java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 23:06:19,910 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 23:06:19,912 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 23:06:19,924 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 23:06:19,924 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 23:06:19,925 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 23:06:19,926 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 23:06:19,928 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 23:06:19,930 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 23:06:19,930 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 23:06:19,931 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 23:06:19,932 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 23:06:19,932 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 23:06:19,937 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 23:06:19,938 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 23:06:19,939 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 23:06:19,940 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 23:06:19,942 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 23:06:19,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 23:06:19,945 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 23:06:19,946 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 23:06:19,947 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 23:06:19,950 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 23:06:19,950 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 23:06:19,950 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 23:06:19,951 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 23:06:19,952 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 23:06:19,953 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 23:06:19,953 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 23:06:19,954 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 23:06:19,955 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 23:06:19,955 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 23:06:19,956 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 23:06:19,956 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 23:06:19,957 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 23:06:19,958 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 23:06:19,958 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 23:06:19,974 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 23:06:19,974 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 23:06:19,975 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 23:06:19,975 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 23:06:19,976 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 23:06:19,976 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 23:06:19,976 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 23:06:19,976 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 23:06:19,977 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 23:06:19,977 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 23:06:19,977 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 23:06:19,977 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 23:06:19,977 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 23:06:19,978 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 23:06:19,978 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 23:06:19,978 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 23:06:19,978 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 23:06:19,978 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 23:06:19,979 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 23:06:19,979 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 23:06:19,979 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 23:06:19,979 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 23:06:19,979 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 23:06:19,980 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 23:06:19,980 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 23:06:19,980 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 23:06:19,980 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 23:06:19,980 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 23:06:19,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 23:06:19,981 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 23:06:20,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 23:06:20,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 23:06:20,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 23:06:20,057 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 23:06:20,057 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 23:06:20,058 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl [2018-09-26 23:06:20,058 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl' [2018-09-26 23:06:20,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 23:06:20,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 23:06:20,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 23:06:20,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 23:06:20,105 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 23:06:20,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,143 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 23:06:20,143 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 23:06:20,144 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 23:06:20,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 23:06:20,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 23:06:20,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 23:06:20,147 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 23:06:20,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 23:06:20,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 23:06:20,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 23:06:20,174 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 23:06:20,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:06:20" (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 23:06:20,267 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-26 23:06:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-26 23:06:20,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-26 23:06:20,495 INFO L343 CfgBuilder]: Using library mode [2018-09-26 23:06:20,496 INFO L202 PluginConnector]: Adding new model Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 11:06:20 BoogieIcfgContainer [2018-09-26 23:06:20,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 23:06:20,497 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 23:06:20,497 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 23:06:20,509 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 23:06:20,509 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 11:06:20" (1/1) ... [2018-09-26 23:06:20,523 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 23:06:20,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-09-26 23:06:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-26 23:06:20,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-26 23:06:20,562 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:20,690 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 23:06:21,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:21,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-09-26 23:06:21,024 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-09-26 23:06:21,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 23:06:21,025 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:21,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:21,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-09-26 23:06:21,577 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-09-26 23:06:21,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 23:06:21,578 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:21,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:22,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:22,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-09-26 23:06:22,428 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-09-26 23:06:22,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 23:06:22,429 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:22,588 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 23:06:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-09-26 23:06:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-09-26 23:06:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 23:06:23,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:23,593 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:23,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-09-26 23:06:23,925 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-09-26 23:06:23,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 23:06:23,926 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:26,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:26,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-09-26 23:06:26,161 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-09-26 23:06:26,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 23:06:26,161 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:27,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-09-26 23:06:27,653 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-09-26 23:06:27,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 23:06:27,654 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:28,325 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:29,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:29,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-09-26 23:06:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-09-26 23:06:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 23:06:29,189 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:30,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:30,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-09-26 23:06:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-09-26 23:06:30,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 23:06:30,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:31,334 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:31,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-09-26 23:06:31,884 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-09-26 23:06:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-26 23:06:31,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:34,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 17 states and 40 transitions. [2018-09-26 23:06:34,586 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 40 transitions. [2018-09-26 23:06:34,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 23:06:34,588 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:40,865 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:41,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 18 states and 43 transitions. [2018-09-26 23:06:41,545 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 43 transitions. [2018-09-26 23:06:41,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-26 23:06:41,546 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:07:09,536 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:07:10,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:07:10,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 19 states and 46 transitions. [2018-09-26 23:07:10,138 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 46 transitions. [2018-09-26 23:07:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 23:07:10,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:07:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:10:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:10:01,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:10:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 20 states and 49 transitions. [2018-09-26 23:10:01,574 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 49 transitions. [2018-09-26 23:10:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-26 23:10:01,575 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:10:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown