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/gr2006.c.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b2fde6a [2018-09-28 11:36:11,112 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-28 11:36:11,114 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-28 11:36:11,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-28 11:36:11,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-28 11:36:11,129 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-28 11:36:11,130 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-28 11:36:11,133 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-28 11:36:11,135 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-28 11:36:11,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-28 11:36:11,138 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-28 11:36:11,138 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-28 11:36:11,141 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-28 11:36:11,143 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-28 11:36:11,148 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-28 11:36:11,149 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-28 11:36:11,150 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-28 11:36:11,155 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-28 11:36:11,160 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-28 11:36:11,161 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-28 11:36:11,162 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-28 11:36:11,163 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-28 11:36:11,166 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-28 11:36:11,166 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-28 11:36:11,166 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-28 11:36:11,167 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-28 11:36:11,168 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-28 11:36:11,169 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-28 11:36:11,169 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-28 11:36:11,170 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-28 11:36:11,171 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-28 11:36:11,171 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-28 11:36:11,171 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-28 11:36:11,172 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-28 11:36:11,172 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-28 11:36:11,173 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-28 11:36:11,173 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 [2018-09-28 11:36:11,194 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-28 11:36:11,194 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-28 11:36:11,197 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-28 11:36:11,197 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-28 11:36:11,201 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-28 11:36:11,201 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-28 11:36:11,202 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-28 11:36:11,202 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-28 11:36:11,202 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-28 11:36:11,202 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-28 11:36:11,203 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-28 11:36:11,204 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-28 11:36:11,204 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-28 11:36:11,204 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-28 11:36:11,204 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-28 11:36:11,204 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-28 11:36:11,205 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-28 11:36:11,205 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-28 11:36:11,205 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-28 11:36:11,205 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-28 11:36:11,206 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-28 11:36:11,207 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-28 11:36:11,207 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-28 11:36:11,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-28 11:36:11,207 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-28 11:36:11,208 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-28 11:36:11,208 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-28 11:36:11,208 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-28 11:36:11,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-28 11:36:11,208 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-28 11:36:11,253 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-28 11:36:11,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-28 11:36:11,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-28 11:36:11,276 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-28 11:36:11,276 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-28 11:36:11,277 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gr2006.c.i_4.bpl [2018-09-28 11:36:11,277 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gr2006.c.i_4.bpl' [2018-09-28 11:36:11,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-28 11:36:11,338 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-28 11:36:11,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-28 11:36:11,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-28 11:36:11,339 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-28 11:36:11,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-28 11:36:11,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-28 11:36:11,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-28 11:36:11,375 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-28 11:36:11,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-28 11:36:11,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-28 11:36:11,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-28 11:36:11,396 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-28 11:36:11,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:36:11" (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 [2018-09-28 11:36:11,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-28 11:36:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-28 11:36:11,833 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-28 11:36:11,834 INFO L202 PluginConnector]: Adding new model gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:36:11 BoogieIcfgContainer [2018-09-28 11:36:11,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-28 11:36:11,835 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-28 11:36:11,835 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-28 11:36:11,845 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-28 11:36:11,845 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:36:11" (1/1) ... [2018-09-28 11:36:11,860 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 11:36:11,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:11,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-28 11:36:11,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-28 11:36:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-28 11:36:11,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:12,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:12,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-09-28 11:36:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-09-28 11:36:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-28 11:36:12,645 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 9 states and 13 transitions. [2018-09-28 11:36:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2018-09-28 11:36:13,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-28 11:36:13,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:14,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:14,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 11 states and 16 transitions. [2018-09-28 11:36:14,554 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2018-09-28 11:36:14,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:36:14,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:15,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2018-09-28 11:36:15,200 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2018-09-28 11:36:15,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-28 11:36:15,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:15,291 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:16,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2018-09-28 11:36:16,405 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2018-09-28 11:36:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:36:16,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:17,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2018-09-28 11:36:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2018-09-28 11:36:17,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:36:17,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:18,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2018-09-28 11:36:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2018-09-28 11:36:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-28 11:36:18,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2018-09-28 11:36:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2018-09-28 11:36:19,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-28 11:36:19,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2018-09-28 11:36:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2018-09-28 11:36:20,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-28 11:36:20,759 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:20,883 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:21,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:21,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2018-09-28 11:36:21,964 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2018-09-28 11:36:21,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-28 11:36:21,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:23,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2018-09-28 11:36:23,094 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2018-09-28 11:36:23,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 11:36:23,095 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:23,634 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:25,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2018-09-28 11:36:25,234 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2018-09-28 11:36:25,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-28 11:36:25,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:25,372 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:27,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 31 states and 46 transitions. [2018-09-28 11:36:27,597 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2018-09-28 11:36:27,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-28 11:36:27,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:29,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2018-09-28 11:36:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2018-09-28 11:36:29,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-28 11:36:29,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:32,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:32,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 52 transitions. [2018-09-28 11:36:32,048 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2018-09-28 11:36:32,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-28 11:36:32,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:33,163 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:36,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:36,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 55 transitions. [2018-09-28 11:36:36,030 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2018-09-28 11:36:36,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-28 11:36:36,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:40,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:40,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2018-09-28 11:36:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2018-09-28 11:36:40,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-28 11:36:40,036 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2018-09-28 11:36:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2018-09-28 11:36:44,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-28 11:36:44,505 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:44,652 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:49,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:49,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 43 states and 64 transitions. [2018-09-28 11:36:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2018-09-28 11:36:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-28 11:36:49,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:36:55,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:36:55,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 45 states and 67 transitions. [2018-09-28 11:36:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2018-09-28 11:36:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-28 11:36:55,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:36:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:36:55,708 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:37:02,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:37:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 47 states and 70 transitions. [2018-09-28 11:37:02,892 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 70 transitions. [2018-09-28 11:37:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-28 11:37:02,893 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:37:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:37:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:37:12,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:37:12,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 49 states and 73 transitions. [2018-09-28 11:37:12,413 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2018-09-28 11:37:12,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-28 11:37:12,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:37:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:37:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:37:22,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:37:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 51 states and 76 transitions. [2018-09-28 11:37:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2018-09-28 11:37:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-28 11:37:22,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:37:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:37:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:37:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:37:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 53 states and 79 transitions. [2018-09-28 11:37:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 79 transitions. [2018-09-28 11:37:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-28 11:37:35,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:37:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:37:35,679 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:37:50,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:37:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 55 states and 82 transitions. [2018-09-28 11:37:50,282 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2018-09-28 11:37:50,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-28 11:37:50,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:37:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:37:50,533 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:38:07,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:38:07,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 57 states and 85 transitions. [2018-09-28 11:38:07,797 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 85 transitions. [2018-09-28 11:38:07,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-28 11:38:07,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:38:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:38:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:38:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:38:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 59 states and 88 transitions. [2018-09-28 11:38:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 88 transitions. [2018-09-28 11:38:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-28 11:38:28,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:38:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:38:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:38:54,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:38:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 61 states and 91 transitions. [2018-09-28 11:38:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 91 transitions. [2018-09-28 11:38:54,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-28 11:38:54,040 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:38:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:38:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:39:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:39:23,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 63 states and 94 transitions. [2018-09-28 11:39:23,135 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 94 transitions. [2018-09-28 11:39:23,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-28 11:39:23,135 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:39:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:39:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:39:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:39:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 65 states and 97 transitions. [2018-09-28 11:39:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 97 transitions. [2018-09-28 11:39:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-28 11:39:57,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:39:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:39:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:40:37,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:40:37,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 67 states and 100 transitions. [2018-09-28 11:40:37,067 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2018-09-28 11:40:37,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-28 11:40:37,068 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:40:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:40:37,739 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