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 [2018-10-04 13:42:29,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 13:42:29,631 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 13:42:29,643 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 13:42:29,643 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 13:42:29,644 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 13:42:29,646 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 13:42:29,647 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 13:42:29,649 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 13:42:29,650 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 13:42:29,651 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 13:42:29,651 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 13:42:29,652 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 13:42:29,653 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 13:42:29,654 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 13:42:29,655 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 13:42:29,656 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 13:42:29,658 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 13:42:29,663 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 13:42:29,665 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 13:42:29,666 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 13:42:29,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 13:42:29,670 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 13:42:29,671 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 13:42:29,671 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 13:42:29,672 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 13:42:29,673 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 13:42:29,674 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 13:42:29,674 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 13:42:29,676 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 13:42:29,676 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 13:42:29,677 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 13:42:29,677 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 13:42:29,677 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 13:42:29,679 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 13:42:29,679 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 13:42:29,680 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 13:42:29,696 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 13:42:29,696 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 13:42:29,697 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 13:42:29,697 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 13:42:29,698 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 13:42:29,698 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 13:42:29,698 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 13:42:29,698 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 13:42:29,699 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 13:42:29,699 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 13:42:29,699 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 13:42:29,699 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 13:42:29,699 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 13:42:29,700 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 13:42:29,700 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 13:42:29,700 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 13:42:29,700 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 13:42:29,701 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 13:42:29,701 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 13:42:29,701 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 13:42:29,701 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 13:42:29,701 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 13:42:29,702 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 13:42:29,702 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 13:42:29,702 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 13:42:29,702 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 13:42:29,703 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 13:42:29,703 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 13:42:29,703 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 13:42:29,703 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 13:42:29,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 13:42:29,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 13:42:29,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 13:42:29,764 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 13:42:29,765 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 13:42:29,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl [2018-10-04 13:42:29,766 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl' [2018-10-04 13:42:29,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 13:42:29,817 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 13:42:29,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 13:42:29,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 13:42:29,819 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 13:42:29,839 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 01:42:29" (1/1) ... [2018-10-04 13:42:29,851 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 01:42:29" (1/1) ... [2018-10-04 13:42:29,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 13:42:29,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 13:42:29,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 13:42:29,859 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 13:42:29,870 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 01:42:29" (1/1) ... [2018-10-04 13:42:29,870 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 01:42:29" (1/1) ... [2018-10-04 13:42:29,871 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 01:42:29" (1/1) ... [2018-10-04 13:42:29,871 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 01:42:29" (1/1) ... [2018-10-04 13:42:29,874 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 01:42:29" (1/1) ... [2018-10-04 13:42:29,876 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 01:42:29" (1/1) ... [2018-10-04 13:42:29,877 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 01:42:29" (1/1) ... [2018-10-04 13:42:29,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 13:42:29,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 13:42:29,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 13:42:29,879 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 13:42:29,880 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 01:42:29" (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 13:42:29,956 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-04 13:42:29,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 13:42:29,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 13:42:30,199 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 13:42:30,200 INFO L202 PluginConnector]: Adding new model nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:42:30 BoogieIcfgContainer [2018-10-04 13:42:30,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 13:42:30,201 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 13:42:30,201 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 13:42:30,213 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 13:42:30,214 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 01:42:30" (1/1) ... [2018-10-04 13:42:30,227 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 13:42:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:30,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 5 states and 7 transitions. [2018-10-04 13:42:30,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 7 transitions. [2018-10-04 13:42:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 13:42:30,274 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:30,449 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 13:42:30,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:30,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 6 states and 8 transitions. [2018-10-04 13:42:30,683 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 8 transitions. [2018-10-04 13:42:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 13:42:30,684 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:30,767 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 13:42:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:31,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-10-04 13:42:31,396 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-10-04 13:42:31,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 13:42:31,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:31,552 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 13:42:31,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:31,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-10-04 13:42:31,964 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-10-04 13:42:31,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-04 13:42:31,965 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:32,043 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 13:42:32,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-10-04 13:42:32,754 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-10-04 13:42:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 13:42:32,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:32,852 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 13:42:33,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:33,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-10-04 13:42:33,297 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-10-04 13:42:33,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 13:42:33,298 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:33,400 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 13:42:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:33,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-10-04 13:42:33,745 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-10-04 13:42:33,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 13:42:33,746 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:33,839 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 13:42:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-10-04 13:42:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-10-04 13:42:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-04 13:42:34,304 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:34,430 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 13:42:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:34,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-10-04 13:42:34,823 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-10-04 13:42:34,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 13:42:34,824 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:34,923 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 13:42:35,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:35,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-10-04 13:42:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-10-04 13:42:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 13:42:35,472 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:35,558 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 13:42:36,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:36,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-10-04 13:42:36,364 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-10-04 13:42:36,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 13:42:36,365 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:36,459 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 13:42:36,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 17 states and 39 transitions. [2018-10-04 13:42:36,767 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 39 transitions. [2018-10-04 13:42:36,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-04 13:42:36,768 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:36,844 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 13:42:38,613 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 25 new depth: 21 [2018-10-04 13:42:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:39,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 29 states and 62 transitions. [2018-10-04 13:42:39,359 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 62 transitions. [2018-10-04 13:42:39,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-04 13:42:39,360 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:39,432 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 13:42:41,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:41,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2018-10-04 13:42:41,745 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2018-10-04 13:42:41,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-04 13:42:41,746 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:41,859 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 13:42:43,454 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 41 new depth: 40 [2018-10-04 13:42:46,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:46,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 40 states and 64 transitions. [2018-10-04 13:42:46,268 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2018-10-04 13:42:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-04 13:42:46,270 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:46,335 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 13:42:49,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:49,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2018-10-04 13:42:49,722 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2018-10-04 13:42:49,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-04 13:42:49,723 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:49,951 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 13:42:50,873 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 59 new depth: 57 [2018-10-04 13:42:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:42:53,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 52 states and 77 transitions. [2018-10-04 13:42:53,933 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2018-10-04 13:42:53,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-04 13:42:53,953 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:42:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:42:54,057 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 13:42:59,859 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 79 new depth: 77 [2018-10-04 13:43:00,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:43:00,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 52 states and 67 transitions. [2018-10-04 13:43:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2018-10-04 13:43:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-04 13:43:00,590 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:43:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:43:00,857 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 13:43:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:43:05,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 64 states and 90 transitions. [2018-10-04 13:43:05,538 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2018-10-04 13:43:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-04 13:43:05,540 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:43:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:43:05,636 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 13:43:09,783 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 98 new depth: 97 [2018-10-04 13:43:11,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:43:11,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 64 states and 80 transitions. [2018-10-04 13:43:11,837 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2018-10-04 13:43:11,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-04 13:43:11,838 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:43:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:43:12,435 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 13:43:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:43:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 76 states and 103 transitions. [2018-10-04 13:43:18,632 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2018-10-04 13:43:18,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-04 13:43:18,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:43:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:43:18,747 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 13:43:24,583 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 118 new depth: 117 [2018-10-04 13:43:27,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:43:27,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 76 states and 93 transitions. [2018-10-04 13:43:27,709 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2018-10-04 13:43:27,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-04 13:43:27,710 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:43:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:43:28,026 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 13:43:35,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:43:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 88 states and 116 transitions. [2018-10-04 13:43:35,276 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 116 transitions. [2018-10-04 13:43:35,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-04 13:43:35,277 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:43:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:43:35,397 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 13:43:41,561 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 141 new depth: 140 [2018-10-04 13:43:44,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:43:44,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 88 states and 106 transitions. [2018-10-04 13:43:44,439 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 106 transitions. [2018-10-04 13:43:44,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-04 13:43:44,440 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:43:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:43:45,709 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 13:43:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:43:54,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 100 states and 129 transitions. [2018-10-04 13:43:54,722 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 129 transitions. [2018-10-04 13:43:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-04 13:43:54,726 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:43:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:43:54,844 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 13:44:02,555 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 163 new depth: 163 [2018-10-04 13:44:06,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:44:06,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 100 states and 119 transitions. [2018-10-04 13:44:06,235 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2018-10-04 13:44:06,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-04 13:44:06,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:44:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:44:06,794 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 13:44:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:44:18,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 112 states and 142 transitions. [2018-10-04 13:44:18,703 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 142 transitions. [2018-10-04 13:44:18,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-04 13:44:18,704 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:44:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:44:18,806 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 13:44:28,317 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 186 new depth: 185 [2018-10-04 13:44:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:44:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 112 states and 132 transitions. [2018-10-04 13:44:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 132 transitions. [2018-10-04 13:44:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-04 13:44:31,674 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:44:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:44:32,278 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 13:44:44,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:44:44,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 124 states and 144 transitions. [2018-10-04 13:44:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2018-10-04 13:44:44,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-04 13:44:44,029 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:44:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:44:44,127 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 13:44:54,783 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 208 new depth: 207 [2018-10-04 13:44:58,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:44:58,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 124 states and 134 transitions. [2018-10-04 13:44:58,392 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2018-10-04 13:44:58,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-04 13:44:58,393 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:44:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:45:05,733 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 230 new depth: 210 [2018-10-04 13:45:13,676 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 233 new depth: 210 [2018-10-04 13:45:21,862 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 233 new depth: 210 [2018-10-04 13:45:30,395 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 233 new depth: 210 [2018-10-04 13:45:34,026 INFO L134 CoverageAnalysis]: Checked inductivity of 6050 backedges. 6041 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-04 13:45:42,726 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 236 new depth: 215 [2018-10-04 13:46:03,953 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 240 new depth: 227 [2018-10-04 13:46:28,181 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 252 new depth: 240 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown