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 0.1.23-9f4048f [2018-10-04 13:55:28,544 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 13:55:28,546 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 13:55:28,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 13:55:28,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 13:55:28,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 13:55:28,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 13:55:28,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 13:55:28,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 13:55:28,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 13:55:28,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 13:55:28,569 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 13:55:28,570 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 13:55:28,571 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 13:55:28,572 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 13:55:28,573 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 13:55:28,574 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 13:55:28,576 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 13:55:28,578 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 13:55:28,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 13:55:28,581 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 13:55:28,582 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 13:55:28,584 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 13:55:28,585 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 13:55:28,585 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 13:55:28,586 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 13:55:28,587 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 13:55:28,588 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 13:55:28,588 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 13:55:28,590 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 13:55:28,590 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 13:55:28,591 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 13:55:28,591 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 13:55:28,591 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 13:55:28,592 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 13:55:28,593 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 13:55:28,593 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 13:55:28,620 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 13:55:28,620 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 13:55:28,621 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 13:55:28,621 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 13:55:28,622 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 13:55:28,622 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 13:55:28,622 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 13:55:28,623 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 13:55:28,626 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 13:55:28,626 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 13:55:28,626 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 13:55:28,626 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 13:55:28,626 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 13:55:28,627 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 13:55:28,627 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 13:55:28,627 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 13:55:28,627 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 13:55:28,628 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 13:55:28,628 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 13:55:28,628 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 13:55:28,628 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 13:55:28,628 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 13:55:28,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 13:55:28,629 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 13:55:28,629 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 13:55:28,629 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 13:55:28,629 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 13:55:28,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 13:55:28,631 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 13:55:28,631 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 13:55:28,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 13:55:28,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 13:55:28,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 13:55:28,729 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 13:55:28,730 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 13:55:28,730 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl [2018-10-04 13:55:28,731 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl' [2018-10-04 13:55:28,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 13:55:28,779 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 13:55:28,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 13:55:28,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 13:55:28,780 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 13:55:28,801 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 01:55:28" (1/1) ... [2018-10-04 13:55:28,814 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 01:55:28" (1/1) ... [2018-10-04 13:55:28,819 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 13:55:28,819 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 13:55:28,819 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 13:55:28,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 13:55:28,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 13:55:28,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 13:55:28,823 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 13:55:28,834 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 01:55:28" (1/1) ... [2018-10-04 13:55:28,835 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 01:55:28" (1/1) ... [2018-10-04 13:55:28,835 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 01:55:28" (1/1) ... [2018-10-04 13:55:28,836 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 01:55:28" (1/1) ... [2018-10-04 13:55:28,838 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 01:55:28" (1/1) ... [2018-10-04 13:55:28,842 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 01:55:28" (1/1) ... [2018-10-04 13:55:28,843 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 01:55:28" (1/1) ... [2018-10-04 13:55:28,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 13:55:28,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 13:55:28,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 13:55:28,846 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 13:55:28,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:55:28" (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 13:55:28,921 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-10-04 13:55:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-04 13:55:28,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-04 13:55:29,150 INFO L338 CfgBuilder]: Using library mode [2018-10-04 13:55:29,151 INFO L202 PluginConnector]: Adding new model Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:55:29 BoogieIcfgContainer [2018-10-04 13:55:29,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 13:55:29,152 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 13:55:29,152 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 13:55:29,163 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 13:55:29,164 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 01:55:29" (1/1) ... [2018-10-04 13:55:29,183 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 13:55:29,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-10-04 13:55:29,220 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-10-04 13:55:29,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 13:55:29,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:29,350 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 13:55:29,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-10-04 13:55:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-10-04 13:55:29,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 13:55:29,597 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:29,652 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 13:55:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-10-04 13:55:29,857 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-10-04 13:55:29,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 13:55:29,858 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:30,072 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 13:55:30,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:30,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-10-04 13:55:30,516 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-10-04 13:55:30,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 13:55:30,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:30,627 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 13:55:31,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:31,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-10-04 13:55:31,028 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-10-04 13:55:31,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-04 13:55:31,028 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:31,157 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 13:55:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-10-04 13:55:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-10-04 13:55:31,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 13:55:31,756 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:31,933 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 13:55:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:32,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-10-04 13:55:32,201 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-10-04 13:55:32,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 13:55:32,201 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:32,677 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 13:55:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-10-04 13:55:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-10-04 13:55:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 13:55:33,365 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:33,855 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 13:55:34,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-10-04 13:55:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-10-04 13:55:34,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-04 13:55:34,290 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:34,899 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 13:55:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:35,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-10-04 13:55:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-10-04 13:55:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 13:55:35,128 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:36,576 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 13:55:37,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:37,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-10-04 13:55:37,298 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-10-04 13:55:37,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 13:55:37,299 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:39,739 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 13:55:40,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 17 states and 40 transitions. [2018-10-04 13:55:40,011 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 40 transitions. [2018-10-04 13:55:40,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 13:55:40,013 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:55:46,242 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 13:55:46,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:55:46,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 18 states and 43 transitions. [2018-10-04 13:55:46,474 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 43 transitions. [2018-10-04 13:55:46,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-04 13:55:46,476 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:55:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:56:14,262 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 13:56:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:56:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 19 states and 46 transitions. [2018-10-04 13:56:14,544 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 46 transitions. [2018-10-04 13:56:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-04 13:56:14,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:56:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:59:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:59:04,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:59:04,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 20 states and 49 transitions. [2018-10-04 13:59:04,485 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 49 transitions. [2018-10-04 13:59:04,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-04 13:59:04,486 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:59:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown