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/afnp2014.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f-m [2018-10-04 14:51:11,263 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 14:51:11,265 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 14:51:11,285 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 14:51:11,285 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 14:51:11,287 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 14:51:11,288 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 14:51:11,292 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 14:51:11,293 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 14:51:11,297 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 14:51:11,299 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 14:51:11,300 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 14:51:11,301 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 14:51:11,302 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 14:51:11,305 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 14:51:11,306 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 14:51:11,307 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 14:51:11,308 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 14:51:11,310 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 14:51:11,312 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 14:51:11,313 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 14:51:11,317 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 14:51:11,320 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 14:51:11,321 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 14:51:11,321 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 14:51:11,322 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 14:51:11,323 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 14:51:11,324 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 14:51:11,327 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 14:51:11,328 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 14:51:11,328 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 14:51:11,329 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 14:51:11,329 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 14:51:11,329 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 14:51:11,331 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 14:51:11,332 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 14:51:11,332 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-10-04 14:51:11,361 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 14:51:11,362 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 14:51:11,363 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 14:51:11,363 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 14:51:11,364 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 14:51:11,364 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 14:51:11,364 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 14:51:11,364 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 14:51:11,364 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 14:51:11,365 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 14:51:11,367 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 14:51:11,368 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 14:51:11,368 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 14:51:11,368 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 14:51:11,368 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 14:51:11,368 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 14:51:11,368 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 14:51:11,369 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 14:51:11,369 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 14:51:11,369 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 14:51:11,369 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 14:51:11,369 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 14:51:11,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 14:51:11,370 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 14:51:11,370 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 14:51:11,370 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 14:51:11,370 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 14:51:11,370 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 14:51:11,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 14:51:11,372 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 14:51:11,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 14:51:11,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 14:51:11,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 14:51:11,442 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 14:51:11,442 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 14:51:11,443 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/afnp2014.c.i_3.bpl [2018-10-04 14:51:11,444 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/afnp2014.c.i_3.bpl' [2018-10-04 14:51:11,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 14:51:11,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 14:51:11,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 14:51:11,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 14:51:11,503 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 14:51:11,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 14:51:11,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 14:51:11,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 14:51:11,545 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 14:51:11,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 14:51:11,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 14:51:11,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 14:51:11,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 14:51:11,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:51:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 14:51:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 14:51:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 14:51:11,867 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 14:51:11,868 INFO L202 PluginConnector]: Adding new model afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:51:11 BoogieIcfgContainer [2018-10-04 14:51:11,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 14:51:11,868 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 14:51:11,869 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 14:51:11,882 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 14:51:11,882 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:51:11" (1/1) ... [2018-10-04 14:51:11,897 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 14:51:11,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:11,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-10-04 14:51:11,941 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-10-04 14:51:11,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 14:51:11,945 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:12,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:12,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-10-04 14:51:12,561 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-10-04 14:51:12,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 14:51:12,561 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:12,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 11 states and 17 transitions. [2018-10-04 14:51:13,573 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 17 transitions. [2018-10-04 14:51:13,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 14:51:13,577 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:13,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:14,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:14,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 13 states and 20 transitions. [2018-10-04 14:51:14,488 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 20 transitions. [2018-10-04 14:51:14,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 14:51:14,489 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:14,554 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 15 states and 21 transitions. [2018-10-04 14:51:14,950 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2018-10-04 14:51:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 14:51:14,951 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:15,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2018-10-04 14:51:15,679 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2018-10-04 14:51:15,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 14:51:15,680 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:17,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 19 states and 29 transitions. [2018-10-04 14:51:17,332 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 29 transitions. [2018-10-04 14:51:17,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 14:51:17,334 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2018-10-04 14:51:18,786 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2018-10-04 14:51:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-04 14:51:18,786 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:19,016 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:20,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 23 states and 39 transitions. [2018-10-04 14:51:20,017 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 39 transitions. [2018-10-04 14:51:20,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-04 14:51:20,018 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:20,525 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:21,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:21,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 45 transitions. [2018-10-04 14:51:21,803 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 45 transitions. [2018-10-04 14:51:21,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-04 14:51:21,805 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:23,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 27 states and 51 transitions. [2018-10-04 14:51:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 51 transitions. [2018-10-04 14:51:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-04 14:51:23,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:24,002 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:25,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 29 states and 58 transitions. [2018-10-04 14:51:25,702 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 58 transitions. [2018-10-04 14:51:25,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-04 14:51:25,703 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:28,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 31 states and 65 transitions. [2018-10-04 14:51:28,237 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 65 transitions. [2018-10-04 14:51:28,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-04 14:51:28,238 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:31,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:31,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 33 states and 72 transitions. [2018-10-04 14:51:31,627 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 72 transitions. [2018-10-04 14:51:31,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-04 14:51:31,629 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:32,721 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:36,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:36,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 35 states and 80 transitions. [2018-10-04 14:51:36,400 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 80 transitions. [2018-10-04 14:51:36,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-04 14:51:36,402 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:38,163 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 37 states and 88 transitions. [2018-10-04 14:51:42,179 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 88 transitions. [2018-10-04 14:51:42,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-04 14:51:42,181 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:43,224 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:46,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:46,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 39 states and 96 transitions. [2018-10-04 14:51:46,936 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 96 transitions. [2018-10-04 14:51:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-04 14:51:46,938 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:48,971 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:52,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:52,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 41 states and 105 transitions. [2018-10-04 14:51:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 105 transitions. [2018-10-04 14:51:52,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-04 14:51:52,778 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:58,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 43 states and 114 transitions. [2018-10-04 14:51:58,242 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 114 transitions. [2018-10-04 14:51:58,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-04 14:51:58,246 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:59,572 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:52:04,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:52:04,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 45 states and 123 transitions. [2018-10-04 14:52:04,234 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 123 transitions. [2018-10-04 14:52:04,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-04 14:52:04,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:52:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:52:05,931 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:52:11,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:52:11,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 47 states and 133 transitions. [2018-10-04 14:52:11,633 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 133 transitions. [2018-10-04 14:52:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-04 14:52:11,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:52:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:52:13,398 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:52:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:52:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 49 states and 143 transitions. [2018-10-04 14:52:20,173 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 143 transitions. [2018-10-04 14:52:20,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-04 14:52:20,174 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:52:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:52:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:52:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:52:29,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 51 states and 153 transitions. [2018-10-04 14:52:29,982 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 153 transitions. [2018-10-04 14:52:29,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-04 14:52:29,983 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:52:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:52:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:52:41,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:52:41,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 53 states and 164 transitions. [2018-10-04 14:52:41,033 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 164 transitions. [2018-10-04 14:52:41,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-04 14:52:41,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:52:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:52:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:52:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:52:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 55 states and 174 transitions. [2018-10-04 14:52:53,065 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 174 transitions. [2018-10-04 14:52:53,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-04 14:52:53,066 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:52:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:52:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:53:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:53:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 57 states and 185 transitions. [2018-10-04 14:53:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 185 transitions. [2018-10-04 14:53:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-04 14:53:05,846 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:53:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:53:08,379 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:53:19,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:53:19,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 59 states and 197 transitions. [2018-10-04 14:53:19,552 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 197 transitions. [2018-10-04 14:53:19,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-04 14:53:19,553 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:53:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:53:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:53:34,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:53:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 61 states and 208 transitions. [2018-10-04 14:53:34,337 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 208 transitions. [2018-10-04 14:53:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-04 14:53:34,338 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:53:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:53:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:53:50,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:53:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 63 states and 219 transitions. [2018-10-04 14:53:50,486 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 219 transitions. [2018-10-04 14:53:50,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-04 14:53:50,487 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:53:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:53:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:54:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:54:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 65 states and 232 transitions. [2018-10-04 14:54:07,306 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 232 transitions. [2018-10-04 14:54:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-04 14:54:07,307 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:54:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:54:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:54:27,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:54:27,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 67 states and 244 transitions. [2018-10-04 14:54:27,091 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 244 transitions. [2018-10-04 14:54:27,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-04 14:54:27,092 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:54:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:54:31,054 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:54:50,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:54:50,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 69 states and 256 transitions. [2018-10-04 14:54:50,584 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 256 transitions. [2018-10-04 14:54:50,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-04 14:54:50,585 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:54:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:54:55,331 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:55:16,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:55:16,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 71 states and 269 transitions. [2018-10-04 14:55:16,926 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 269 transitions. [2018-10-04 14:55:16,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-04 14:55:16,926 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:55:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:55:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown