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 0.1.23-2eb0a67 [2018-10-03 10:08:05,879 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-03 10:08:05,881 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-03 10:08:05,893 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-03 10:08:05,894 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-03 10:08:05,895 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-03 10:08:05,896 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-03 10:08:05,898 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-03 10:08:05,900 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-03 10:08:05,900 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-03 10:08:05,901 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-03 10:08:05,902 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-03 10:08:05,902 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-03 10:08:05,904 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-03 10:08:05,905 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-03 10:08:05,906 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-03 10:08:05,906 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-03 10:08:05,908 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-03 10:08:05,910 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-03 10:08:05,912 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-03 10:08:05,913 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-03 10:08:05,914 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-03 10:08:05,917 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-03 10:08:05,917 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-03 10:08:05,917 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-03 10:08:05,918 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-03 10:08:05,919 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-03 10:08:05,920 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-03 10:08:05,921 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-03 10:08:05,922 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-03 10:08:05,922 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-03 10:08:05,923 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-03 10:08:05,923 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-03 10:08:05,924 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-03 10:08:05,925 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-03 10:08:05,926 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-03 10:08:05,926 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 10:08:05,941 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-03 10:08:05,942 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-03 10:08:05,943 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-03 10:08:05,943 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-03 10:08:05,943 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-03 10:08:05,943 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-03 10:08:05,944 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-03 10:08:05,944 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-03 10:08:05,944 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-03 10:08:05,944 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-03 10:08:05,944 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-03 10:08:05,945 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-03 10:08:05,945 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-03 10:08:05,945 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-03 10:08:05,945 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-03 10:08:05,945 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-03 10:08:05,946 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-03 10:08:05,946 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-03 10:08:05,946 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-03 10:08:05,946 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-03 10:08:05,946 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-03 10:08:05,946 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-03 10:08:05,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-03 10:08:05,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-03 10:08:05,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-03 10:08:05,947 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-03 10:08:05,947 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-03 10:08:05,948 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-03 10:08:05,948 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-03 10:08:05,948 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-03 10:08:06,007 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-03 10:08:06,024 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-03 10:08:06,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-03 10:08:06,033 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-03 10:08:06,034 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-03 10:08:06,034 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl [2018-10-03 10:08:06,035 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl' [2018-10-03 10:08:06,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-03 10:08:06,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-03 10:08:06,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-03 10:08:06,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-03 10:08:06,104 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-03 10:08:06,128 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,141 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-03 10:08:06,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-03 10:08:06,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-03 10:08:06,149 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-03 10:08:06,162 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,162 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,163 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,164 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,168 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,170 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,171 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-03 10:08:06,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-03 10:08:06,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-03 10:08:06,178 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-03 10:08:06,179 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 03.10 10:08:06" (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 10:08:06,260 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-03 10:08:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-03 10:08:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-03 10:08:06,449 INFO L340 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-03 10:08:06,450 INFO L202 PluginConnector]: Adding new model nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 10:08:06 BoogieIcfgContainer [2018-10-03 10:08:06,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-03 10:08:06,451 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-03 10:08:06,451 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-03 10:08:06,465 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-03 10:08:06,466 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 03.10 10:08:06" (1/1) ... [2018-10-03 10:08:06,477 INFO L106 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-03 10:08:06,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:06,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 5 states and 7 transitions. [2018-10-03 10:08:06,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 7 transitions. [2018-10-03 10:08:06,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-03 10:08:06,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:06,648 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 10:08:06,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:06,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 6 states and 8 transitions. [2018-10-03 10:08:06,892 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 8 transitions. [2018-10-03 10:08:06,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-03 10:08:06,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:06,981 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 10:08:07,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-10-03 10:08:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-10-03 10:08:07,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-03 10:08:07,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:08,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-10-03 10:08:08,186 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-10-03 10:08:08,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-03 10:08:08,187 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:08,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:09,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-10-03 10:08:09,051 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-10-03 10:08:09,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-03 10:08:09,052 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:09,136 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:09,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-10-03 10:08:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-10-03 10:08:09,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-03 10:08:09,660 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:09,762 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:10,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:10,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-10-03 10:08:10,113 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-10-03 10:08:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-03 10:08:10,115 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:10,198 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:10,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:10,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-10-03 10:08:10,654 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-10-03 10:08:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-03 10:08:10,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:11,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-10-03 10:08:11,111 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-10-03 10:08:11,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-03 10:08:11,112 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:11,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:11,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-10-03 10:08:11,708 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-10-03 10:08:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-03 10:08:11,709 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:12,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:12,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-10-03 10:08:12,655 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-10-03 10:08:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-03 10:08:12,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 10:08:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:13,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 17 states and 39 transitions. [2018-10-03 10:08:13,073 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 39 transitions. [2018-10-03 10:08:13,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-03 10:08:13,075 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-10-03 10:08:15,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:15,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 29 states and 62 transitions. [2018-10-03 10:08:15,426 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 62 transitions. [2018-10-03 10:08:15,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-03 10:08:15,427 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-03 10:08:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:17,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2018-10-03 10:08:17,986 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2018-10-03 10:08:17,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-03 10:08:17,987 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-10-03 10:08:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 40 states and 64 transitions. [2018-10-03 10:08:22,590 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2018-10-03 10:08:22,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-03 10:08:22,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:22,646 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-10-03 10:08:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:25,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2018-10-03 10:08:25,891 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2018-10-03 10:08:25,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-03 10:08:25,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2018-10-03 10:08:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 52 states and 77 transitions. [2018-10-03 10:08:29,703 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2018-10-03 10:08:29,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-03 10:08:29,705 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:29,809 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-10-03 10:08:34,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 52 states and 67 transitions. [2018-10-03 10:08:34,521 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2018-10-03 10:08:34,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-03 10:08:34,522 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 736 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-10-03 10:08:40,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 64 states and 90 transitions. [2018-10-03 10:08:40,317 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2018-10-03 10:08:40,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-03 10:08:40,318 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:40,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2018-10-03 10:08:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:45,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 64 states and 80 transitions. [2018-10-03 10:08:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2018-10-03 10:08:45,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-03 10:08:45,960 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:46,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-03 10:08:52,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 76 states and 103 transitions. [2018-10-03 10:08:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2018-10-03 10:08:52,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-03 10:08:52,326 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:52,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2018-10-03 10:08:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:08:59,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 76 states and 93 transitions. [2018-10-03 10:08:59,105 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2018-10-03 10:08:59,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-03 10:08:59,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:08:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:08:59,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2166 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-10-03 10:09:07,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:09:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 88 states and 116 transitions. [2018-10-03 10:09:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 116 transitions. [2018-10-03 10:09:07,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-03 10:09:07,254 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:09:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:09:07,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2239 backedges. 7 proven. 66 refuted. 0 times theorem prover too weak. 2166 trivial. 0 not checked. [2018-10-03 10:09:15,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:09:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 88 states and 106 transitions. [2018-10-03 10:09:15,201 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 106 transitions. [2018-10-03 10:09:15,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-03 10:09:15,202 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:09:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:09:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2954 backedges. 0 proven. 2569 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2018-10-03 10:09:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:09:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 100 states and 129 transitions. [2018-10-03 10:09:24,424 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 129 transitions. [2018-10-03 10:09:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-03 10:09:24,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:09:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:09:24,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3039 backedges. 8 proven. 77 refuted. 0 times theorem prover too weak. 2954 trivial. 0 not checked. [2018-10-03 10:09:34,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:09:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 100 states and 119 transitions. [2018-10-03 10:09:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2018-10-03 10:09:34,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-03 10:09:34,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:09:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:09:35,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 0 proven. 3424 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2018-10-03 10:09:46,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:09:46,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 112 states and 142 transitions. [2018-10-03 10:09:46,853 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 142 transitions. [2018-10-03 10:09:46,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-03 10:09:46,854 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:09:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:09:46,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3961 backedges. 9 proven. 88 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2018-10-03 10:09:58,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:09:58,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 112 states and 132 transitions. [2018-10-03 10:09:58,256 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 132 transitions. [2018-10-03 10:09:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-03 10:09:58,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:09:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:09:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4896 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-10-03 10:10:10,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:10:10,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 124 states and 144 transitions. [2018-10-03 10:10:10,424 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2018-10-03 10:10:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-03 10:10:10,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:10:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:10:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 5005 backedges. 10 proven. 99 refuted. 0 times theorem prover too weak. 4896 trivial. 0 not checked. [2018-10-03 10:10:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-03 10:10:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 124 states and 134 transitions. [2018-10-03 10:10:23,218 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2018-10-03 10:10:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-03 10:10:23,219 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-03 10:10:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 10:10:50,811 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