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/seq.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b2fde6a [2018-09-28 11:44:22,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-28 11:44:22,401 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-28 11:44:22,413 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-28 11:44:22,413 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-28 11:44:22,414 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-28 11:44:22,416 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-28 11:44:22,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-28 11:44:22,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-28 11:44:22,420 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-28 11:44:22,421 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-28 11:44:22,421 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-28 11:44:22,422 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-28 11:44:22,423 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-28 11:44:22,424 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-28 11:44:22,425 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-28 11:44:22,425 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-28 11:44:22,427 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-28 11:44:22,429 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-28 11:44:22,431 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-28 11:44:22,432 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-28 11:44:22,433 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-28 11:44:22,435 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-28 11:44:22,435 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-28 11:44:22,436 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-28 11:44:22,437 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-28 11:44:22,438 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-28 11:44:22,439 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-28 11:44:22,439 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-28 11:44:22,441 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-28 11:44:22,441 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-28 11:44:22,442 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-28 11:44:22,442 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-28 11:44:22,442 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-28 11:44:22,443 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-28 11:44:22,444 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-28 11:44:22,444 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 [2018-09-28 11:44:22,459 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-28 11:44:22,460 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-28 11:44:22,460 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-28 11:44:22,461 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-28 11:44:22,461 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-28 11:44:22,461 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-28 11:44:22,462 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-28 11:44:22,462 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-28 11:44:22,462 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-28 11:44:22,462 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-28 11:44:22,462 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-28 11:44:22,463 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-28 11:44:22,463 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-28 11:44:22,463 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-28 11:44:22,463 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-28 11:44:22,463 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-28 11:44:22,464 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-28 11:44:22,464 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-28 11:44:22,464 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-28 11:44:22,464 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-28 11:44:22,464 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-28 11:44:22,464 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-28 11:44:22,465 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-28 11:44:22,465 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-28 11:44:22,465 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-28 11:44:22,465 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-28 11:44:22,466 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-28 11:44:22,466 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-28 11:44:22,466 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-28 11:44:22,466 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-28 11:44:22,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-28 11:44:22,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-28 11:44:22,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-28 11:44:22,526 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-28 11:44:22,527 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-28 11:44:22,528 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/seq.i_4.bpl [2018-09-28 11:44:22,528 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/seq.i_4.bpl' [2018-09-28 11:44:22,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-28 11:44:22,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-28 11:44:22,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-28 11:44:22,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-28 11:44:22,592 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-28 11:44:22,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (1/1) ... [2018-09-28 11:44:22,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (1/1) ... [2018-09-28 11:44:22,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-28 11:44:22,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-28 11:44:22,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-28 11:44:22,636 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-28 11:44:22,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (1/1) ... [2018-09-28 11:44:22,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (1/1) ... [2018-09-28 11:44:22,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (1/1) ... [2018-09-28 11:44:22,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (1/1) ... [2018-09-28 11:44:22,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (1/1) ... [2018-09-28 11:44:22,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (1/1) ... [2018-09-28 11:44:22,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (1/1) ... [2018-09-28 11:44:22,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-28 11:44:22,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-28 11:44:22,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-28 11:44:22,667 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-28 11:44:22,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:44:22" (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 [2018-09-28 11:44:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-28 11:44:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-28 11:44:23,021 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-28 11:44:23,021 INFO L202 PluginConnector]: Adding new model seq.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:44:23 BoogieIcfgContainer [2018-09-28 11:44:23,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-28 11:44:23,022 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-28 11:44:23,022 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-28 11:44:23,034 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-28 11:44:23,034 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:44:23" (1/1) ... [2018-09-28 11:44:23,053 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 11:44:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:23,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-09-28 11:44:23,093 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-28 11:44:23,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-28 11:44:23,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:23,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:23,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-09-28 11:44:23,996 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-09-28 11:44:23,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-28 11:44:23,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:25,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:25,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 12 states and 19 transitions. [2018-09-28 11:44:25,686 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 19 transitions. [2018-09-28 11:44:25,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:44:25,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:25,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:26,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:26,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 16 states and 27 transitions. [2018-09-28 11:44:26,984 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 27 transitions. [2018-09-28 11:44:26,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-28 11:44:26,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:27,136 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-09-28 11:44:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-09-28 11:44:28,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:44:28,913 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:29,043 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:30,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2018-09-28 11:44:30,656 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-09-28 11:44:30,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:44:30,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:32,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:32,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-09-28 11:44:32,616 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-09-28 11:44:32,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-28 11:44:32,618 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:35,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 28 states and 44 transitions. [2018-09-28 11:44:35,772 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2018-09-28 11:44:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-28 11:44:35,773 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:37,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:37,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-09-28 11:44:37,470 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-09-28 11:44:37,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-28 11:44:37,472 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:37,627 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:39,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 34 states and 56 transitions. [2018-09-28 11:44:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2018-09-28 11:44:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-28 11:44:39,775 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:40,196 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:42,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 36 states and 58 transitions. [2018-09-28 11:44:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2018-09-28 11:44:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 11:44:42,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:45,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 69 transitions. [2018-09-28 11:44:45,802 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2018-09-28 11:44:45,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-28 11:44:45,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 42 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:50,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 42 states and 71 transitions. [2018-09-28 11:44:50,046 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2018-09-28 11:44:50,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-28 11:44:50,047 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:50,280 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 42 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:44:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:44:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 46 states and 83 transitions. [2018-09-28 11:44:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2018-09-28 11:44:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-28 11:44:55,187 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:44:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:44:56,385 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 56 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:45:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:45:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 48 states and 85 transitions. [2018-09-28 11:45:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2018-09-28 11:45:01,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-28 11:45:01,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:45:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:45:01,636 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 56 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:45:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:45:09,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 52 states and 98 transitions. [2018-09-28 11:45:09,126 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2018-09-28 11:45:09,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-28 11:45:09,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:45:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:45:11,683 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:45:19,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:45:19,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 54 states and 100 transitions. [2018-09-28 11:45:19,007 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2018-09-28 11:45:19,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-28 11:45:19,008 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:45:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:45:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:45:31,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:45:31,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 58 states and 114 transitions. [2018-09-28 11:45:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 114 transitions. [2018-09-28 11:45:31,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-28 11:45:31,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:45:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:45:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 90 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:45:46,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:45:46,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 60 states and 116 transitions. [2018-09-28 11:45:46,039 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 116 transitions. [2018-09-28 11:45:46,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-28 11:45:46,040 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:45:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:45:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 90 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:46:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 64 states and 131 transitions. [2018-09-28 11:46:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 131 transitions. [2018-09-28 11:46:04,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-28 11:46:04,056 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:46:08,967 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 110 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:46:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 66 states and 133 transitions. [2018-09-28 11:46:26,299 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2018-09-28 11:46:26,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-28 11:46:26,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:46:26,660 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 110 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:46:53,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:53,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 70 states and 149 transitions. [2018-09-28 11:46:53,562 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 149 transitions. [2018-09-28 11:46:53,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-28 11:46:53,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 132 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:27,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:27,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 72 states and 151 transitions. [2018-09-28 11:47:27,216 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 151 transitions. [2018-09-28 11:47:27,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-28 11:47:27,217 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 132 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:07,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:07,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 76 states and 168 transitions. [2018-09-28 11:48:07,987 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 168 transitions. [2018-09-28 11:48:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-28 11:48:07,987 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 156 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:56,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:56,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 78 states and 170 transitions. [2018-09-28 11:48:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 170 transitions. [2018-09-28 11:48:56,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-28 11:48:56,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 156 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown