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/20170319-ConjunctivePathPrograms/gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f-m [2018-10-04 14:46:54,473 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 14:46:54,475 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 14:46:54,486 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 14:46:54,487 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 14:46:54,488 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 14:46:54,489 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 14:46:54,491 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 14:46:54,493 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 14:46:54,493 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 14:46:54,494 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 14:46:54,495 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 14:46:54,495 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 14:46:54,496 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 14:46:54,500 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 14:46:54,501 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 14:46:54,502 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 14:46:54,506 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 14:46:54,511 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 14:46:54,514 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 14:46:54,516 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 14:46:54,517 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 14:46:54,521 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 14:46:54,522 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 14:46:54,522 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 14:46:54,524 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 14:46:54,525 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 14:46:54,525 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 14:46:54,528 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 14:46:54,531 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 14:46:54,531 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 14:46:54,533 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 14:46:54,533 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 14:46:54,533 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 14:46:54,534 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 14:46:54,534 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 14:46:54,536 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 [2018-10-04 14:46:54,567 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 14:46:54,567 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 14:46:54,569 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 14:46:54,570 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 14:46:54,570 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 14:46:54,570 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 14:46:54,572 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 14:46:54,572 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 14:46:54,572 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 14:46:54,572 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 14:46:54,572 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 14:46:54,572 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 14:46:54,573 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 14:46:54,573 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 14:46:54,574 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 14:46:54,574 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 14:46:54,574 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 14:46:54,574 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 14:46:54,574 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 14:46:54,574 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 14:46:54,576 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 14:46:54,576 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 14:46:54,576 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 14:46:54,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 14:46:54,577 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 14:46:54,577 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 14:46:54,577 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 14:46:54,577 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 14:46:54,577 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 14:46:54,578 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 14:46:54,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 14:46:54,640 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 14:46:54,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 14:46:54,648 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 14:46:54,649 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 14:46:54,649 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-10-04 14:46:54,650 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl' [2018-10-04 14:46:54,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 14:46:54,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 14:46:54,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 14:46:54,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 14:46:54,706 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 14:46:54,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (1/1) ... [2018-10-04 14:46:54,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (1/1) ... [2018-10-04 14:46:54,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 14:46:54,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 14:46:54,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 14:46:54,751 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 14:46:54,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (1/1) ... [2018-10-04 14:46:54,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (1/1) ... [2018-10-04 14:46:54,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (1/1) ... [2018-10-04 14:46:54,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (1/1) ... [2018-10-04 14:46:54,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (1/1) ... [2018-10-04 14:46:54,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (1/1) ... [2018-10-04 14:46:54,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (1/1) ... [2018-10-04 14:46:54,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 14:46:54,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 14:46:54,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 14:46:54,773 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 14:46:54,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:46:54" (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 [2018-10-04 14:46:54,851 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-04 14:46:54,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 14:46:54,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 14:46:55,048 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 14:46:55,048 INFO L202 PluginConnector]: Adding new model gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:46:55 BoogieIcfgContainer [2018-10-04 14:46:55,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 14:46:55,049 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 14:46:55,049 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 14:46:55,062 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 14:46:55,062 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "gauss_sum.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:46:55" (1/1) ... [2018-10-04 14:46:55,075 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 14:46:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:46:55,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-10-04 14:46:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-10-04 14:46:55,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 14:46:55,123 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:46:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:46:55,242 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:46:55,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:46:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:46:55,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 5 states and 6 transitions. [2018-10-04 14:46:55,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 6 transitions. [2018-10-04 14:46:55,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 14:46:55,534 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:46:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:46:55,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:46:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:46:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:46:56,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-10-04 14:46:56,497 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-10-04 14:46:56,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 14:46:56,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:46:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:46:56,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:46:56,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:46:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:46:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-04 14:46:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-04 14:46:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 14:46:57,043 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:46:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:46:57,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:46:57,482 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:46:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:46:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-10-04 14:46:58,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-10-04 14:46:58,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-04 14:46:58,101 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:46:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:46:58,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:46:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:46:59,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:46:59,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2018-10-04 14:46:59,540 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-10-04 14:46:59,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 14:46:59,545 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:46:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:46:59,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:46:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-10-04 14:47:01,064 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-10-04 14:47:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 14:47:01,065 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:01,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2018-10-04 14:47:02,043 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-10-04 14:47:02,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 14:47:02,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:02,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2018-10-04 14:47:03,322 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2018-10-04 14:47:03,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-04 14:47:03,323 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:03,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:04,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:04,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2018-10-04 14:47:04,451 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2018-10-04 14:47:04,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 14:47:04,452 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:04,483 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:04,592 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2018-10-04 14:47:05,689 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2018-10-04 14:47:05,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 14:47:05,690 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:05,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:07,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:07,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2018-10-04 14:47:07,484 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2018-10-04 14:47:07,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 14:47:07,485 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:07,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:07,653 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:08,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2018-10-04 14:47:08,984 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2018-10-04 14:47:08,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-04 14:47:08,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:09,023 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:10,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:10,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2018-10-04 14:47:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2018-10-04 14:47:10,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-04 14:47:10,600 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:10,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:13,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2018-10-04 14:47:13,713 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2018-10-04 14:47:13,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-04 14:47:13,714 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:13,742 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:13,990 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:16,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:16,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 30 states and 42 transitions. [2018-10-04 14:47:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2018-10-04 14:47:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-04 14:47:16,851 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:16,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:17,059 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:18,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:18,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 32 states and 45 transitions. [2018-10-04 14:47:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2018-10-04 14:47:18,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-04 14:47:18,810 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:18,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:18,953 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:20,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:20,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 34 states and 48 transitions. [2018-10-04 14:47:20,955 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2018-10-04 14:47:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-04 14:47:20,957 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:20,994 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:23,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:23,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 51 transitions. [2018-10-04 14:47:23,411 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2018-10-04 14:47:23,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-04 14:47:23,412 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:23,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 38 states and 54 transitions. [2018-10-04 14:47:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2018-10-04 14:47:26,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-04 14:47:26,008 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:26,047 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:29,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 40 states and 57 transitions. [2018-10-04 14:47:29,019 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 57 transitions. [2018-10-04 14:47:29,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-04 14:47:29,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:29,064 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:29,470 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 42 states and 60 transitions. [2018-10-04 14:47:32,701 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2018-10-04 14:47:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-04 14:47:32,703 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:32,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:32,874 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:35,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:35,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 44 states and 63 transitions. [2018-10-04 14:47:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2018-10-04 14:47:35,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-04 14:47:35,973 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:36,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:36,173 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:39,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 46 states and 66 transitions. [2018-10-04 14:47:39,638 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2018-10-04 14:47:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-04 14:47:39,638 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:39,699 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:39,869 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:43,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:43,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 48 states and 69 transitions. [2018-10-04 14:47:43,618 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2018-10-04 14:47:43,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-04 14:47:43,619 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:43,660 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:43,866 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:47,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 50 states and 72 transitions. [2018-10-04 14:47:47,851 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions. [2018-10-04 14:47:47,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-04 14:47:47,852 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:47,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:52,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 52 states and 75 transitions. [2018-10-04 14:47:52,225 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2018-10-04 14:47:52,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-04 14:47:52,225 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:52,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:52,471 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:47:57,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:47:57,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 54 states and 78 transitions. [2018-10-04 14:47:57,053 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 78 transitions. [2018-10-04 14:47:57,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-04 14:47:57,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:47:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:47:57,108 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:47:57,302 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:48:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:48:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 81 transitions. [2018-10-04 14:48:02,157 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2018-10-04 14:48:02,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-04 14:48:02,158 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:48:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:48:02,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:48:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:48:07,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:48:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 58 states and 84 transitions. [2018-10-04 14:48:07,525 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2018-10-04 14:48:07,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-04 14:48:07,526 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:48:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:48:07,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:48:07,771 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:48:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:48:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 60 states and 87 transitions. [2018-10-04 14:48:13,308 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2018-10-04 14:48:13,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-04 14:48:13,308 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:48:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:48:13,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:48:14,446 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:48:20,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:48:20,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 62 states and 90 transitions. [2018-10-04 14:48:20,267 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2018-10-04 14:48:20,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-04 14:48:20,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:48:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:48:20,327 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:48:20,498 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:48:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:48:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 64 states and 93 transitions. [2018-10-04 14:48:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2018-10-04 14:48:27,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-04 14:48:27,070 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:48:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:48:27,132 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:48:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:48:34,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:48:34,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 66 states and 96 transitions. [2018-10-04 14:48:34,073 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 96 transitions. [2018-10-04 14:48:34,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-04 14:48:34,074 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:48:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:48:34,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:48:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:48:41,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:48:41,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 68 states and 99 transitions. [2018-10-04 14:48:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2018-10-04 14:48:41,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-04 14:48:41,916 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:48:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:48:41,992 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:48:42,746 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:48:50,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:48:50,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 70 states and 102 transitions. [2018-10-04 14:48:50,621 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 102 transitions. [2018-10-04 14:48:50,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-04 14:48:50,622 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:48:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:48:50,682 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:48:50,975 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:48:59,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:48:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 72 states and 105 transitions. [2018-10-04 14:48:59,882 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2018-10-04 14:48:59,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-04 14:48:59,882 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:48:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:48:59,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:49:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:49:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:49:08,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 74 states and 108 transitions. [2018-10-04 14:49:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2018-10-04 14:49:08,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-04 14:49:08,806 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:49:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:49:08,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:49:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:49:18,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:49:18,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 76 states and 111 transitions. [2018-10-04 14:49:18,380 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2018-10-04 14:49:18,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-04 14:49:18,380 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:49:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:49:18,450 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:49:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:49:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:49:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 78 states and 114 transitions. [2018-10-04 14:49:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2018-10-04 14:49:28,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-04 14:49:28,284 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:49:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:49:28,354 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:49:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:49:38,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:49:38,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 80 states and 117 transitions. [2018-10-04 14:49:38,696 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions. [2018-10-04 14:49:38,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-04 14:49:38,696 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:49:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:49:38,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:49:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:49:50,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:49:50,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 82 states and 120 transitions. [2018-10-04 14:49:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 120 transitions. [2018-10-04 14:49:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-04 14:49:50,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:49:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:49:50,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:49:50,964 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:02,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:02,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 84 states and 123 transitions. [2018-10-04 14:50:02,577 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2018-10-04 14:50:02,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-04 14:50:02,577 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:02,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:50:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 86 states and 126 transitions. [2018-10-04 14:50:16,138 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 126 transitions. [2018-10-04 14:50:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-04 14:50:16,138 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:16,231 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:50:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:29,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:29,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 88 states and 129 transitions. [2018-10-04 14:50:29,519 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2018-10-04 14:50:29,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-04 14:50:29,519 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:29,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:50:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 90 states and 132 transitions. [2018-10-04 14:50:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions. [2018-10-04 14:50:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-04 14:50:43,837 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:43,938 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:50:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 92 states and 135 transitions. [2018-10-04 14:50:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 135 transitions. [2018-10-04 14:50:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-04 14:50:58,787 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:58,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:50:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:51:14,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 94 states and 138 transitions. [2018-10-04 14:51:14,495 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 138 transitions. [2018-10-04 14:51:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-04 14:51:14,495 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:14,608 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 14:51:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown