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 0.1.23-00a8621 [2018-09-30 12:02:20,535 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 12:02:20,537 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 12:02:20,556 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 12:02:20,556 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 12:02:20,558 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 12:02:20,559 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 12:02:20,561 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 12:02:20,563 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 12:02:20,564 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 12:02:20,567 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 12:02:20,567 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 12:02:20,568 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 12:02:20,569 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 12:02:20,570 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 12:02:20,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 12:02:20,572 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 12:02:20,573 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 12:02:20,576 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 12:02:20,577 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 12:02:20,578 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 12:02:20,579 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 12:02:20,582 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 12:02:20,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 12:02:20,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 12:02:20,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 12:02:20,584 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 12:02:20,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 12:02:20,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 12:02:20,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 12:02:20,587 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 12:02:20,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 12:02:20,588 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 12:02:20,588 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 12:02:20,589 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 12:02:20,589 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 12:02:20,590 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 12:02:20,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 12:02:20,616 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 12:02:20,617 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 12:02:20,617 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 12:02:20,618 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 12:02:20,618 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 12:02:20,619 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 12:02:20,619 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 12:02:20,620 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 12:02:20,620 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 12:02:20,620 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 12:02:20,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 12:02:20,621 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 12:02:20,621 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 12:02:20,621 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 12:02:20,621 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 12:02:20,622 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 12:02:20,622 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 12:02:20,622 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 12:02:20,622 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 12:02:20,623 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 12:02:20,623 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 12:02:20,623 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 12:02:20,623 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 12:02:20,624 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 12:02:20,625 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 12:02:20,625 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 12:02:20,625 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 12:02:20,625 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 12:02:20,626 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 12:02:20,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 12:02:20,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 12:02:20,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 12:02:20,713 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 12:02:20,713 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 12:02:20,714 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/seq.i_4.bpl [2018-09-30 12:02:20,715 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/seq.i_4.bpl' [2018-09-30 12:02:20,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 12:02:20,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 12:02:20,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 12:02:20,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 12:02:20,797 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 12:02:20,819 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 30.09 12:02:20" (1/1) ... [2018-09-30 12:02:20,832 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 30.09 12:02:20" (1/1) ... [2018-09-30 12:02:20,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 12:02:20,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 12:02:20,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 12:02:20,841 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 12:02:20,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:02:20" (1/1) ... [2018-09-30 12:02:20,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:02:20" (1/1) ... [2018-09-30 12:02:20,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:02:20" (1/1) ... [2018-09-30 12:02:20,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:02:20" (1/1) ... [2018-09-30 12:02:20,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:02:20" (1/1) ... [2018-09-30 12:02:20,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:02:20" (1/1) ... [2018-09-30 12:02:20,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:02:20" (1/1) ... [2018-09-30 12:02:20,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 12:02:20,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 12:02:20,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 12:02:20,867 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 12:02:20,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 12:02:20" (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 12:02:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 12:02:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 12:02:21,151 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 12:02:21,152 INFO L202 PluginConnector]: Adding new model seq.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 12:02:21 BoogieIcfgContainer [2018-09-30 12:02:21,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 12:02:21,153 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 12:02:21,153 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 12:02:21,165 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 12:02:21,166 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 12:02:21" (1/1) ... [2018-09-30 12:02:21,181 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 12:02:21,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-09-30 12:02:21,224 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-30 12:02:21,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 12:02:21,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:21,531 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 12:02:22,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:22,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-09-30 12:02:22,184 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-09-30 12:02:22,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 12:02:22,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:23,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:23,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 12 states and 19 transitions. [2018-09-30 12:02:23,764 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 19 transitions. [2018-09-30 12:02:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-30 12:02:23,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:23,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 16 states and 27 transitions. [2018-09-30 12:02:25,215 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 27 transitions. [2018-09-30 12:02:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-30 12:02:25,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:27,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:27,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-09-30 12:02:27,229 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-09-30 12:02:27,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 12:02:27,229 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:27,355 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:28,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2018-09-30 12:02:28,927 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-09-30 12:02:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 12:02:28,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:29,157 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:30,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-09-30 12:02:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-09-30 12:02:30,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-30 12:02:30,778 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:33,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 28 states and 44 transitions. [2018-09-30 12:02:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2018-09-30 12:02:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-30 12:02:33,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:34,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:34,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-09-30 12:02:34,896 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-09-30 12:02:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-30 12:02:34,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:36,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 34 states and 56 transitions. [2018-09-30 12:02:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2018-09-30 12:02:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-30 12:02:36,742 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:36,973 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:38,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:38,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 36 states and 58 transitions. [2018-09-30 12:02:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2018-09-30 12:02:38,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-30 12:02:38,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:41,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 69 transitions. [2018-09-30 12:02:41,510 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2018-09-30 12:02:41,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 12:02:41,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 42 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:44,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:44,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 42 states and 71 transitions. [2018-09-30 12:02:44,545 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2018-09-30 12:02:44,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-30 12:02:44,546 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 42 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:47,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:47,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 46 states and 83 transitions. [2018-09-30 12:02:47,920 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2018-09-30 12:02:47,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-30 12:02:47,922 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:48,289 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 56 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:51,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 48 states and 85 transitions. [2018-09-30 12:02:51,836 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2018-09-30 12:02:51,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-30 12:02:51,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 56 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:02:56,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:02:56,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 52 states and 98 transitions. [2018-09-30 12:02:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2018-09-30 12:02:56,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-30 12:02:56,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:02:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:02:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:03:01,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:03:01,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 54 states and 100 transitions. [2018-09-30 12:03:01,710 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2018-09-30 12:03:01,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-30 12:03:01,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:03:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:03:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:03:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:03:07,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 58 states and 114 transitions. [2018-09-30 12:03:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 114 transitions. [2018-09-30 12:03:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-30 12:03:07,731 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:03:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:03:09,087 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 90 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:03:15,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:03:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 60 states and 116 transitions. [2018-09-30 12:03:15,185 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 116 transitions. [2018-09-30 12:03:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-30 12:03:15,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:03:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:03:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 90 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:03:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:03:22,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 64 states and 131 transitions. [2018-09-30 12:03:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 131 transitions. [2018-09-30 12:03:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-30 12:03:22,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:03:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:03:23,595 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 110 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:03:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:03:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 66 states and 133 transitions. [2018-09-30 12:03:31,771 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2018-09-30 12:03:31,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-30 12:03:31,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:03:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:03:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 110 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:03:41,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:03:41,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 70 states and 149 transitions. [2018-09-30 12:03:41,833 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 149 transitions. [2018-09-30 12:03:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-30 12:03:41,834 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:03:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:03:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 132 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:03:53,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:03:53,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 72 states and 151 transitions. [2018-09-30 12:03:53,119 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 151 transitions. [2018-09-30 12:03:53,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-30 12:03:53,120 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:03:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:03:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 132 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:04:05,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:04:05,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 76 states and 168 transitions. [2018-09-30 12:04:05,978 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 168 transitions. [2018-09-30 12:04:05,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-30 12:04:05,979 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:04:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:04:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 156 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:04:20,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:04:20,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 78 states and 170 transitions. [2018-09-30 12:04:20,591 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 170 transitions. [2018-09-30 12:04:20,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-30 12:04:20,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:04:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:04:21,247 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 156 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:04:37,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:04:37,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 82 states and 188 transitions. [2018-09-30 12:04:37,282 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 188 transitions. [2018-09-30 12:04:37,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-30 12:04:37,282 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:04:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:04:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 182 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:04:56,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:04:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 84 states and 190 transitions. [2018-09-30 12:04:56,125 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 190 transitions. [2018-09-30 12:04:56,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-30 12:04:56,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:04:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:04:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 182 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:05:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:05:18,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 88 states and 209 transitions. [2018-09-30 12:05:18,580 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 209 transitions. [2018-09-30 12:05:18,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-30 12:05:18,581 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:05:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:05:19,729 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 210 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:05:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:05:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 90 states and 211 transitions. [2018-09-30 12:05:42,360 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 211 transitions. [2018-09-30 12:05:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-30 12:05:42,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:05:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:05:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 210 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 94 states and 231 transitions. [2018-09-30 12:06:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 231 transitions. [2018-09-30 12:06:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-30 12:06:10,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 240 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 12:06:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 12:06:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 96 states and 233 transitions. [2018-09-30 12:06:40,517 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 233 transitions. [2018-09-30 12:06:40,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-30 12:06:40,518 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 12:06:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 12:06:41,727 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 240 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown