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/down.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 11:54:07,607 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 11:54:07,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 11:54:07,621 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 11:54:07,621 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 11:54:07,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 11:54:07,624 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 11:54:07,626 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 11:54:07,631 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 11:54:07,633 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 11:54:07,634 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 11:54:07,635 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 11:54:07,636 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 11:54:07,640 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 11:54:07,641 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 11:54:07,642 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 11:54:07,647 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 11:54:07,650 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 11:54:07,653 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 11:54:07,657 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 11:54:07,658 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 11:54:07,659 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 11:54:07,663 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 11:54:07,664 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 11:54:07,664 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 11:54:07,667 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 11:54:07,668 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 11:54:07,671 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 11:54:07,672 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 11:54:07,673 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 11:54:07,675 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 11:54:07,675 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 11:54:07,676 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 11:54:07,676 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 11:54:07,677 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 11:54:07,677 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 11:54:07,678 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 11:54:07,692 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 11:54:07,693 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 11:54:07,693 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 11:54:07,694 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 11:54:07,694 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 11:54:07,694 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 11:54:07,695 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 11:54:07,695 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 11:54:07,695 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 11:54:07,695 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 11:54:07,695 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 11:54:07,695 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 11:54:07,696 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 11:54:07,696 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 11:54:07,696 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 11:54:07,696 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 11:54:07,696 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 11:54:07,697 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 11:54:07,697 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 11:54:07,697 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 11:54:07,697 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 11:54:07,697 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 11:54:07,698 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 11:54:07,698 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 11:54:07,698 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 11:54:07,698 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 11:54:07,698 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 11:54:07,699 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 11:54:07,699 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 11:54:07,699 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 11:54:07,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 11:54:07,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 11:54:07,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 11:54:07,783 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 11:54:07,783 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 11:54:07,784 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/down.i_4.bpl [2018-09-30 11:54:07,784 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/down.i_4.bpl' [2018-09-30 11:54:07,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 11:54:07,848 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 11:54:07,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 11:54:07,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 11:54:07,849 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 11:54:07,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (1/1) ... [2018-09-30 11:54:07,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (1/1) ... [2018-09-30 11:54:07,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 11:54:07,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 11:54:07,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 11:54:07,892 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 11:54:07,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (1/1) ... [2018-09-30 11:54:07,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (1/1) ... [2018-09-30 11:54:07,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (1/1) ... [2018-09-30 11:54:07,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (1/1) ... [2018-09-30 11:54:07,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (1/1) ... [2018-09-30 11:54:07,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (1/1) ... [2018-09-30 11:54:07,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (1/1) ... [2018-09-30 11:54:07,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 11:54:07,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 11:54:07,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 11:54:07,916 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 11:54:07,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:54:07" (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 11:54:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 11:54:07,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 11:54:08,201 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 11:54:08,202 INFO L202 PluginConnector]: Adding new model down.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 11:54:08 BoogieIcfgContainer [2018-09-30 11:54:08,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 11:54:08,202 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 11:54:08,203 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 11:54:08,214 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 11:54:08,214 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 11:54:08" (1/1) ... [2018-09-30 11:54:08,228 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 11:54:08,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:08,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-09-30 11:54:08,263 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-30 11:54:08,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 11:54:08,266 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:08,519 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 11:54:09,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-09-30 11:54:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-09-30 11:54:09,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 11:54:09,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:09,329 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 11:54:10,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:10,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 12 states and 19 transitions. [2018-09-30 11:54:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 19 transitions. [2018-09-30 11:54:10,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-30 11:54:10,764 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:10,855 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 11:54:11,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:11,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 16 states and 27 transitions. [2018-09-30 11:54:11,748 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 27 transitions. [2018-09-30 11:54:11,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-30 11:54:11,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:11,896 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 11:54:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-09-30 11:54:13,450 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-09-30 11:54:13,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 11:54:13,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:13,553 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 11:54:15,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:15,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2018-09-30 11:54:15,216 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-09-30 11:54:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 11:54:15,217 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:15,623 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 11:54:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-09-30 11:54:17,238 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-09-30 11:54:17,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-30 11:54:17,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:17,487 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 11:54:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:19,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 28 states and 44 transitions. [2018-09-30 11:54:19,844 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2018-09-30 11:54:19,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-30 11:54:19,845 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:20,024 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 11:54:21,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:21,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-09-30 11:54:21,298 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-09-30 11:54:21,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-30 11:54:21,299 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:21,443 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 11:54:23,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 34 states and 56 transitions. [2018-09-30 11:54:23,225 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2018-09-30 11:54:23,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-30 11:54:23,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:23,504 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 11:54:25,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:25,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 36 states and 58 transitions. [2018-09-30 11:54:25,376 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2018-09-30 11:54:25,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-30 11:54:25,377 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:25,553 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 11:54:27,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:27,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 69 transitions. [2018-09-30 11:54:27,692 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2018-09-30 11:54:27,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 11:54:27,694 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:28,120 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 11:54:30,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 42 states and 71 transitions. [2018-09-30 11:54:30,657 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2018-09-30 11:54:30,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-30 11:54:30,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:30,869 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 11:54:33,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:33,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 46 states and 83 transitions. [2018-09-30 11:54:33,629 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2018-09-30 11:54:33,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-30 11:54:33,630 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:33,997 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 11:54:37,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 48 states and 85 transitions. [2018-09-30 11:54:37,949 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2018-09-30 11:54:37,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-30 11:54:37,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:38,183 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 11:54:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 52 states and 98 transitions. [2018-09-30 11:54:42,117 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2018-09-30 11:54:42,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-30 11:54:42,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:42,712 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 11:54:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:46,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 54 states and 100 transitions. [2018-09-30 11:54:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2018-09-30 11:54:46,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-30 11:54:46,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:47,449 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 11:54:52,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:52,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 58 states and 114 transitions. [2018-09-30 11:54:52,507 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 114 transitions. [2018-09-30 11:54:52,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-30 11:54:52,509 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:53,635 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 11:54:59,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:54:59,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 60 states and 116 transitions. [2018-09-30 11:54:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 116 transitions. [2018-09-30 11:54:59,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-30 11:54:59,169 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:54:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:54:59,547 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 11:55:05,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:55:05,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 64 states and 131 transitions. [2018-09-30 11:55:05,892 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 131 transitions. [2018-09-30 11:55:05,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-30 11:55:05,893 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:55:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:55:06,782 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 11:55:13,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:55:13,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 66 states and 133 transitions. [2018-09-30 11:55:13,831 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2018-09-30 11:55:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-30 11:55:13,832 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:55:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:55:14,388 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 11:55:22,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:55:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 70 states and 149 transitions. [2018-09-30 11:55:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 149 transitions. [2018-09-30 11:55:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-30 11:55:22,814 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:55:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:55:23,530 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 11:55:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:55:32,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 72 states and 151 transitions. [2018-09-30 11:55:32,649 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 151 transitions. [2018-09-30 11:55:32,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-30 11:55:32,650 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:55:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:55:33,292 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 11:55:43,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:55:43,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 76 states and 168 transitions. [2018-09-30 11:55:43,927 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 168 transitions. [2018-09-30 11:55:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-30 11:55:43,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:55:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:55:44,760 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 11:55:56,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:55:56,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 78 states and 170 transitions. [2018-09-30 11:55:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 170 transitions. [2018-09-30 11:55:56,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-30 11:55:56,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:55:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:55:57,161 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 11:56:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:56:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 82 states and 188 transitions. [2018-09-30 11:56:10,976 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 188 transitions. [2018-09-30 11:56:10,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-30 11:56:10,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:56:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:56:12,408 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 11:56:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:56:27,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 84 states and 190 transitions. [2018-09-30 11:56:27,487 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 190 transitions. [2018-09-30 11:56:27,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-30 11:56:27,488 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:56:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:56:28,147 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 11:56:45,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:56:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 88 states and 209 transitions. [2018-09-30 11:56:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 209 transitions. [2018-09-30 11:56:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-30 11:56:45,858 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:56:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:56:47,036 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 11:57:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:57:06,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 90 states and 211 transitions. [2018-09-30 11:57:06,411 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 211 transitions. [2018-09-30 11:57:06,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-30 11:57:06,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:57:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:57:07,215 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 11:57:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:57:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 94 states and 231 transitions. [2018-09-30 11:57:29,963 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 231 transitions. [2018-09-30 11:57:29,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-30 11:57:29,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:57:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:57:31,628 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 11:57:55,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:57:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 96 states and 233 transitions. [2018-09-30 11:57:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 233 transitions. [2018-09-30 11:57:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-30 11:57:55,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:57:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:57:56,924 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 240 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 11:58:25,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 11:58:25,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 100 states and 254 transitions. [2018-09-30 11:58:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 254 transitions. [2018-09-30 11:58:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-30 11:58:25,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 11:58:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 11:58:27,072 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 272 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