java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/linear_sea.ch.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 22:54:04,354 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 22:54:04,357 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 22:54:04,372 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 22:54:04,373 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 22:54:04,374 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 22:54:04,375 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 22:54:04,377 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 22:54:04,378 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 22:54:04,379 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 22:54:04,380 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 22:54:04,381 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 22:54:04,381 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 22:54:04,383 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 22:54:04,384 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 22:54:04,384 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 22:54:04,385 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 22:54:04,387 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 22:54:04,389 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 22:54:04,391 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 22:54:04,392 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 22:54:04,393 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 22:54:04,396 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 22:54:04,396 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 22:54:04,396 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 22:54:04,397 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 22:54:04,398 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 22:54:04,399 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 22:54:04,399 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 22:54:04,401 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 22:54:04,401 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 22:54:04,401 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 22:54:04,402 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 22:54:04,402 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 22:54:04,403 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 22:54:04,404 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 22:54:04,404 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 22:54:04,434 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 22:54:04,434 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 22:54:04,435 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 22:54:04,436 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 22:54:04,436 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 22:54:04,437 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 22:54:04,437 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 22:54:04,437 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 22:54:04,437 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 22:54:04,438 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 22:54:04,438 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 22:54:04,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 22:54:04,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 22:54:04,440 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 22:54:04,440 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 22:54:04,440 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 22:54:04,440 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 22:54:04,440 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 22:54:04,441 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 22:54:04,441 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 22:54:04,441 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 22:54:04,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 22:54:04,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:54:04,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 22:54:04,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 22:54:04,444 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 22:54:04,444 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 22:54:04,444 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 22:54:04,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 22:54:04,444 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 22:54:04,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 22:54:04,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 22:54:04,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 22:54:04,525 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 22:54:04,526 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 22:54:04,527 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/linear_sea.ch.i_4.bpl [2018-09-26 22:54:04,527 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/linear_sea.ch.i_4.bpl' [2018-09-26 22:54:04,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 22:54:04,610 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 22:54:04,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 22:54:04,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 22:54:04,612 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 22:54:04,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (1/1) ... [2018-09-26 22:54:04,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (1/1) ... [2018-09-26 22:54:04,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 22:54:04,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 22:54:04,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 22:54:04,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 22:54:04,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (1/1) ... [2018-09-26 22:54:04,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (1/1) ... [2018-09-26 22:54:04,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (1/1) ... [2018-09-26 22:54:04,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (1/1) ... [2018-09-26 22:54:04,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (1/1) ... [2018-09-26 22:54:04,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (1/1) ... [2018-09-26 22:54:04,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (1/1) ... [2018-09-26 22:54:04,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 22:54:04,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 22:54:04,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 22:54:04,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 22:54:04,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:54:04" (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 22:54:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 22:54:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 22:54:05,128 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 22:54:05,129 INFO L202 PluginConnector]: Adding new model linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:54:05 BoogieIcfgContainer [2018-09-26 22:54:05,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 22:54:05,130 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 22:54:05,131 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 22:54:05,155 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 22:54:05,155 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:54:05" (1/1) ... [2018-09-26 22:54:05,200 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 22:54:05,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:05,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-26 22:54:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-26 22:54:05,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 22:54:05,268 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:05,607 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 22:54:06,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:06,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-09-26 22:54:06,308 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-09-26 22:54:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:54:06,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:06,874 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 22:54:11,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 11 states and 19 transitions. [2018-09-26 22:54:11,053 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 19 transitions. [2018-09-26 22:54:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:54:11,058 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:18,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:18,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 14 states and 30 transitions. [2018-09-26 22:54:18,904 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 30 transitions. [2018-09-26 22:54:18,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:54:18,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:25,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 16 states and 35 transitions. [2018-09-26 22:54:25,119 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 35 transitions. [2018-09-26 22:54:25,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:54:25,120 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:29,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:29,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 17 states and 36 transitions. [2018-09-26 22:54:29,630 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 36 transitions. [2018-09-26 22:54:29,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:54:29,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:29,829 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:35,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 18 states and 39 transitions. [2018-09-26 22:54:35,149 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 39 transitions. [2018-09-26 22:54:35,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:54:35,149 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:46,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 20 states and 44 transitions. [2018-09-26 22:54:46,114 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 44 transitions. [2018-09-26 22:54:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:54:46,115 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:46,881 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 22 states and 48 transitions. [2018-09-26 22:54:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 48 transitions. [2018-09-26 22:54:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:54:59,549 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:55:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:55:07,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 23 states and 48 transitions. [2018-09-26 22:55:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 48 transitions. [2018-09-26 22:55:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 22:55:07,068 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:55:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:55:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:55:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:55:23,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 25 states and 53 transitions. [2018-09-26 22:55:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 53 transitions. [2018-09-26 22:55:23,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 22:55:23,536 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:55:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:55:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:55:35,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:55:35,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 26 states and 53 transitions. [2018-09-26 22:55:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 53 transitions. [2018-09-26 22:55:35,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 22:55:35,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:55:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:55:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:55:49,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:55:49,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 28 states and 56 transitions. [2018-09-26 22:55:49,528 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 56 transitions. [2018-09-26 22:55:49,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 22:55:49,529 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:55:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:55:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:14,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:14,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 30 states and 61 transitions. [2018-09-26 22:56:14,033 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 61 transitions. [2018-09-26 22:56:14,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 22:56:14,036 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:31,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:31,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 31 states and 61 transitions. [2018-09-26 22:56:31,433 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 61 transitions. [2018-09-26 22:56:31,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 22:56:31,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:31,819 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:50,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 33 states and 64 transitions. [2018-09-26 22:56:50,529 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 64 transitions. [2018-09-26 22:56:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 22:56:50,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:57:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 36 states and 72 transitions. [2018-09-26 22:57:29,786 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 72 transitions. [2018-09-26 22:57:29,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 22:57:29,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:57:51,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:51,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 72 transitions. [2018-09-26 22:57:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 72 transitions. [2018-09-26 22:57:51,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 22:57:51,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:58:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:58:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 38 states and 72 transitions. [2018-09-26 22:58:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 72 transitions. [2018-09-26 22:58:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-26 22:58:15,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:58:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:58:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown