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-m [2018-10-04 15:05:31,506 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 15:05:31,508 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 15:05:31,524 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 15:05:31,525 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 15:05:31,526 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 15:05:31,528 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 15:05:31,530 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 15:05:31,533 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 15:05:31,534 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 15:05:31,536 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 15:05:31,537 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 15:05:31,538 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 15:05:31,539 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 15:05:31,540 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 15:05:31,541 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 15:05:31,542 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 15:05:31,544 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 15:05:31,546 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 15:05:31,547 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 15:05:31,548 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 15:05:31,550 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 15:05:31,552 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 15:05:31,553 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 15:05:31,553 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 15:05:31,554 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 15:05:31,555 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 15:05:31,556 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 15:05:31,556 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 15:05:31,560 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 15:05:31,560 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 15:05:31,561 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 15:05:31,561 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 15:05:31,561 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 15:05:31,562 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 15:05:31,563 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 15:05:31,563 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 15:05:31,588 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 15:05:31,588 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 15:05:31,589 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 15:05:31,589 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 15:05:31,590 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 15:05:31,590 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 15:05:31,591 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 15:05:31,591 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 15:05:31,591 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 15:05:31,591 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 15:05:31,591 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 15:05:31,592 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 15:05:31,593 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 15:05:31,593 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 15:05:31,593 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 15:05:31,593 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 15:05:31,594 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 15:05:31,594 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 15:05:31,594 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 15:05:31,594 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 15:05:31,595 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 15:05:31,596 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 15:05:31,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 15:05:31,596 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 15:05:31,596 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 15:05:31,597 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 15:05:31,597 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 15:05:31,597 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 15:05:31,597 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 15:05:31,597 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 15:05:31,661 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 15:05:31,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 15:05:31,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 15:05:31,682 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 15:05:31,683 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 15:05:31,683 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl [2018-10-04 15:05:31,684 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl' [2018-10-04 15:05:31,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 15:05:31,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 15:05:31,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 15:05:31,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 15:05:31,738 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 15:05:31,760 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 03:05:31" (1/1) ... [2018-10-04 15:05:31,773 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 03:05:31" (1/1) ... [2018-10-04 15:05:31,778 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 15:05:31,778 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 15:05:31,778 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 15:05:31,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 15:05:31,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 15:05:31,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 15:05:31,782 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 15:05:31,793 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 03:05:31" (1/1) ... [2018-10-04 15:05:31,794 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 03:05:31" (1/1) ... [2018-10-04 15:05:31,794 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 03:05:31" (1/1) ... [2018-10-04 15:05:31,794 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 03:05:31" (1/1) ... [2018-10-04 15:05:31,799 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 03:05:31" (1/1) ... [2018-10-04 15:05:31,805 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 03:05:31" (1/1) ... [2018-10-04 15:05:31,805 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 03:05:31" (1/1) ... [2018-10-04 15:05:31,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 15:05:31,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 15:05:31,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 15:05:31,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 15:05:31,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:05:31" (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 15:05:31,889 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-10-04 15:05:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-04 15:05:31,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-04 15:05:32,183 INFO L338 CfgBuilder]: Using library mode [2018-10-04 15:05:32,184 INFO L202 PluginConnector]: Adding new model Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 03:05:32 BoogieIcfgContainer [2018-10-04 15:05:32,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 15:05:32,185 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 15:05:32,185 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 15:05:32,196 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 15:05:32,196 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 03:05:32" (1/1) ... [2018-10-04 15:05:32,210 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 15:05:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-10-04 15:05:32,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-10-04 15:05:32,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 15:05:32,255 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:32,384 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 15:05:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-10-04 15:05:32,642 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-10-04 15:05:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 15:05:32,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:32,701 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 15:05:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:32,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-10-04 15:05:32,892 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-10-04 15:05:32,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 15:05:32,893 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:33,066 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 15:05:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-10-04 15:05:33,510 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-10-04 15:05:33,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 15:05:33,511 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:33,624 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 15:05:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:34,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-10-04 15:05:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-10-04 15:05:34,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-04 15:05:34,055 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:34,171 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 15:05:34,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:34,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-10-04 15:05:34,758 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-10-04 15:05:34,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 15:05:34,759 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:34,938 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 15:05:35,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-10-04 15:05:35,202 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-10-04 15:05:35,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 15:05:35,203 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:35,663 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 15:05:36,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:36,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-10-04 15:05:36,376 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-10-04 15:05:36,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 15:05:36,376 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:36,850 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 15:05:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-10-04 15:05:37,270 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-10-04 15:05:37,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-04 15:05:37,271 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:37,988 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 15:05:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:38,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-10-04 15:05:38,258 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-10-04 15:05:38,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 15:05:38,259 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:39,458 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 15:05:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:39,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-10-04 15:05:39,907 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-10-04 15:05:39,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 15:05:39,908 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:41,988 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 15:05:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 17 states and 40 transitions. [2018-10-04 15:05:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 40 transitions. [2018-10-04 15:05:42,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 15:05:42,225 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:48,388 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 15:05:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 18 states and 43 transitions. [2018-10-04 15:05:48,611 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 43 transitions. [2018-10-04 15:05:48,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-04 15:05:48,613 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:06:15,334 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 15:06:15,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:06:15,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 19 states and 46 transitions. [2018-10-04 15:06:15,631 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 46 transitions. [2018-10-04 15:06:15,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-04 15:06:15,631 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:06:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:09:03,351 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 15:09:03,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:09:03,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 20 states and 49 transitions. [2018-10-04 15:09:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 49 transitions. [2018-10-04 15:09:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-04 15:09:03,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:09:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown