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/down.i_4.bplTransformedIcfg_BEv2_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2eb0a67 [2018-10-03 10:04:47,462 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-03 10:04:47,464 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-03 10:04:47,481 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-03 10:04:47,482 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-03 10:04:47,483 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-03 10:04:47,484 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-03 10:04:47,487 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-03 10:04:47,496 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-03 10:04:47,497 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-03 10:04:47,499 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-03 10:04:47,500 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-03 10:04:47,501 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-03 10:04:47,502 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-03 10:04:47,505 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-03 10:04:47,507 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-03 10:04:47,508 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-03 10:04:47,511 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-03 10:04:47,516 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-03 10:04:47,520 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-03 10:04:47,521 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-03 10:04:47,523 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-03 10:04:47,529 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-03 10:04:47,530 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-03 10:04:47,530 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-03 10:04:47,531 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-03 10:04:47,532 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-03 10:04:47,533 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-03 10:04:47,534 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-03 10:04:47,535 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-03 10:04:47,536 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-03 10:04:47,537 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-03 10:04:47,537 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-03 10:04:47,538 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-03 10:04:47,541 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-03 10:04:47,542 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-03 10:04:47,542 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 [2018-10-03 10:04:47,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-03 10:04:47,563 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-03 10:04:47,565 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-03 10:04:47,565 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-03 10:04:47,566 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-03 10:04:47,566 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-03 10:04:47,567 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-03 10:04:47,567 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-03 10:04:47,567 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-03 10:04:47,567 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-03 10:04:47,567 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-03 10:04:47,567 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-03 10:04:47,568 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-03 10:04:47,568 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-03 10:04:47,568 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-03 10:04:47,568 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-03 10:04:47,569 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-03 10:04:47,569 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-03 10:04:47,569 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-03 10:04:47,569 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-03 10:04:47,570 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-03 10:04:47,570 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-03 10:04:47,570 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-03 10:04:47,570 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-03 10:04:47,571 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-03 10:04:47,571 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-03 10:04:47,571 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-03 10:04:47,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-03 10:04:47,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-03 10:04:47,572 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-03 10:04:47,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-03 10:04:47,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-03 10:04:47,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-03 10:04:47,644 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-03 10:04:47,645 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-03 10:04:47,646 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/down.i_4.bplTransformedIcfg_BEv2_5.bpl [2018-10-03 10:04:47,646 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/down.i_4.bplTransformedIcfg_BEv2_5.bpl' [2018-10-03 10:04:47,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-03 10:04:47,700 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-03 10:04:47,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-03 10:04:47,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-03 10:04:47,701 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-03 10:04:47,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (1/1) ... [2018-10-03 10:04:47,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (1/1) ... [2018-10-03 10:04:47,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-03 10:04:47,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-03 10:04:47,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-03 10:04:47,750 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-03 10:04:47,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (1/1) ... [2018-10-03 10:04:47,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (1/1) ... [2018-10-03 10:04:47,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (1/1) ... [2018-10-03 10:04:47,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (1/1) ... [2018-10-03 10:04:47,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (1/1) ... [2018-10-03 10:04:47,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (1/1) ... [2018-10-03 10:04:47,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (1/1) ... [2018-10-03 10:04:47,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-03 10:04:47,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-03 10:04:47,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-03 10:04:47,771 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-03 10:04:47,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 10:04:47" (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 [2018-10-03 10:04:47,845 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-03 10:04:47,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-03 10:04:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-03 10:04:48,190 INFO L340 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-03 10:04:48,191 INFO L202 PluginConnector]: Adding new model down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 10:04:48 BoogieIcfgContainer [2018-10-03 10:04:48,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-03 10:04:48,192 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-03 10:04:48,192 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-03 10:04:48,203 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-03 10:04:48,203 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "down.i_4.bplTransformedIcfg_BEv2_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 10:04:48" (1/1) ... [2018-10-03 10:04:48,215 INFO L106 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-03 10:04:48,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:48,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2018-10-03 10:04:48,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-10-03 10:04:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-03 10:04:48,253 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:48,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:48,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 8 states and 12 transitions. [2018-10-03 10:04:48,879 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 12 transitions. [2018-10-03 10:04:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-03 10:04:48,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:50,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:50,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 10 states and 17 transitions. [2018-10-03 10:04:50,543 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 17 transitions. [2018-10-03 10:04:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-03 10:04:50,547 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:51,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 13 states and 24 transitions. [2018-10-03 10:04:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 24 transitions. [2018-10-03 10:04:51,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-03 10:04:51,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:51,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:52,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:52,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 15 states and 27 transitions. [2018-10-03 10:04:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 27 transitions. [2018-10-03 10:04:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-03 10:04:52,180 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:52,338 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:53,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:53,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 18 states and 35 transitions. [2018-10-03 10:04:53,510 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 35 transitions. [2018-10-03 10:04:53,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-03 10:04:53,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:53,633 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:55,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:55,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 20 states and 38 transitions. [2018-10-03 10:04:55,210 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 38 transitions. [2018-10-03 10:04:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-03 10:04:55,211 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:56,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 23 states and 47 transitions. [2018-10-03 10:04:56,618 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 47 transitions. [2018-10-03 10:04:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-03 10:04:56,620 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:57,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:57,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 50 transitions. [2018-10-03 10:04:57,565 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 50 transitions. [2018-10-03 10:04:57,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-03 10:04:57,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:57,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:58,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 28 states and 60 transitions. [2018-10-03 10:04:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 60 transitions. [2018-10-03 10:04:58,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-03 10:04:58,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:04:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:04:58,720 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:04:59,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:04:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 30 states and 63 transitions. [2018-10-03 10:04:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 63 transitions. [2018-10-03 10:04:59,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-03 10:04:59,999 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:01,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:01,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 33 states and 74 transitions. [2018-10-03 10:05:01,314 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 74 transitions. [2018-10-03 10:05:01,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-03 10:05:01,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:01,449 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 21 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:02,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 35 states and 77 transitions. [2018-10-03 10:05:02,558 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 77 transitions. [2018-10-03 10:05:02,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-03 10:05:02,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:02,750 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 42 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:04,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 38 states and 89 transitions. [2018-10-03 10:05:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 89 transitions. [2018-10-03 10:05:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-03 10:05:04,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:05,029 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 28 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 40 states and 92 transitions. [2018-10-03 10:05:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 92 transitions. [2018-10-03 10:05:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-03 10:05:07,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 43 states and 105 transitions. [2018-10-03 10:05:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 105 transitions. [2018-10-03 10:05:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-03 10:05:10,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 36 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:12,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:12,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 45 states and 108 transitions. [2018-10-03 10:05:12,095 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 108 transitions. [2018-10-03 10:05:12,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-03 10:05:12,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:12,407 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 72 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:14,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:14,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 48 states and 122 transitions. [2018-10-03 10:05:14,114 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 122 transitions. [2018-10-03 10:05:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-03 10:05:14,115 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 45 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:16,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:16,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 50 states and 125 transitions. [2018-10-03 10:05:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 125 transitions. [2018-10-03 10:05:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-03 10:05:16,240 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:16,784 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 90 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:18,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 53 states and 140 transitions. [2018-10-03 10:05:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 140 transitions. [2018-10-03 10:05:18,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-03 10:05:18,607 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 55 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 55 states and 143 transitions. [2018-10-03 10:05:21,762 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 143 transitions. [2018-10-03 10:05:21,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-03 10:05:21,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 110 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 58 states and 159 transitions. [2018-10-03 10:05:24,089 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 159 transitions. [2018-10-03 10:05:24,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-03 10:05:24,090 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:24,315 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 66 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:26,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:26,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 60 states and 162 transitions. [2018-10-03 10:05:26,440 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 162 transitions. [2018-10-03 10:05:26,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-03 10:05:26,441 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:26,767 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 132 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:29,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:29,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 63 states and 179 transitions. [2018-10-03 10:05:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 179 transitions. [2018-10-03 10:05:29,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-03 10:05:29,012 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 78 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 65 states and 182 transitions. [2018-10-03 10:05:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 182 transitions. [2018-10-03 10:05:32,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-03 10:05:32,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:32,797 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 156 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:35,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 68 states and 200 transitions. [2018-10-03 10:05:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 200 transitions. [2018-10-03 10:05:35,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-03 10:05:35,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:36,092 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 91 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 70 states and 203 transitions. [2018-10-03 10:05:38,655 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 203 transitions. [2018-10-03 10:05:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-03 10:05:38,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:39,009 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 182 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 73 states and 222 transitions. [2018-10-03 10:05:41,671 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 222 transitions. [2018-10-03 10:05:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-03 10:05:41,672 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 105 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:44,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 75 states and 225 transitions. [2018-10-03 10:05:44,950 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 225 transitions. [2018-10-03 10:05:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-03 10:05:44,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 210 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 78 states and 245 transitions. [2018-10-03 10:05:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 245 transitions. [2018-10-03 10:05:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-03 10:05:48,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 120 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:52,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:52,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 80 states and 248 transitions. [2018-10-03 10:05:52,274 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 248 transitions. [2018-10-03 10:05:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-03 10:05:52,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 240 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:05:56,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:05:56,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 83 states and 269 transitions. [2018-10-03 10:05:56,337 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 269 transitions. [2018-10-03 10:05:56,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-03 10:05:56,337 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:05:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:05:56,582 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 136 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:00,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 85 states and 272 transitions. [2018-10-03 10:06:00,236 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 272 transitions. [2018-10-03 10:06:00,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-03 10:06:00,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 272 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:05,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:05,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 88 states and 294 transitions. [2018-10-03 10:06:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 294 transitions. [2018-10-03 10:06:05,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-03 10:06:05,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:06,442 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 153 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:10,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:10,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 90 states and 297 transitions. [2018-10-03 10:06:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 297 transitions. [2018-10-03 10:06:10,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-03 10:06:10,650 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 306 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:15,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 93 states and 320 transitions. [2018-10-03 10:06:15,807 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 320 transitions. [2018-10-03 10:06:15,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-03 10:06:15,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 171 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:20,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 95 states and 323 transitions. [2018-10-03 10:06:20,535 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 323 transitions. [2018-10-03 10:06:20,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-03 10:06:20,536 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:21,119 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 342 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:25,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:25,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 98 states and 347 transitions. [2018-10-03 10:06:25,847 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 347 transitions. [2018-10-03 10:06:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-03 10:06:25,847 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:26,229 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 190 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:31,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:31,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 100 states and 350 transitions. [2018-10-03 10:06:31,197 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 350 transitions. [2018-10-03 10:06:31,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-03 10:06:31,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 380 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:37,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 103 states and 375 transitions. [2018-10-03 10:06:37,110 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 375 transitions. [2018-10-03 10:06:37,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-03 10:06:37,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 210 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:50,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:50,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 105 states and 378 transitions. [2018-10-03 10:06:50,036 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 378 transitions. [2018-10-03 10:06:50,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-03 10:06:50,036 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 420 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:06:56,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:06:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 108 states and 404 transitions. [2018-10-03 10:06:56,210 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 404 transitions. [2018-10-03 10:06:56,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-03 10:06:56,211 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:06:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:06:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 231 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:07:02,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:07:02,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 110 states and 407 transitions. [2018-10-03 10:07:02,037 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 407 transitions. [2018-10-03 10:07:02,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-03 10:07:02,038 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:07:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:07:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 462 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:07:08,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:07:08,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 113 states and 434 transitions. [2018-10-03 10:07:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 434 transitions. [2018-10-03 10:07:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-03 10:07:08,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:07:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:07:09,155 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 253 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:07:15,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:07:15,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 115 states and 437 transitions. [2018-10-03 10:07:15,520 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 437 transitions. [2018-10-03 10:07:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-03 10:07:15,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:07:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:07:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 506 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:07:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:07:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 118 states and 465 transitions. [2018-10-03 10:07:23,048 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 465 transitions. [2018-10-03 10:07:23,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-03 10:07:23,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:07:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:07:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 276 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:07:30,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:07:30,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 120 states and 468 transitions. [2018-10-03 10:07:30,191 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 468 transitions. [2018-10-03 10:07:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-03 10:07:30,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:07:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:07:31,237 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 552 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:07:38,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:07:38,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 123 states and 497 transitions. [2018-10-03 10:07:38,310 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 497 transitions. [2018-10-03 10:07:38,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-03 10:07:38,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:07:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:07:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 300 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:07:46,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:07:46,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 125 states and 500 transitions. [2018-10-03 10:07:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 500 transitions. [2018-10-03 10:07:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-03 10:07:46,199 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:07:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:07:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 600 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:07:55,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:07:55,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 128 states and 530 transitions. [2018-10-03 10:07:55,867 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 530 transitions. [2018-10-03 10:07:55,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-10-03 10:07:55,867 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:07:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:07:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 325 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:05,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 130 states and 533 transitions. [2018-10-03 10:08:05,597 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 533 transitions. [2018-10-03 10:08:05,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-03 10:08:05,598 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 650 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:15,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:15,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 133 states and 564 transitions. [2018-10-03 10:08:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 564 transitions. [2018-10-03 10:08:15,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-03 10:08:15,809 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 351 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:25,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 135 states and 567 transitions. [2018-10-03 10:08:25,215 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 567 transitions. [2018-10-03 10:08:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-10-03 10:08:25,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:26,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 702 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:35,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 138 states and 599 transitions. [2018-10-03 10:08:35,501 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 599 transitions. [2018-10-03 10:08:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-03 10:08:35,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 378 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:45,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 140 states and 602 transitions. [2018-10-03 10:08:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 602 transitions. [2018-10-03 10:08:45,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-03 10:08:45,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 756 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:56,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:56,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 143 states and 635 transitions. [2018-10-03 10:08:56,402 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 635 transitions. [2018-10-03 10:08:56,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-03 10:08:56,403 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 406 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown