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 0.1.23-00a8621 [2018-09-30 12:06:55,576 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 12:06:55,578 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 12:06:55,592 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 12:06:55,593 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 12:06:55,594 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 12:06:55,595 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 12:06:55,596 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 12:06:55,598 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 12:06:55,599 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 12:06:55,600 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 12:06:55,600 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 12:06:55,601 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 12:06:55,602 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 12:06:55,603 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 12:06:55,604 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 12:06:55,605 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 12:06:55,606 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 12:06:55,608 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 12:06:55,610 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 12:06:55,611 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 12:06:55,613 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 12:06:55,615 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 12:06:55,615 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 12:06:55,615 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 12:06:55,616 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 12:06:55,617 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 12:06:55,618 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 12:06:55,619 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 12:06:55,620 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 12:06:55,620 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 12:06:55,621 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 12:06:55,621 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 12:06:55,621 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 12:06:55,622 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 12:06:55,623 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 12:06:55,623 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 [2018-09-30 12:06:55,643 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 12:06:55,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 12:06:55,645 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 12:06:55,645 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 12:06:55,646 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 12:06:55,646 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 12:06:55,646 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 12:06:55,646 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 12:06:55,649 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 12:06:55,650 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 12:06:55,650 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 12:06:55,650 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 12:06:55,650 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 12:06:55,650 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 12:06:55,651 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 12:06:55,651 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 12:06:55,651 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 12:06:55,651 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 12:06:55,651 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 12:06:55,652 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 12:06:55,652 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 12:06:55,652 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 12:06:55,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 12:06:55,654 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 12:06:55,654 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 12:06:55,654 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 12:06:55,654 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 12:06:55,654 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 12:06:55,655 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 12:06:55,655 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 12:06:55,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 12:06:55,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 12:06:55,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 12:06:55,719 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 12:06:55,719 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 12:06:55,720 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl [2018-09-30 12:06:55,721 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-sophisticated.bpl' [2018-09-30 12:06:55,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 12:06:55,768 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 12:06:55,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 12:06:55,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 12:06:55,770 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 12:06:55,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (1/1) ... [2018-09-30 12:06:55,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (1/1) ... [2018-09-30 12:06:55,807 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 12:06:55,807 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 12:06:55,807 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 12:06:55,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 12:06:55,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 12:06:55,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 12:06:55,810 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 12:06:55,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (1/1) ... [2018-09-30 12:06:55,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (1/1) ... [2018-09-30 12:06:55,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (1/1) ... [2018-09-30 12:06:55,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (1/1) ... [2018-09-30 12:06:55,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (1/1) ... [2018-09-30 12:06:55,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (1/1) ... [2018-09-30 12:06:55,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (1/1) ... [2018-09-30 12:06:55,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 12:06:55,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 12:06:55,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 12:06:55,833 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 12:06:55,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:06:55" (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 [2018-09-30 12:06:55,907 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-30 12:06:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-30 12:06:55,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-30 12:06:56,207 INFO L345 CfgBuilder]: Using library mode [2018-09-30 12:06:56,208 INFO L202 PluginConnector]: Adding new model Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 12:06:56 BoogieIcfgContainer [2018-09-30 12:06:56,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 12:06:56,209 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 12:06:56,209 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 12:06:56,221 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 12:06:56,221 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Luxembourg-sophisticated.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 12:06:56" (1/1) ... [2018-09-30 12:06:56,236 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 12:06:56,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:56,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-09-30 12:06:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-30 12:06:56,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 12:06:56,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:56,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:56,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:56,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 7 states and 10 transitions. [2018-09-30 12:06:56,713 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2018-09-30 12:06:56,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 12:06:56,714 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:57,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-09-30 12:06:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-09-30 12:06:57,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 12:06:57,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:57,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-09-30 12:06:57,773 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-09-30 12:06:57,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 12:06:57,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:57,863 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:58,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-09-30 12:06:58,577 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-09-30 12:06:58,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-30 12:06:58,578 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:58,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:58,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-09-30 12:06:58,987 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-09-30 12:06:58,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 12:06:58,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:59,137 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:59,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-09-30 12:06:59,473 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-09-30 12:06:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-30 12:06:59,475 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:59,854 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-09-30 12:07:00,825 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-09-30 12:07:00,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-30 12:07:00,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:01,293 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:01,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-09-30 12:07:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-09-30 12:07:01,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-30 12:07:01,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:02,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:02,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-09-30 12:07:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-09-30 12:07:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-30 12:07:02,752 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:04,074 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:04,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-09-30 12:07:04,482 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-09-30 12:07:04,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 12:07:04,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:06,551 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:06,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:06,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 17 states and 40 transitions. [2018-09-30 12:07:06,931 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 40 transitions. [2018-09-30 12:07:06,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 12:07:06,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:13,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:13,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 18 states and 43 transitions. [2018-09-30 12:07:13,441 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 43 transitions. [2018-09-30 12:07:13,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 12:07:13,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:07:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:07:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:07:41,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 19 states and 46 transitions. [2018-09-30 12:07:41,553 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 46 transitions. [2018-09-30 12:07:41,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 12:07:41,553 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:07:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:10:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:10:30,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:10:30,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 20 states and 49 transitions. [2018-09-30 12:10:30,867 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 49 transitions. [2018-09-30 12:10:30,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-30 12:10:30,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:10:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown