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.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 13:28:50,086 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 13:28:50,088 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 13:28:50,100 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 13:28:50,100 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 13:28:50,101 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 13:28:50,103 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 13:28:50,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 13:28:50,106 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 13:28:50,107 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 13:28:50,108 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 13:28:50,108 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 13:28:50,109 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 13:28:50,110 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 13:28:50,111 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 13:28:50,112 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 13:28:50,112 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 13:28:50,114 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 13:28:50,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 13:28:50,118 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 13:28:50,119 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 13:28:50,120 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 13:28:50,123 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 13:28:50,123 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 13:28:50,123 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 13:28:50,124 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 13:28:50,125 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 13:28:50,126 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 13:28:50,127 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 13:28:50,131 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 13:28:50,133 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 13:28:50,134 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 13:28:50,134 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 13:28:50,134 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 13:28:50,136 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 13:28:50,137 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 13:28:50,137 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-04 13:28:50,155 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 13:28:50,156 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 13:28:50,156 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 13:28:50,157 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 13:28:50,157 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 13:28:50,157 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 13:28:50,158 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 13:28:50,158 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 13:28:50,158 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 13:28:50,158 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 13:28:50,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 13:28:50,159 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 13:28:50,159 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 13:28:50,159 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 13:28:50,159 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 13:28:50,159 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 13:28:50,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 13:28:50,160 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 13:28:50,160 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 13:28:50,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 13:28:50,160 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 13:28:50,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 13:28:50,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 13:28:50,161 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 13:28:50,161 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 13:28:50,161 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 13:28:50,161 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 13:28:50,162 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 13:28:50,162 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 13:28:50,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 13:28:50,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 13:28:50,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 13:28:50,234 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 13:28:50,235 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 13:28:50,236 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl [2018-10-04 13:28:50,236 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl' [2018-10-04 13:28:50,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 13:28:50,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 13:28:50,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 13:28:50,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 13:28:50,287 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 13:28:50,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,328 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 13:28:50,328 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 13:28:50,329 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 13:28:50,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 13:28:50,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 13:28:50,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 13:28:50,332 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 13:28:50,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 13:28:50,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 13:28:50,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 13:28:50,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 13:28:50,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:28:50" (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 13:28:50,431 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-10-04 13:28:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-04 13:28:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-04 13:28:50,789 INFO L338 CfgBuilder]: Using library mode [2018-10-04 13:28:50,790 INFO L202 PluginConnector]: Adding new model Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:28:50 BoogieIcfgContainer [2018-10-04 13:28:50,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 13:28:50,790 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 13:28:50,791 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 13:28:50,806 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 13:28:50,806 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:28:50" (1/1) ... [2018-10-04 13:28:50,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 13:28:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:50,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-10-04 13:28:50,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-10-04 13:28:50,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 13:28:50,859 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:51,038 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 13:28:51,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:51,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-10-04 13:28:51,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-10-04 13:28:51,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 13:28:51,262 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:51,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:28:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:51,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-10-04 13:28:51,563 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-10-04 13:28:51,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 13:28:51,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:51,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:28:51,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:51,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-10-04 13:28:51,913 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-10-04 13:28:51,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 13:28:51,913 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:52,049 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 13:28:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:52,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-10-04 13:28:52,186 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-10-04 13:28:52,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-04 13:28:52,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:52,413 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:28:52,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:52,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-10-04 13:28:52,504 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-10-04 13:28:52,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 13:28:52,505 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:53,024 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2018-10-04 13:28:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:28:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:53,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-10-04 13:28:53,292 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-10-04 13:28:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 13:28:53,293 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:28:53,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:53,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-10-04 13:28:53,912 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-10-04 13:28:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 13:28:53,912 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:54,510 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:28:54,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-10-04 13:28:54,667 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-10-04 13:28:54,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-04 13:28:54,668 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:55,803 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:28:56,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:56,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-10-04 13:28:56,088 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-10-04 13:28:56,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 13:28:56,089 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:28:58,199 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:28:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:28:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-10-04 13:28:58,291 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-10-04 13:28:58,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 13:28:58,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:28:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:29:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:29:01,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:29:01,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 17 states and 40 transitions. [2018-10-04 13:29:01,854 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 40 transitions. [2018-10-04 13:29:01,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 13:29:01,855 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:29:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:29:12,310 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:29:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:29:12,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 18 states and 43 transitions. [2018-10-04 13:29:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 43 transitions. [2018-10-04 13:29:12,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-04 13:29:12,394 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:29:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:29:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:29:51,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:29:51,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 19 states and 46 transitions. [2018-10-04 13:29:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 46 transitions. [2018-10-04 13:29:51,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-04 13:29:51,944 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:29:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown