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/nested.i_4.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f-m [2018-10-04 14:50:07,090 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 14:50:07,091 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 14:50:07,103 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 14:50:07,104 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 14:50:07,105 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 14:50:07,106 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 14:50:07,108 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 14:50:07,109 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 14:50:07,110 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 14:50:07,111 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 14:50:07,111 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 14:50:07,112 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 14:50:07,113 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 14:50:07,115 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 14:50:07,115 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 14:50:07,116 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 14:50:07,118 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 14:50:07,120 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 14:50:07,125 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 14:50:07,126 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 14:50:07,130 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 14:50:07,132 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 14:50:07,132 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 14:50:07,132 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 14:50:07,133 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 14:50:07,134 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 14:50:07,135 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 14:50:07,136 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 14:50:07,137 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 14:50:07,137 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 14:50:07,138 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 14:50:07,138 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 14:50:07,138 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 14:50:07,139 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 14:50:07,140 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 14:50:07,140 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 14:50:07,155 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 14:50:07,155 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 14:50:07,156 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 14:50:07,156 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 14:50:07,157 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 14:50:07,157 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 14:50:07,157 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 14:50:07,158 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 14:50:07,158 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 14:50:07,158 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 14:50:07,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 14:50:07,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 14:50:07,159 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 14:50:07,159 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 14:50:07,159 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 14:50:07,159 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 14:50:07,159 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 14:50:07,159 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 14:50:07,160 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 14:50:07,160 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 14:50:07,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 14:50:07,160 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 14:50:07,160 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 14:50:07,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 14:50:07,161 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 14:50:07,161 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 14:50:07,161 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 14:50:07,161 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 14:50:07,162 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 14:50:07,162 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 14:50:07,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 14:50:07,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 14:50:07,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 14:50:07,241 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 14:50:07,241 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 14:50:07,242 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl [2018-10-04 14:50:07,242 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl' [2018-10-04 14:50:07,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 14:50:07,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 14:50:07,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 14:50:07,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 14:50:07,313 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 14:50:07,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 14:50:07,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 14:50:07,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 14:50:07,354 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 14:50:07,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 14:50:07,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 14:50:07,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 14:50:07,374 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 14:50:07,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:50:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 14:50:07,440 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-04 14:50:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 14:50:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 14:50:07,721 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 14:50:07,722 INFO L202 PluginConnector]: Adding new model nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:50:07 BoogieIcfgContainer [2018-10-04 14:50:07,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 14:50:07,723 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 14:50:07,723 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 14:50:07,735 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 14:50:07,735 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:50:07" (1/1) ... [2018-10-04 14:50:07,749 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 14:50:07,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:07,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 5 states and 7 transitions. [2018-10-04 14:50:07,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 7 transitions. [2018-10-04 14:50:07,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 14:50:07,794 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:07,943 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 14:50:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:08,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 6 states and 8 transitions. [2018-10-04 14:50:08,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 8 transitions. [2018-10-04 14:50:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 14:50:08,185 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:08,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-10-04 14:50:08,899 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-10-04 14:50:08,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 14:50:08,903 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-10-04 14:50:09,495 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-10-04 14:50:09,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-04 14:50:09,496 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:10,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:10,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-10-04 14:50:10,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-10-04 14:50:10,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 14:50:10,317 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:10,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-10-04 14:50:10,864 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-10-04 14:50:10,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 14:50:10,865 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:10,978 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:11,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:11,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-10-04 14:50:11,445 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-10-04 14:50:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 14:50:11,448 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:11,539 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:11,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:11,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-10-04 14:50:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-10-04 14:50:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-04 14:50:11,978 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:12,088 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:12,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-10-04 14:50:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-10-04 14:50:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 14:50:12,415 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:12,512 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-10-04 14:50:12,993 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-10-04 14:50:12,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 14:50:12,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:13,072 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:13,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-10-04 14:50:13,883 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-10-04 14:50:13,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 14:50:13,885 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 14:50:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:14,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 17 states and 39 transitions. [2018-10-04 14:50:14,307 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 39 transitions. [2018-10-04 14:50:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-04 14:50:14,309 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-10-04 14:50:16,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:16,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 29 states and 62 transitions. [2018-10-04 14:50:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 62 transitions. [2018-10-04 14:50:16,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-04 14:50:16,524 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:16,615 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-04 14:50:19,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:19,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2018-10-04 14:50:19,028 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2018-10-04 14:50:19,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-04 14:50:19,030 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-10-04 14:50:23,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:23,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 40 states and 64 transitions. [2018-10-04 14:50:23,264 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2018-10-04 14:50:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-04 14:50:23,266 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:23,316 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-10-04 14:50:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2018-10-04 14:50:26,650 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2018-10-04 14:50:26,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-04 14:50:26,652 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2018-10-04 14:50:30,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:30,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 52 states and 77 transitions. [2018-10-04 14:50:30,269 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2018-10-04 14:50:30,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-04 14:50:30,271 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:30,395 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-10-04 14:50:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:35,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 52 states and 67 transitions. [2018-10-04 14:50:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2018-10-04 14:50:35,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-04 14:50:35,122 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:35,564 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 736 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-10-04 14:50:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 64 states and 90 transitions. [2018-10-04 14:50:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2018-10-04 14:50:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-04 14:50:40,187 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:40,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2018-10-04 14:50:45,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:45,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 64 states and 80 transitions. [2018-10-04 14:50:45,783 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2018-10-04 14:50:45,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-04 14:50:45,784 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:46,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-04 14:50:52,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:52,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 76 states and 103 transitions. [2018-10-04 14:50:52,007 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2018-10-04 14:50:52,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-04 14:50:52,008 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2018-10-04 14:50:59,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:50:59,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 76 states and 93 transitions. [2018-10-04 14:50:59,457 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2018-10-04 14:50:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-04 14:50:59,459 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:50:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:50:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2166 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-10-04 14:51:07,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 88 states and 116 transitions. [2018-10-04 14:51:07,278 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 116 transitions. [2018-10-04 14:51:07,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-04 14:51:07,280 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2239 backedges. 7 proven. 66 refuted. 0 times theorem prover too weak. 2166 trivial. 0 not checked. [2018-10-04 14:51:15,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 88 states and 106 transitions. [2018-10-04 14:51:15,453 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 106 transitions. [2018-10-04 14:51:15,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-04 14:51:15,455 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2954 backedges. 0 proven. 2569 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2018-10-04 14:51:24,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 100 states and 129 transitions. [2018-10-04 14:51:24,772 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 129 transitions. [2018-10-04 14:51:24,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-04 14:51:24,773 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3039 backedges. 8 proven. 77 refuted. 0 times theorem prover too weak. 2954 trivial. 0 not checked. [2018-10-04 14:51:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 100 states and 119 transitions. [2018-10-04 14:51:34,788 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2018-10-04 14:51:34,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-04 14:51:34,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 0 proven. 3424 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2018-10-04 14:51:46,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 112 states and 142 transitions. [2018-10-04 14:51:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 142 transitions. [2018-10-04 14:51:46,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-04 14:51:46,970 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3961 backedges. 9 proven. 88 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2018-10-04 14:51:58,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:51:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 112 states and 132 transitions. [2018-10-04 14:51:58,930 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 132 transitions. [2018-10-04 14:51:58,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-04 14:51:58,931 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:51:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:51:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4896 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-10-04 14:52:11,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:52:11,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 124 states and 144 transitions. [2018-10-04 14:52:11,180 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2018-10-04 14:52:11,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-04 14:52:11,181 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:52:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:52:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5005 backedges. 10 proven. 99 refuted. 0 times theorem prover too weak. 4896 trivial. 0 not checked. [2018-10-04 14:52:23,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 14:52:23,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 124 states and 134 transitions. [2018-10-04 14:52:23,675 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2018-10-04 14:52:23,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-04 14:52:23,676 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 14:52:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 14:52:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6050 backedges. 6041 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown