 22:38:47,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:38:47,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:48,200 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 22:38:49,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:49,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 76 states and 174 transitions. [2018-09-26 22:38:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 174 transitions. [2018-09-26 22:38:49,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:38:49,635 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:49,783 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 22:38:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:51,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 79 states and 184 transitions. [2018-09-26 22:38:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 184 transitions. [2018-09-26 22:38:51,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:38:51,717 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:51,805 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 22:38:52,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:52,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 80 states and 186 transitions. [2018-09-26 22:38:52,014 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 186 transitions. [2018-09-26 22:38:52,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:38:52,015 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:52,064 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 22:38:52,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 81 states and 189 transitions. [2018-09-26 22:38:52,414 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 189 transitions. [2018-09-26 22:38:52,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:38:52,415 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:52,479 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 22:38:52,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 87 states and 207 transitions. [2018-09-26 22:38:52,975 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 207 transitions. [2018-09-26 22:38:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:38:52,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:53,011 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 22:38:53,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:53,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 88 states and 210 transitions. [2018-09-26 22:38:53,539 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 210 transitions. [2018-09-26 22:38:53,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:38:53,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:53,575 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 22:38:53,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:53,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 89 states and 213 transitions. [2018-09-26 22:38:53,834 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 213 transitions. [2018-09-26 22:38:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:38:53,836 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:53,868 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 22:38:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:54,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 90 states and 215 transitions. [2018-09-26 22:38:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 215 transitions. [2018-09-26 22:38:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:38:54,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:54,223 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 22:38:54,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:54,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 91 states and 220 transitions. [2018-09-26 22:38:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 220 transitions. [2018-09-26 22:38:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:38:54,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:54,564 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 22:38:54,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:54,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 92 states and 223 transitions. [2018-09-26 22:38:54,858 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 223 transitions. [2018-09-26 22:38:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:38:54,860 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:55,125 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 22:38:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:58,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 100 states and 258 transitions. [2018-09-26 22:38:58,059 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 258 transitions. [2018-09-26 22:38:58,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:38:58,060 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:58,129 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 22:38:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:58,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 101 states and 261 transitions. [2018-09-26 22:38:58,806 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 261 transitions. [2018-09-26 22:38:58,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:38:58,807 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:59,377 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 22:39:01,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 105 states and 279 transitions. [2018-09-26 22:39:01,934 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 279 transitions. [2018-09-26 22:39:01,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:39:01,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:01,983 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 22:39:02,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 106 states and 284 transitions. [2018-09-26 22:39:02,764 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 284 transitions. [2018-09-26 22:39:02,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:39:02,764 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:02,895 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 22:39:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 107 states and 287 transitions. [2018-09-26 22:39:03,866 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 287 transitions. [2018-09-26 22:39:03,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 22:39:03,867 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:03,915 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 22:39:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 108 states and 291 transitions. [2018-09-26 22:39:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 291 transitions. [2018-09-26 22:39:04,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:39:04,824 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:04,882 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 22:39:05,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 109 states and 295 transitions. [2018-09-26 22:39:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 295 transitions. [2018-09-26 22:39:05,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:39:05,399 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:05,439 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 22:39:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:06,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 110 states and 298 transitions. [2018-09-26 22:39:06,038 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 298 transitions. [2018-09-26 22:39:06,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:39:06,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:06,163 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 22:39:06,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 111 states and 305 transitions. [2018-09-26 22:39:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 305 transitions. [2018-09-26 22:39:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:39:06,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:07,116 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 22:39:10,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 117 states and 334 transitions. [2018-09-26 22:39:10,652 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 334 transitions. [2018-09-26 22:39:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:39:10,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:10,834 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 22:39:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 118 states and 338 transitions. [2018-09-26 22:39:12,456 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 338 transitions. [2018-09-26 22:39:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:39:12,457 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:12,608 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 22:39:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 119 states and 346 transitions. [2018-09-26 22:39:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 346 transitions. [2018-09-26 22:39:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:39:14,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:14,517 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 22:39:15,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:15,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 120 states and 354 transitions. [2018-09-26 22:39:15,286 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 354 transitions. [2018-09-26 22:39:15,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:15,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:16,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:39:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 128 states and 402 transitions. [2018-09-26 22:39:25,715 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 402 transitions. [2018-09-26 22:39:25,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:25,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:39:33,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:33,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 134 states and 432 transitions. [2018-09-26 22:39:33,150 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 432 transitions. [2018-09-26 22:39:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:33,151 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:39:36,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 135 states and 438 transitions. [2018-09-26 22:39:36,420 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 438 transitions. [2018-09-26 22:39:36,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:36,421 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:36,795 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 22:39:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 136 states and 441 transitions. [2018-09-26 22:39:37,753 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 441 transitions. [2018-09-26 22:39:37,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:37,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:37,809 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 22:39:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 137 states and 444 transitions. [2018-09-26 22:39:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 444 transitions. [2018-09-26 22:39:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:39,066 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:39,134 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 22:39:42,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:42,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 143 states and 467 transitions. [2018-09-26 22:39:42,570 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 467 transitions. [2018-09-26 22:39:42,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:42,571 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:42,639 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 22:39:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 144 states and 472 transitions. [2018-09-26 22:39:44,886 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 472 transitions. [2018-09-26 22:39:44,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:44,886 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:39:48,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:48,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 146 states and 481 transitions. [2018-09-26 22:39:48,267 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 481 transitions. [2018-09-26 22:39:48,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:48,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:48,442 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 22:39:49,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 147 states and 484 transitions. [2018-09-26 22:39:49,414 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 484 transitions. [2018-09-26 22:39:49,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:49,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:49,492 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 22:39:50,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:50,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 148 states and 487 transitions. [2018-09-26 22:39:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 487 transitions. [2018-09-26 22:39:50,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:50,967 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:51,027 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 22:39:52,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 149 states and 490 transitions. [2018-09-26 22:39:52,338 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 490 transitions. [2018-09-26 22:39:52,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:52,339 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:52,413 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 22:39:53,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:53,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 150 states and 493 transitions. [2018-09-26 22:39:53,476 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 493 transitions. [2018-09-26 22:39:53,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:53,476 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:39:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 152 states and 501 transitions. [2018-09-26 22:39:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 501 transitions. [2018-09-26 22:39:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 22:39:59,598 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:02,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:15,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 156 states and 524 transitions. [2018-09-26 22:40:15,714 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 524 transitions. [2018-09-26 22:40:15,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:40:15,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:15,999 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 22:40:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:18,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 162 states and 547 transitions. [2018-09-26 22:40:18,767 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 547 transitions. [2018-09-26 22:40:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:40:18,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:25,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:25,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 168 states and 575 transitions. [2018-09-26 22:40:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 575 transitions. [2018-09-26 22:40:25,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:40:25,002 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:25,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:27,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:27,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 169 states and 577 transitions. [2018-09-26 22:40:27,483 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 577 transitions. [2018-09-26 22:40:27,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:40:27,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:27,580 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 22:40:29,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 170 states and 581 transitions. [2018-09-26 22:40:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 581 transitions. [2018-09-26 22:40:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:40:29,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 171 states and 587 transitions. [2018-09-26 22:40:34,241 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 587 transitions. [2018-09-26 22:40:34,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:40:34,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:36,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 173 states and 594 transitions. [2018-09-26 22:40:36,098 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 594 transitions. [2018-09-26 22:40:36,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:40:36,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:37,825 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 22:40:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:57,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 179 states and 622 transitions. [2018-09-26 22:40:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 622 transitions. [2018-09-26 22:40:57,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:40:57,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:58,676 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 22:41:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 180 states and 625 transitions. [2018-09-26 22:41:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 625 transitions. [2018-09-26 22:41:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:41:05,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:07,872 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 22:41:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 181 states and 631 transitions. [2018-09-26 22:41:16,013 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 631 transitions. [2018-09-26 22:41:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:41:16,014 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:16,101 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 22:41:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 182 states and 634 transitions. [2018-09-26 22:41:17,902 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 634 transitions. [2018-09-26 22:41:17,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:41:17,902 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:19,456 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 22:41:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:25,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 183 states and 638 transitions. [2018-09-26 22:41:25,832 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 638 transitions. [2018-09-26 22:41:25,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:41:25,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:41:31,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 184 states and 642 transitions. [2018-09-26 22:41:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 642 transitions. [2018-09-26 22:41:31,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:41:31,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:33,378 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 22:41:42,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:42,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 185 states and 650 transitions. [2018-09-26 22:41:42,676 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 650 transitions. [2018-09-26 22:41:42,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:41:42,676 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:44,726 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 22:41:54,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:54,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 186 states and 662 transitions. [2018-09-26 22:41:54,763 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 662 transitions. [2018-09-26 22:41:54,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:41:54,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:54,868 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 22:41:57,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:57,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 187 states and 669 transitions. [2018-09-26 22:41:57,184 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 669 transitions. [2018-09-26 22:41:57,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:41:57,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:58,451 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 22:42:07,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:07,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 188 states and 677 transitions. [2018-09-26 22:42:07,217 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 677 transitions. [2018-09-26 22:42:07,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:42:07,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:07,323 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 22:42:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 190 states and 687 transitions. [2018-09-26 22:42:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 687 transitions. [2018-09-26 22:42:09,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:42:09,315 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:10,397 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 22:42:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 191 states and 692 transitions. [2018-09-26 22:42:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 692 transitions. [2018-09-26 22:42:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:42:13,654 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:13,769 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 22:42:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:21,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 192 states and 697 transitions. [2018-09-26 22:42:21,777 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 697 transitions. [2018-09-26 22:42:21,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:42:21,778 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:21,886 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 22:42:30,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:30,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 193 states and 705 transitions. [2018-09-26 22:42:30,523 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 705 transitions. [2018-09-26 22:42:30,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:42:30,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:30,612 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 22:42:32,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:32,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 194 states and 709 transitions. [2018-09-26 22:42:32,579 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 709 transitions. [2018-09-26 22:42:32,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:42:32,579 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:32,699 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 22:42:34,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 195 states and 713 transitions. [2018-09-26 22:42:34,566 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 713 transitions. [2018-09-26 22:42:34,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:42:34,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown