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/20170304-DifficultPathPrograms/nested.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 22:56:53,350 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 22:56:53,352 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 22:56:53,365 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 22:56:53,366 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 22:56:53,367 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 22:56:53,368 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 22:56:53,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 22:56:53,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 22:56:53,374 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 22:56:53,375 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 22:56:53,377 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 22:56:53,386 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 22:56:53,389 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 22:56:53,390 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 22:56:53,391 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 22:56:53,391 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 22:56:53,395 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 22:56:53,398 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 22:56:53,399 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 22:56:53,401 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 22:56:53,402 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 22:56:53,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 22:56:53,408 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 22:56:53,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 22:56:53,410 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 22:56:53,412 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 22:56:53,413 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 22:56:53,415 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 22:56:53,416 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 22:56:53,417 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 22:56:53,417 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 22:56:53,418 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 22:56:53,418 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 22:56:53,419 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 22:56:53,420 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 22:56:53,420 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 [2018-09-26 22:56:53,436 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 22:56:53,436 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 22:56:53,437 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 22:56:53,437 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 22:56:53,438 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 22:56:53,438 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 22:56:53,439 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 22:56:53,439 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 22:56:53,439 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 22:56:53,439 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 22:56:53,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 22:56:53,440 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 22:56:53,440 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 22:56:53,440 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 22:56:53,440 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 22:56:53,440 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 22:56:53,440 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 22:56:53,441 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 22:56:53,441 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 22:56:53,441 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 22:56:53,441 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 22:56:53,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 22:56:53,442 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:56:53,442 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 22:56:53,442 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 22:56:53,443 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 22:56:53,444 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 22:56:53,444 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 22:56:53,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 22:56:53,444 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 22:56:53,501 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 22:56:53,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 22:56:53,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 22:56:53,527 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 22:56:53,527 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 22:56:53,528 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl [2018-09-26 22:56:53,528 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl' [2018-09-26 22:56:53,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 22:56:53,583 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 22:56:53,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 22:56:53,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 22:56:53,585 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 22:56:53,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (1/1) ... [2018-09-26 22:56:53,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (1/1) ... [2018-09-26 22:56:53,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 22:56:53,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 22:56:53,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 22:56:53,634 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 22:56:53,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (1/1) ... [2018-09-26 22:56:53,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (1/1) ... [2018-09-26 22:56:53,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (1/1) ... [2018-09-26 22:56:53,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (1/1) ... [2018-09-26 22:56:53,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (1/1) ... [2018-09-26 22:56:53,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (1/1) ... [2018-09-26 22:56:53,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (1/1) ... [2018-09-26 22:56:53,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 22:56:53,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 22:56:53,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 22:56:53,661 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 22:56:53,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:56:53" (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 [2018-09-26 22:56:53,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 22:56:53,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 22:56:54,021 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 22:56:54,021 INFO L202 PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:56:54 BoogieIcfgContainer [2018-09-26 22:56:54,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 22:56:54,023 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 22:56:54,023 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 22:56:54,036 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 22:56:54,036 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:56:54" (1/1) ... [2018-09-26 22:56:54,051 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 22:56:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-09-26 22:56:54,089 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-09-26 22:56:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 22:56:54,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:54,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:54,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-09-26 22:56:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-09-26 22:56:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:56:54,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:54,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:56,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2018-09-26 22:56:56,429 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2018-09-26 22:56:56,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:56:56,433 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:57,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:57,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2018-09-26 22:56:57,587 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2018-09-26 22:56:57,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:56:57,588 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:59,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2018-09-26 22:56:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2018-09-26 22:56:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 22:56:59,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:59,932 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:57:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2018-09-26 22:57:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2018-09-26 22:57:00,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 22:57:00,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:57:01,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:01,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2018-09-26 22:57:01,550 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2018-09-26 22:57:01,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 22:57:01,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:57:02,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:02,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 23 states and 38 transitions. [2018-09-26 22:57:02,903 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2018-09-26 22:57:02,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-26 22:57:02,904 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:03,129 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:57:03,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:03,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 25 states and 42 transitions. [2018-09-26 22:57:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2018-09-26 22:57:03,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-26 22:57:03,853 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:03,978 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:57:05,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:05,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2018-09-26 22:57:05,030 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2018-09-26 22:57:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-26 22:57:05,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:57:06,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:06,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2018-09-26 22:57:06,254 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2018-09-26 22:57:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-26 22:57:06,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:06,369 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:57:07,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:07,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 53 transitions. [2018-09-26 22:57:07,226 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2018-09-26 22:57:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-26 22:57:07,229 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:07,340 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-09-26 22:57:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 55 states and 88 transitions. [2018-09-26 22:57:14,166 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 88 transitions. [2018-09-26 22:57:14,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-26 22:57:14,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:14,230 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-26 22:57:25,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:25,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 53 states and 66 transitions. [2018-09-26 22:57:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2018-09-26 22:57:25,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-26 22:57:25,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-09-26 22:57:47,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:57:47,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 77 states and 101 transitions. [2018-09-26 22:57:47,776 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2018-09-26 22:57:47,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-26 22:57:47,777 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:57:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:57:47,890 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2018-09-26 22:58:23,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:58:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 77 states and 91 transitions. [2018-09-26 22:58:23,100 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2018-09-26 22:58:23,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-09-26 22:58:23,101 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:58:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:58:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 0 proven. 738 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-26 22:59:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:59:22,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 101 states and 126 transitions. [2018-09-26 22:59:22,962 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2018-09-26 22:59:22,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-26 22:59:22,964 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:59:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:59:23,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 8 proven. 66 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2018-09-26 23:00:56,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:00:56,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 101 states and 116 transitions. [2018-09-26 23:00:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2018-09-26 23:00:56,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-09-26 23:00:56,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:00:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:00:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 1472 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown