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/real-life/Elevator.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-09-30 21:32:01,912 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 21:32:01,914 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 21:32:01,930 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 21:32:01,931 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 21:32:01,932 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 21:32:01,933 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 21:32:01,935 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 21:32:01,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 21:32:01,938 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 21:32:01,939 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 21:32:01,939 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 21:32:01,940 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 21:32:01,941 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 21:32:01,942 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 21:32:01,943 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 21:32:01,944 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 21:32:01,946 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 21:32:01,948 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 21:32:01,950 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 21:32:01,951 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 21:32:01,953 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 21:32:01,956 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 21:32:01,956 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 21:32:01,956 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 21:32:01,957 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 21:32:01,958 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 21:32:01,959 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 21:32:01,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 21:32:01,962 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 21:32:01,962 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 21:32:01,963 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 21:32:01,963 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 21:32:01,963 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 21:32:01,964 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 21:32:01,965 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 21:32:01,966 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 21:32:01,982 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 21:32:01,982 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 21:32:01,983 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 21:32:01,983 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 21:32:01,984 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 21:32:01,984 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 21:32:01,984 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 21:32:01,985 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 21:32:01,985 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 21:32:01,985 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 21:32:01,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 21:32:01,985 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 21:32:01,986 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 21:32:01,986 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 21:32:01,986 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 21:32:01,986 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 21:32:01,986 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 21:32:01,987 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 21:32:01,987 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 21:32:01,987 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 21:32:01,987 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 21:32:01,987 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 21:32:01,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:32:01,988 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 21:32:01,988 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 21:32:01,988 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 21:32:01,988 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 21:32:01,989 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 21:32:01,989 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 21:32:01,989 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 21:32:02,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 21:32:02,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 21:32:02,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 21:32:02,078 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 21:32:02,079 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 21:32:02,080 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator.bpl [2018-09-30 21:32:02,080 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/Elevator.bpl' [2018-09-30 21:32:02,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 21:32:02,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 21:32:02,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 21:32:02,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 21:32:02,181 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 21:32:02,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (1/1) ... [2018-09-30 21:32:02,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (1/1) ... [2018-09-30 21:32:02,229 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 21:32:02,230 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 21:32:02,230 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 21:32:02,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 21:32:02,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 21:32:02,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 21:32:02,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 21:32:02,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (1/1) ... [2018-09-30 21:32:02,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (1/1) ... [2018-09-30 21:32:02,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (1/1) ... [2018-09-30 21:32:02,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (1/1) ... [2018-09-30 21:32:02,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (1/1) ... [2018-09-30 21:32:02,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (1/1) ... [2018-09-30 21:32:02,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (1/1) ... [2018-09-30 21:32:02,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 21:32:02,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 21:32:02,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 21:32:02,289 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 21:32:02,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Elevator.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:32:02" (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 21:32:02,381 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Elevator given in one single declaration [2018-09-30 21:32:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure Elevator [2018-09-30 21:32:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure Elevator [2018-09-30 21:32:03,932 INFO L345 CfgBuilder]: Using library mode [2018-09-30 21:32:03,933 INFO L202 PluginConnector]: Adding new model Elevator.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:32:03 BoogieIcfgContainer [2018-09-30 21:32:03,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 21:32:03,934 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 21:32:03,935 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 21:32:03,947 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 21:32:03,947 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Elevator.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:32:03" (1/1) ... [2018-09-30 21:32:03,964 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 21:32:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:04,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-30 21:32:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-30 21:32:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 21:32:04,007 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:04,231 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 21:32:04,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:04,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2018-09-30 21:32:04,835 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-09-30 21:32:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 21:32:04,835 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:05,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:05,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 9 states and 13 transitions. [2018-09-30 21:32:05,748 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2018-09-30 21:32:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-30 21:32:05,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:06,145 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 21:32:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:07,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 13 states and 25 transitions. [2018-09-30 21:32:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 25 transitions. [2018-09-30 21:32:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-30 21:32:07,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 17 states and 36 transitions. [2018-09-30 21:32:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 36 transitions. [2018-09-30 21:32:09,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-30 21:32:09,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:13,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 44 transitions. [2018-09-30 21:32:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 44 transitions. [2018-09-30 21:32:13,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 21:32:13,095 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:20,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 26 states and 75 transitions. [2018-09-30 21:32:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 75 transitions. [2018-09-30 21:32:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 21:32:20,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:35,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:35,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 34 states and 110 transitions. [2018-09-30 21:32:35,318 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 110 transitions. [2018-09-30 21:32:35,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 21:32:35,319 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:37,015 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:32:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:32:43,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 38 states and 123 transitions. [2018-09-30 21:32:43,164 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 123 transitions. [2018-09-30 21:32:43,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-30 21:32:43,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:32:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:32:47,628 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:33:09,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:33:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 44 states and 154 transitions. [2018-09-30 21:33:09,769 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 154 transitions. [2018-09-30 21:33:09,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-30 21:33:09,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:33:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:33:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:33:22,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:33:22,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 46 states and 163 transitions. [2018-09-30 21:33:22,059 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 163 transitions. [2018-09-30 21:33:22,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-30 21:33:22,060 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:33:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:33:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:35:44,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:35:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 60 states and 234 transitions. [2018-09-30 21:35:44,722 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 234 transitions. [2018-09-30 21:35:44,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-30 21:35:44,724 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:35:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:36:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown