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/down.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 22:52:30,973 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 22:52:30,975 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 22:52:30,988 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 22:52:30,988 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 22:52:30,989 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 22:52:30,991 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 22:52:30,992 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 22:52:30,994 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 22:52:30,995 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 22:52:30,996 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 22:52:30,996 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 22:52:30,997 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 22:52:30,998 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 22:52:30,999 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 22:52:31,003 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 22:52:31,004 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 22:52:31,006 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 22:52:31,009 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 22:52:31,013 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 22:52:31,014 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 22:52:31,016 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 22:52:31,018 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 22:52:31,018 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 22:52:31,018 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 22:52:31,019 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 22:52:31,020 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 22:52:31,021 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 22:52:31,022 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 22:52:31,022 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 22:52:31,023 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 22:52:31,023 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 22:52:31,024 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 22:52:31,024 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 22:52:31,025 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 22:52:31,025 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 22:52:31,026 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 [2018-09-26 22:52:31,041 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 22:52:31,042 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 22:52:31,043 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 22:52:31,043 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 22:52:31,044 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 22:52:31,044 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 22:52:31,044 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 22:52:31,044 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 22:52:31,045 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 22:52:31,045 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 22:52:31,045 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 22:52:31,045 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 22:52:31,045 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 22:52:31,046 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 22:52:31,046 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 22:52:31,046 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 22:52:31,046 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 22:52:31,046 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 22:52:31,047 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 22:52:31,047 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 22:52:31,047 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 22:52:31,047 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 22:52:31,047 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:52:31,048 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 22:52:31,048 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 22:52:31,048 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 22:52:31,048 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 22:52:31,049 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 22:52:31,049 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 22:52:31,049 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 22:52:31,107 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 22:52:31,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 22:52:31,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 22:52:31,128 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 22:52:31,130 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 22:52:31,131 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/down.i_4.bpl [2018-09-26 22:52:31,131 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/down.i_4.bpl' [2018-09-26 22:52:31,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 22:52:31,204 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 22:52:31,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 22:52:31,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 22:52:31,206 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 22:52:31,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 22:52:31,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 22:52:31,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 22:52:31,253 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 22:52:31,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 22:52:31,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 22:52:31,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 22:52:31,280 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 22:52:31,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:31" (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 [2018-09-26 22:52:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 22:52:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 22:52:31,738 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 22:52:31,739 INFO L202 PluginConnector]: Adding new model down.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:52:31 BoogieIcfgContainer [2018-09-26 22:52:31,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 22:52:31,740 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 22:52:31,740 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 22:52:31,752 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 22:52:31,753 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "down.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:52:31" (1/1) ... [2018-09-26 22:52:31,768 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 22:52:31,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:31,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-09-26 22:52:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-26 22:52:31,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:52:31,814 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:32,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:32,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-09-26 22:52:32,805 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-09-26 22:52:32,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:52:32,805 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:35,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:35,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 12 states and 19 transitions. [2018-09-26 22:52:35,173 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 19 transitions. [2018-09-26 22:52:35,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:52:35,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:35,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:38,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 16 states and 27 transitions. [2018-09-26 22:52:38,426 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 27 transitions. [2018-09-26 22:52:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:52:38,427 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:38,690 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:40,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:40,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-09-26 22:52:40,680 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-09-26 22:52:40,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 22:52:40,681 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:40,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:43,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2018-09-26 22:52:43,406 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-09-26 22:52:43,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 22:52:43,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:43,932 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:47,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-09-26 22:52:47,315 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-09-26 22:52:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 22:52:47,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 28 states and 44 transitions. [2018-09-26 22:52:52,129 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2018-09-26 22:52:52,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-26 22:52:52,130 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:52,794 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:56,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-09-26 22:52:56,541 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-09-26 22:52:56,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-26 22:52:56,542 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:57,005 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:02,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 34 states and 56 transitions. [2018-09-26 22:53:02,828 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2018-09-26 22:53:02,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-26 22:53:02,830 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:10,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:10,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 36 states and 58 transitions. [2018-09-26 22:53:10,449 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2018-09-26 22:53:10,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-26 22:53:10,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:19,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:19,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 69 transitions. [2018-09-26 22:53:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2018-09-26 22:53:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-26 22:53:19,419 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 42 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:30,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:30,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 42 states and 71 transitions. [2018-09-26 22:53:30,094 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2018-09-26 22:53:30,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-26 22:53:30,095 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:30,985 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 42 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:42,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:42,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 46 states and 83 transitions. [2018-09-26 22:53:42,525 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2018-09-26 22:53:42,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-26 22:53:42,527 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 56 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:58,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:58,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 48 states and 85 transitions. [2018-09-26 22:53:58,395 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2018-09-26 22:53:58,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-26 22:53:58,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 56 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:16,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 52 states and 98 transitions. [2018-09-26 22:54:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2018-09-26 22:54:16,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-26 22:54:16,581 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:38,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:38,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 54 states and 100 transitions. [2018-09-26 22:54:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2018-09-26 22:54:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-26 22:54:38,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:55:05,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:55:05,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 58 states and 114 transitions. [2018-09-26 22:55:05,527 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 114 transitions. [2018-09-26 22:55:05,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 22:55:05,529 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:55:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:55:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 90 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:55:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:55:36,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 60 states and 116 transitions. [2018-09-26 22:55:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 116 transitions. [2018-09-26 22:55:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-26 22:55:36,431 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:55:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:55:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 90 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 64 states and 131 transitions. [2018-09-26 22:56:13,204 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 131 transitions. [2018-09-26 22:56:13,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-26 22:56:13,205 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:21,219 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 110 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:55,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 66 states and 133 transitions. [2018-09-26 22:56:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2018-09-26 22:56:55,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-26 22:56:55,910 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 110 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown