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/20170304-DifficultPathPrograms/nested1.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-10-01 03:50:53,745 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-01 03:50:53,747 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-01 03:50:53,759 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-01 03:50:53,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-01 03:50:53,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-01 03:50:53,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-01 03:50:53,764 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-01 03:50:53,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-01 03:50:53,766 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-01 03:50:53,767 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-01 03:50:53,767 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-01 03:50:53,768 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-01 03:50:53,769 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-01 03:50:53,771 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-01 03:50:53,771 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-01 03:50:53,772 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-01 03:50:53,774 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-01 03:50:53,776 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-01 03:50:53,778 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-01 03:50:53,779 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-01 03:50:53,780 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-01 03:50:53,783 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-01 03:50:53,783 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-01 03:50:53,783 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-01 03:50:53,784 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-01 03:50:53,785 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-01 03:50:53,786 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-01 03:50:53,787 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-01 03:50:53,788 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-01 03:50:53,788 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-01 03:50:53,789 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-01 03:50:53,789 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-01 03:50:53,790 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-01 03:50:53,791 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-01 03:50:53,791 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-01 03:50:53,792 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 [2018-10-01 03:50:53,818 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-01 03:50:53,818 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-01 03:50:53,819 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-01 03:50:53,819 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-01 03:50:53,820 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-01 03:50:53,820 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-01 03:50:53,820 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-01 03:50:53,821 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-01 03:50:53,822 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-01 03:50:53,822 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-01 03:50:53,822 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-01 03:50:53,822 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-01 03:50:53,822 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-01 03:50:53,823 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-01 03:50:53,823 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-01 03:50:53,823 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-01 03:50:53,823 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-01 03:50:53,824 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-01 03:50:53,825 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-01 03:50:53,825 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-01 03:50:53,825 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-01 03:50:53,825 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-01 03:50:53,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-01 03:50:53,826 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-01 03:50:53,826 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-01 03:50:53,826 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-01 03:50:53,826 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-01 03:50:53,826 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-01 03:50:53,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-01 03:50:53,827 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-01 03:50:53,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-01 03:50:53,905 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-01 03:50:53,909 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-01 03:50:53,911 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-01 03:50:53,911 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-01 03:50:53,912 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested1.i_4.bpl [2018-10-01 03:50:53,912 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested1.i_4.bpl' [2018-10-01 03:50:53,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-01 03:50:53,983 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-01 03:50:53,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-01 03:50:53,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-01 03:50:53,984 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-01 03:50:54,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (1/1) ... [2018-10-01 03:50:54,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (1/1) ... [2018-10-01 03:50:54,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-01 03:50:54,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-01 03:50:54,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-01 03:50:54,033 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-01 03:50:54,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (1/1) ... [2018-10-01 03:50:54,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (1/1) ... [2018-10-01 03:50:54,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (1/1) ... [2018-10-01 03:50:54,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (1/1) ... [2018-10-01 03:50:54,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (1/1) ... [2018-10-01 03:50:54,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (1/1) ... [2018-10-01 03:50:54,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (1/1) ... [2018-10-01 03:50:54,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-01 03:50:54,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-01 03:50:54,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-01 03:50:54,059 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-01 03:50:54,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 03:50:53" (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 [2018-10-01 03:50:54,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-01 03:50:54,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-01 03:50:54,378 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-01 03:50:54,379 INFO L202 PluginConnector]: Adding new model nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.10 03:50:54 BoogieIcfgContainer [2018-10-01 03:50:54,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-01 03:50:54,379 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-01 03:50:54,379 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-01 03:50:54,391 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-01 03:50:54,391 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested1.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.10 03:50:54" (1/1) ... [2018-10-01 03:50:54,405 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-01 03:50:54,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:50:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-10-01 03:50:54,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-10-01 03:50:54,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-01 03:50:54,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:50:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:50:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 03:50:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:50:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-10-01 03:50:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-10-01 03:50:54,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-01 03:50:54,952 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:50:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:50:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 03:50:55,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:50:55,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-10-01 03:50:55,562 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-10-01 03:50:55,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-01 03:50:55,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:50:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:50:55,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 03:50:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:50:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-10-01 03:50:56,146 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-10-01 03:50:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-01 03:50:56,147 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:50:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:50:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-01 03:50:57,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:50:57,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2018-10-01 03:50:57,461 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-10-01 03:50:57,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-01 03:50:57,463 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:50:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:50:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-01 03:50:58,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:50:58,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2018-10-01 03:50:58,582 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-10-01 03:50:58,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-01 03:50:58,583 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:50:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:50:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-01 03:50:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:50:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2018-10-01 03:50:59,755 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-10-01 03:50:59,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-01 03:50:59,756 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:50:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:50:59,905 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-01 03:51:00,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 35 states and 39 transitions. [2018-10-01 03:51:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-10-01 03:51:00,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-01 03:51:00,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 70 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-10-01 03:51:01,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:01,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 37 states and 41 transitions. [2018-10-01 03:51:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-10-01 03:51:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-01 03:51:01,783 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:01,861 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 120 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-10-01 03:51:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 39 states and 43 transitions. [2018-10-01 03:51:02,533 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-10-01 03:51:02,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-01 03:51:02,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:02,834 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-10-01 03:51:04,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:04,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 49 states and 54 transitions. [2018-10-01 03:51:04,353 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-10-01 03:51:04,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-01 03:51:04,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:04,545 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 262 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-10-01 03:51:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 59 states and 65 transitions. [2018-10-01 03:51:06,230 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2018-10-01 03:51:06,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-01 03:51:06,231 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 322 proven. 12 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2018-10-01 03:51:08,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:08,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 61 states and 67 transitions. [2018-10-01 03:51:08,110 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2018-10-01 03:51:08,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-01 03:51:08,112 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:08,375 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-01 03:51:10,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:10,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 71 states and 78 transitions. [2018-10-01 03:51:10,161 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2018-10-01 03:51:10,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-01 03:51:10,163 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 448 proven. 12 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2018-10-01 03:51:11,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 73 states and 80 transitions. [2018-10-01 03:51:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2018-10-01 03:51:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-01 03:51:11,725 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:11,947 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 0 proven. 694 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-10-01 03:51:14,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:14,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 83 states and 91 transitions. [2018-10-01 03:51:14,275 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2018-10-01 03:51:14,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-01 03:51:14,277 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 574 proven. 12 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2018-10-01 03:51:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:16,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 85 states and 93 transitions. [2018-10-01 03:51:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2018-10-01 03:51:16,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-01 03:51:16,180 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:16,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 0 proven. 988 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2018-10-01 03:51:18,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 95 states and 104 transitions. [2018-10-01 03:51:18,867 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 104 transitions. [2018-10-01 03:51:18,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-01 03:51:18,868 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 700 proven. 12 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2018-10-01 03:51:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:20,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 97 states and 106 transitions. [2018-10-01 03:51:20,197 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2018-10-01 03:51:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-01 03:51:20,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1478 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-10-01 03:51:23,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:23,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 107 states and 117 transitions. [2018-10-01 03:51:23,071 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 117 transitions. [2018-10-01 03:51:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-01 03:51:23,072 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 826 proven. 12 refuted. 0 times theorem prover too weak. 974 trivial. 0 not checked. [2018-10-01 03:51:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:25,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 109 states and 119 transitions. [2018-10-01 03:51:25,258 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2018-10-01 03:51:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-01 03:51:25,258 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 0 proven. 1732 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2018-10-01 03:51:28,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 119 states and 130 transitions. [2018-10-01 03:51:28,680 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2018-10-01 03:51:28,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-01 03:51:28,681 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2272 backedges. 952 proven. 12 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2018-10-01 03:51:30,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 121 states and 132 transitions. [2018-10-01 03:51:30,670 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 132 transitions. [2018-10-01 03:51:30,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-01 03:51:30,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:31,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2366 backedges. 0 proven. 2182 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-10-01 03:51:35,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:35,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 131 states and 143 transitions. [2018-10-01 03:51:35,097 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2018-10-01 03:51:35,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-10-01 03:51:35,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 1078 proven. 12 refuted. 0 times theorem prover too weak. 1694 trivial. 0 not checked. [2018-10-01 03:51:37,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 133 states and 145 transitions. [2018-10-01 03:51:37,108 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2018-10-01 03:51:37,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-01 03:51:37,109 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:37,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 0 proven. 2684 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2018-10-01 03:51:41,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:41,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 143 states and 156 transitions. [2018-10-01 03:51:41,511 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 156 transitions. [2018-10-01 03:51:41,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-01 03:51:41,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3348 backedges. 1204 proven. 12 refuted. 0 times theorem prover too weak. 2132 trivial. 0 not checked. [2018-10-01 03:51:44,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:44,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 145 states and 158 transitions. [2018-10-01 03:51:44,824 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 158 transitions. [2018-10-01 03:51:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-01 03:51:44,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3462 backedges. 0 proven. 3238 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2018-10-01 03:51:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 155 states and 169 transitions. [2018-10-01 03:51:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 169 transitions. [2018-10-01 03:51:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-01 03:51:49,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3964 backedges. 1330 proven. 12 refuted. 0 times theorem prover too weak. 2622 trivial. 0 not checked. [2018-10-01 03:51:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:52,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 157 states and 171 transitions. [2018-10-01 03:51:52,356 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 171 transitions. [2018-10-01 03:51:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-01 03:51:52,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4088 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2018-10-01 03:51:57,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:51:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 167 states and 182 transitions. [2018-10-01 03:51:57,781 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 182 transitions. [2018-10-01 03:51:57,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-10-01 03:51:57,782 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:51:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:51:57,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4632 backedges. 1456 proven. 12 refuted. 0 times theorem prover too weak. 3164 trivial. 0 not checked. [2018-10-01 03:52:02,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:02,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 169 states and 184 transitions. [2018-10-01 03:52:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 184 transitions. [2018-10-01 03:52:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-10-01 03:52:02,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4766 backedges. 0 proven. 4502 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-10-01 03:52:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:10,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 179 states and 195 transitions. [2018-10-01 03:52:10,069 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 195 transitions. [2018-10-01 03:52:10,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-10-01 03:52:10,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 5352 backedges. 1582 proven. 12 refuted. 0 times theorem prover too weak. 3758 trivial. 0 not checked. [2018-10-01 03:52:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 181 states and 197 transitions. [2018-10-01 03:52:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 197 transitions. [2018-10-01 03:52:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-01 03:52:13,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5496 backedges. 0 proven. 5212 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2018-10-01 03:52:19,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:19,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 191 states and 208 transitions. [2018-10-01 03:52:19,763 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 208 transitions. [2018-10-01 03:52:19,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-01 03:52:19,765 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:19,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6124 backedges. 1708 proven. 12 refuted. 0 times theorem prover too weak. 4404 trivial. 0 not checked. [2018-10-01 03:52:23,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:23,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 193 states and 210 transitions. [2018-10-01 03:52:23,446 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 210 transitions. [2018-10-01 03:52:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-01 03:52:23,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 6278 backedges. 0 proven. 5974 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2018-10-01 03:52:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:30,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 203 states and 221 transitions. [2018-10-01 03:52:30,548 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 221 transitions. [2018-10-01 03:52:30,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-10-01 03:52:30,549 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:30,710 INFO L134 CoverageAnalysis]: Checked inductivity of 6948 backedges. 1834 proven. 12 refuted. 0 times theorem prover too weak. 5102 trivial. 0 not checked. [2018-10-01 03:52:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 205 states and 223 transitions. [2018-10-01 03:52:34,660 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 223 transitions. [2018-10-01 03:52:34,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-10-01 03:52:34,662 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 7112 backedges. 0 proven. 6788 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2018-10-01 03:52:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:42,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 215 states and 234 transitions. [2018-10-01 03:52:42,689 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 234 transitions. [2018-10-01 03:52:42,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-01 03:52:42,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:42,902 INFO L134 CoverageAnalysis]: Checked inductivity of 7824 backedges. 1960 proven. 12 refuted. 0 times theorem prover too weak. 5852 trivial. 0 not checked. [2018-10-01 03:52:47,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:47,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 217 states and 236 transitions. [2018-10-01 03:52:47,734 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 236 transitions. [2018-10-01 03:52:47,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-10-01 03:52:47,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 7998 backedges. 0 proven. 7654 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2018-10-01 03:52:56,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:52:56,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 227 states and 247 transitions. [2018-10-01 03:52:56,890 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 247 transitions. [2018-10-01 03:52:56,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-01 03:52:56,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:52:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:52:57,095 INFO L134 CoverageAnalysis]: Checked inductivity of 8752 backedges. 2086 proven. 12 refuted. 0 times theorem prover too weak. 6654 trivial. 0 not checked. [2018-10-01 03:53:02,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:53:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 229 states and 249 transitions. [2018-10-01 03:53:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 249 transitions. [2018-10-01 03:53:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-10-01 03:53:02,003 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:53:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:53:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 8936 backedges. 0 proven. 8572 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2018-10-01 03:53:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:53:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 239 states and 260 transitions. [2018-10-01 03:53:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 260 transitions. [2018-10-01 03:53:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-10-01 03:53:11,656 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:53:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:53:11,842 INFO L134 CoverageAnalysis]: Checked inductivity of 9732 backedges. 2212 proven. 12 refuted. 0 times theorem prover too weak. 7508 trivial. 0 not checked. [2018-10-01 03:53:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:53:17,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 241 states and 262 transitions. [2018-10-01 03:53:17,625 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 262 transitions. [2018-10-01 03:53:17,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-10-01 03:53:17,626 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:53:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:53:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 9926 backedges. 0 proven. 9542 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2018-10-01 03:53:27,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:53:27,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 251 states and 273 transitions. [2018-10-01 03:53:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 273 transitions. [2018-10-01 03:53:27,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-10-01 03:53:27,784 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:53:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:53:27,999 INFO L134 CoverageAnalysis]: Checked inductivity of 10764 backedges. 2338 proven. 12 refuted. 0 times theorem prover too weak. 8414 trivial. 0 not checked. [2018-10-01 03:53:34,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:53:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 253 states and 275 transitions. [2018-10-01 03:53:34,244 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 275 transitions. [2018-10-01 03:53:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-10-01 03:53:34,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:53:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:53:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 10968 backedges. 0 proven. 10564 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2018-10-01 03:53:45,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:53:45,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 263 states and 286 transitions. [2018-10-01 03:53:45,338 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 286 transitions. [2018-10-01 03:53:45,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-10-01 03:53:45,341 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:53:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:53:45,539 INFO L134 CoverageAnalysis]: Checked inductivity of 11848 backedges. 2464 proven. 12 refuted. 0 times theorem prover too weak. 9372 trivial. 0 not checked. [2018-10-01 03:53:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:53:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 265 states and 288 transitions. [2018-10-01 03:53:52,210 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 288 transitions. [2018-10-01 03:53:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-10-01 03:53:52,211 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:53:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:53:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 12062 backedges. 0 proven. 11638 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2018-10-01 03:54:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:54:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 275 states and 299 transitions. [2018-10-01 03:54:04,099 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 299 transitions. [2018-10-01 03:54:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-10-01 03:54:04,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:54:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:54:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 12984 backedges. 2590 proven. 12 refuted. 0 times theorem prover too weak. 10382 trivial. 0 not checked. [2018-10-01 03:54:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:54:11,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 277 states and 301 transitions. [2018-10-01 03:54:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 301 transitions. [2018-10-01 03:54:11,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-10-01 03:54:11,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:54:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:54:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 13208 backedges. 0 proven. 12764 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2018-10-01 03:54:24,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:54:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 287 states and 312 transitions. [2018-10-01 03:54:24,593 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 312 transitions. [2018-10-01 03:54:24,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-10-01 03:54:24,594 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:54:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:54:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 14172 backedges. 2716 proven. 12 refuted. 0 times theorem prover too weak. 11444 trivial. 0 not checked. [2018-10-01 03:54:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:54:32,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 289 states and 314 transitions. [2018-10-01 03:54:32,438 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 314 transitions. [2018-10-01 03:54:32,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-10-01 03:54:32,439 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:54:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:54:33,215 INFO L134 CoverageAnalysis]: Checked inductivity of 14406 backedges. 0 proven. 13942 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2018-10-01 03:54:46,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:54:46,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 299 states and 325 transitions. [2018-10-01 03:54:46,436 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 325 transitions. [2018-10-01 03:54:46,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-10-01 03:54:46,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:54:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:54:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 15412 backedges. 2842 proven. 12 refuted. 0 times theorem prover too weak. 12558 trivial. 0 not checked. [2018-10-01 03:54:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:54:55,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 301 states and 327 transitions. [2018-10-01 03:54:55,383 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 327 transitions. [2018-10-01 03:54:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-10-01 03:54:55,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:54:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:54:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 15656 backedges. 0 proven. 15172 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2018-10-01 03:55:10,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:55:10,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 311 states and 338 transitions. [2018-10-01 03:55:10,334 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 338 transitions. [2018-10-01 03:55:10,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-10-01 03:55:10,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:55:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:55:10,480 INFO L134 CoverageAnalysis]: Checked inductivity of 16704 backedges. 2968 proven. 12 refuted. 0 times theorem prover too weak. 13724 trivial. 0 not checked. [2018-10-01 03:55:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:55:19,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 313 states and 340 transitions. [2018-10-01 03:55:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 340 transitions. [2018-10-01 03:55:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-10-01 03:55:19,645 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:55:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:55:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 16958 backedges. 0 proven. 16454 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2018-10-01 03:55:35,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:55:35,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 323 states and 351 transitions. [2018-10-01 03:55:35,708 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 351 transitions. [2018-10-01 03:55:35,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-10-01 03:55:35,709 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:55:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:55:35,812 INFO L134 CoverageAnalysis]: Checked inductivity of 18048 backedges. 3094 proven. 12 refuted. 0 times theorem prover too weak. 14942 trivial. 0 not checked. [2018-10-01 03:55:45,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:55:45,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 325 states and 353 transitions. [2018-10-01 03:55:45,791 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 353 transitions. [2018-10-01 03:55:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-10-01 03:55:45,792 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:55:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:55:46,406 INFO L134 CoverageAnalysis]: Checked inductivity of 18312 backedges. 0 proven. 17788 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2018-10-01 03:56:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:56:03,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 335 states and 364 transitions. [2018-10-01 03:56:03,035 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 364 transitions. [2018-10-01 03:56:03,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-10-01 03:56:03,036 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:56:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:56:03,260 INFO L134 CoverageAnalysis]: Checked inductivity of 19444 backedges. 3220 proven. 12 refuted. 0 times theorem prover too weak. 16212 trivial. 0 not checked. [2018-10-01 03:56:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:56:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 337 states and 366 transitions. [2018-10-01 03:56:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 366 transitions. [2018-10-01 03:56:14,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-10-01 03:56:14,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:56:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:56:14,897 INFO L134 CoverageAnalysis]: Checked inductivity of 19718 backedges. 0 proven. 19174 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2018-10-01 03:56:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:56:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 347 states and 377 transitions. [2018-10-01 03:56:32,450 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 377 transitions. [2018-10-01 03:56:32,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-10-01 03:56:32,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:56:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:56:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 20892 backedges. 3346 proven. 12 refuted. 0 times theorem prover too weak. 17534 trivial. 0 not checked. [2018-10-01 03:56:44,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:56:44,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 349 states and 379 transitions. [2018-10-01 03:56:44,141 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 379 transitions. [2018-10-01 03:56:44,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-10-01 03:56:44,142 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:56:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:56:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 21176 backedges. 0 proven. 20612 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2018-10-01 03:57:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:57:03,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 359 states and 390 transitions. [2018-10-01 03:57:03,848 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 390 transitions. [2018-10-01 03:57:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-10-01 03:57:03,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:57:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:57:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 22392 backedges. 3472 proven. 12 refuted. 0 times theorem prover too weak. 18908 trivial. 0 not checked. [2018-10-01 03:57:16,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:57:16,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 361 states and 392 transitions. [2018-10-01 03:57:16,786 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 392 transitions. [2018-10-01 03:57:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-10-01 03:57:16,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:57:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:57:17,556 INFO L134 CoverageAnalysis]: Checked inductivity of 22686 backedges. 0 proven. 22102 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2018-10-01 03:57:38,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:57:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 371 states and 403 transitions. [2018-10-01 03:57:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 403 transitions. [2018-10-01 03:57:38,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-10-01 03:57:38,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:57:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:57:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 23944 backedges. 3598 proven. 12 refuted. 0 times theorem prover too weak. 20334 trivial. 0 not checked. [2018-10-01 03:57:51,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:57:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 373 states and 405 transitions. [2018-10-01 03:57:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 405 transitions. [2018-10-01 03:57:51,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2018-10-01 03:57:51,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:57:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:57:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 24248 backedges. 0 proven. 23644 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2018-10-01 03:58:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:58:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 383 states and 416 transitions. [2018-10-01 03:58:14,986 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 416 transitions. [2018-10-01 03:58:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2018-10-01 03:58:14,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:58:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:58:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 25548 backedges. 3724 proven. 12 refuted. 0 times theorem prover too weak. 21812 trivial. 0 not checked. [2018-10-01 03:58:29,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:58:29,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 385 states and 418 transitions. [2018-10-01 03:58:29,683 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 418 transitions. [2018-10-01 03:58:29,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2018-10-01 03:58:29,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:58:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:58:30,497 INFO L134 CoverageAnalysis]: Checked inductivity of 25862 backedges. 0 proven. 25238 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2018-10-01 03:58:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:58:53,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 395 states and 429 transitions. [2018-10-01 03:58:53,594 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 429 transitions. [2018-10-01 03:58:53,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2018-10-01 03:58:53,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:58:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:58:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 27204 backedges. 3850 proven. 12 refuted. 0 times theorem prover too weak. 23342 trivial. 0 not checked. [2018-10-01 03:59:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:59:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 397 states and 431 transitions. [2018-10-01 03:59:09,286 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 431 transitions. [2018-10-01 03:59:09,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2018-10-01 03:59:09,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:59:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:59:10,162 INFO L134 CoverageAnalysis]: Checked inductivity of 27528 backedges. 0 proven. 26884 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2018-10-01 03:59:34,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:59:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 407 states and 442 transitions. [2018-10-01 03:59:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 442 transitions. [2018-10-01 03:59:34,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-10-01 03:59:34,646 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:59:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:59:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 28912 backedges. 3976 proven. 12 refuted. 0 times theorem prover too weak. 24924 trivial. 0 not checked. [2018-10-01 03:59:51,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 03:59:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 409 states and 444 transitions. [2018-10-01 03:59:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 444 transitions. [2018-10-01 03:59:51,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-10-01 03:59:51,495 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 03:59:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 03:59:52,407 INFO L134 CoverageAnalysis]: Checked inductivity of 29246 backedges. 0 proven. 28582 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2018-10-01 04:00:19,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:00:19,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 419 states and 455 transitions. [2018-10-01 04:00:19,139 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 455 transitions. [2018-10-01 04:00:19,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2018-10-01 04:00:19,141 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:00:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:00:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 30672 backedges. 4102 proven. 12 refuted. 0 times theorem prover too weak. 26558 trivial. 0 not checked. [2018-10-01 04:00:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:00:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 421 states and 457 transitions. [2018-10-01 04:00:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 457 transitions. [2018-10-01 04:00:37,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2018-10-01 04:00:37,326 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:00:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:00:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 31016 backedges. 0 proven. 30332 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2018-10-01 04:01:06,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:01:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 431 states and 468 transitions. [2018-10-01 04:01:06,225 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 468 transitions. [2018-10-01 04:01:06,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2018-10-01 04:01:06,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:01:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:01:06,402 INFO L134 CoverageAnalysis]: Checked inductivity of 32484 backedges. 4228 proven. 12 refuted. 0 times theorem prover too weak. 28244 trivial. 0 not checked. [2018-10-01 04:01:24,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:01:24,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 433 states and 470 transitions. [2018-10-01 04:01:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 470 transitions. [2018-10-01 04:01:24,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2018-10-01 04:01:24,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:01:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:01:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 32838 backedges. 0 proven. 32134 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2018-10-01 04:01:54,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:01:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 443 states and 481 transitions. [2018-10-01 04:01:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 481 transitions. [2018-10-01 04:01:54,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2018-10-01 04:01:54,978 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:01:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:01:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 34348 backedges. 4354 proven. 12 refuted. 0 times theorem prover too weak. 29982 trivial. 0 not checked. [2018-10-01 04:02:14,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:02:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 445 states and 483 transitions. [2018-10-01 04:02:14,978 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 483 transitions. [2018-10-01 04:02:14,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2018-10-01 04:02:14,980 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:02:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:02:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 34712 backedges. 0 proven. 33988 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2018-10-01 04:02:46,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:02:46,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 455 states and 494 transitions. [2018-10-01 04:02:46,820 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 494 transitions. [2018-10-01 04:02:46,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2018-10-01 04:02:46,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:02:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:02:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 36264 backedges. 4480 proven. 12 refuted. 0 times theorem prover too weak. 31772 trivial. 0 not checked. [2018-10-01 04:03:08,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:03:08,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 457 states and 496 transitions. [2018-10-01 04:03:08,102 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 496 transitions. [2018-10-01 04:03:08,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2018-10-01 04:03:08,104 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:03:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:03:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 36638 backedges. 0 proven. 35894 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2018-10-01 04:03:41,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:03:41,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 467 states and 507 transitions. [2018-10-01 04:03:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 507 transitions. [2018-10-01 04:03:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2018-10-01 04:03:41,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:03:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:03:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 38232 backedges. 4606 proven. 12 refuted. 0 times theorem prover too weak. 33614 trivial. 0 not checked. [2018-10-01 04:04:04,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:04:04,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 469 states and 509 transitions. [2018-10-01 04:04:04,247 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 509 transitions. [2018-10-01 04:04:04,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2018-10-01 04:04:04,248 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:04:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:04:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 38616 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2018-10-01 04:04:39,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-01 04:04:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 479 states and 520 transitions. [2018-10-01 04:04:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 520 transitions. [2018-10-01 04:04:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2018-10-01 04:04:39,501 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-10-01 04:04:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 04:04:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 40252 backedges. 4732 proven. 12 refuted. 0 times theorem prover too weak. 35508 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown