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/nested.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 13:48:13,976 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 13:48:13,978 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 13:48:13,990 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 13:48:13,991 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 13:48:13,992 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 13:48:13,993 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 13:48:13,995 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 13:48:13,996 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 13:48:13,997 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 13:48:13,998 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 13:48:13,998 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 13:48:13,999 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 13:48:14,000 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 13:48:14,001 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 13:48:14,002 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 13:48:14,003 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 13:48:14,006 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 13:48:14,008 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 13:48:14,012 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 13:48:14,013 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 13:48:14,014 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 13:48:14,019 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 13:48:14,019 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 13:48:14,019 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 13:48:14,020 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 13:48:14,021 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 13:48:14,021 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 13:48:14,022 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 13:48:14,023 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 13:48:14,023 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 13:48:14,024 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 13:48:14,024 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 13:48:14,025 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 13:48:14,025 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 13:48:14,026 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 13:48:14,026 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 [2018-10-04 13:48:14,045 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 13:48:14,046 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 13:48:14,049 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 13:48:14,049 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 13:48:14,049 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 13:48:14,050 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 13:48:14,050 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 13:48:14,050 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 13:48:14,050 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 13:48:14,050 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 13:48:14,051 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 13:48:14,051 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 13:48:14,051 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 13:48:14,051 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 13:48:14,051 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 13:48:14,052 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 13:48:14,052 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 13:48:14,052 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 13:48:14,052 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 13:48:14,052 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 13:48:14,053 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 13:48:14,053 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 13:48:14,053 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 13:48:14,053 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 13:48:14,053 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 13:48:14,054 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 13:48:14,054 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 13:48:14,054 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 13:48:14,054 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 13:48:14,054 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 13:48:14,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 13:48:14,112 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 13:48:14,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 13:48:14,121 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 13:48:14,121 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 13:48:14,122 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl [2018-10-04 13:48:14,122 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl' [2018-10-04 13:48:14,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 13:48:14,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 13:48:14,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 13:48:14,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 13:48:14,185 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 13:48:14,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 13:48:14,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 13:48:14,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 13:48:14,229 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 13:48:14,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 13:48:14,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 13:48:14,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 13:48:14,253 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 13:48:14,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:48:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 13:48:14,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 13:48:14,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 13:48:14,595 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 13:48:14,595 INFO L202 PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:48:14 BoogieIcfgContainer [2018-10-04 13:48:14,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 13:48:14,597 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 13:48:14,597 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 13:48:14,609 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 13:48:14,609 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:48:14" (1/1) ... [2018-10-04 13:48:14,627 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 13:48:14,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-10-04 13:48:14,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-10-04 13:48:14,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 13:48:14,665 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:15,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-10-04 13:48:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-10-04 13:48:15,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 13:48:15,092 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2018-10-04 13:48:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2018-10-04 13:48:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 13:48:15,942 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:16,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2018-10-04 13:48:16,877 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2018-10-04 13:48:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 13:48:16,878 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:17,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:17,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2018-10-04 13:48:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2018-10-04 13:48:17,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 13:48:17,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:17,407 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:17,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2018-10-04 13:48:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2018-10-04 13:48:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-04 13:48:17,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:18,093 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:18,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2018-10-04 13:48:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2018-10-04 13:48:18,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-04 13:48:18,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:18,512 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:19,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:19,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 23 states and 38 transitions. [2018-10-04 13:48:19,069 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2018-10-04 13:48:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-04 13:48:19,071 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:19,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 25 states and 42 transitions. [2018-10-04 13:48:19,845 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2018-10-04 13:48:19,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-04 13:48:19,847 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:20,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2018-10-04 13:48:20,556 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2018-10-04 13:48:20,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-04 13:48:20,557 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:21,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:21,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2018-10-04 13:48:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2018-10-04 13:48:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-04 13:48:21,072 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:21,177 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:48:21,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:21,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 53 transitions. [2018-10-04 13:48:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2018-10-04 13:48:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-04 13:48:21,595 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:21,673 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-10-04 13:48:24,427 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 25 new depth: 22 [2018-10-04 13:48:24,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 55 states and 88 transitions. [2018-10-04 13:48:24,926 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 88 transitions. [2018-10-04 13:48:24,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-04 13:48:24,928 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-10-04 13:48:27,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 53 states and 66 transitions. [2018-10-04 13:48:27,442 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2018-10-04 13:48:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-04 13:48:27,445 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-10-04 13:48:31,653 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 42 new depth: 41 [2018-10-04 13:48:33,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 77 states and 101 transitions. [2018-10-04 13:48:33,512 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2018-10-04 13:48:33,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-10-04 13:48:33,515 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2018-10-04 13:48:37,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:37,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 77 states and 91 transitions. [2018-10-04 13:48:37,502 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2018-10-04 13:48:37,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-04 13:48:37,504 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 0 proven. 738 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-10-04 13:48:40,686 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 60 new depth: 58 [2018-10-04 13:48:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:43,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 101 states and 126 transitions. [2018-10-04 13:48:43,408 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2018-10-04 13:48:43,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-04 13:48:43,411 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 8 proven. 66 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2018-10-04 13:48:48,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 101 states and 116 transitions. [2018-10-04 13:48:48,237 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2018-10-04 13:48:48,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-04 13:48:48,238 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:48,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 1472 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2018-10-04 13:48:50,907 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 80 new depth: 78 [2018-10-04 13:48:55,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:48:55,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 125 states and 151 transitions. [2018-10-04 13:48:55,514 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 151 transitions. [2018-10-04 13:48:55,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-04 13:48:55,515 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:48:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:48:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2010 backedges. 10 proven. 88 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2018-10-04 13:49:01,760 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 99 new depth: 98 [2018-10-04 13:49:03,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:49:03,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 125 states and 141 transitions. [2018-10-04 13:49:03,100 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 141 transitions. [2018-10-04 13:49:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-04 13:49:03,101 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:49:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:49:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3000 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2018-10-04 13:49:10,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:49:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 149 states and 176 transitions. [2018-10-04 13:49:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 176 transitions. [2018-10-04 13:49:10,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-04 13:49:10,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:49:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:49:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 12 proven. 110 refuted. 0 times theorem prover too weak. 3000 trivial. 0 not checked. [2018-10-04 13:49:16,611 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 119 new depth: 118 [2018-10-04 13:49:19,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:49:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 149 states and 166 transitions. [2018-10-04 13:49:19,054 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 166 transitions. [2018-10-04 13:49:19,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-04 13:49:19,055 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:49:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:49:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 3672 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2018-10-04 13:49:27,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:49:27,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 173 states and 201 transitions. [2018-10-04 13:49:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 201 transitions. [2018-10-04 13:49:27,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-04 13:49:27,348 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:49:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:49:27,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4478 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 4332 trivial. 0 not checked. [2018-10-04 13:49:35,068 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 142 new depth: 141 [2018-10-04 13:49:37,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:49:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 173 states and 191 transitions. [2018-10-04 13:49:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 191 transitions. [2018-10-04 13:49:37,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-04 13:49:37,660 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:49:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:49:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 5908 backedges. 0 proven. 5138 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2018-10-04 13:49:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:49:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 197 states and 226 transitions. [2018-10-04 13:49:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 226 transitions. [2018-10-04 13:49:48,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-04 13:49:48,089 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:49:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:49:48,237 INFO L134 CoverageAnalysis]: Checked inductivity of 6078 backedges. 16 proven. 154 refuted. 0 times theorem prover too weak. 5908 trivial. 0 not checked. [2018-10-04 13:49:57,563 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 164 new depth: 164 [2018-10-04 13:50:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:50:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 197 states and 216 transitions. [2018-10-04 13:50:00,514 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 216 transitions. [2018-10-04 13:50:00,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-10-04 13:50:00,515 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:50:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:50:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7728 backedges. 0 proven. 6848 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2018-10-04 13:50:12,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:50:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 221 states and 251 transitions. [2018-10-04 13:50:12,647 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 251 transitions. [2018-10-04 13:50:12,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-04 13:50:12,648 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:50:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:50:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 7922 backedges. 18 proven. 176 refuted. 0 times theorem prover too weak. 7728 trivial. 0 not checked. [2018-10-04 13:50:24,547 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 187 new depth: 186 [2018-10-04 13:50:27,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:50:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 221 states and 241 transitions. [2018-10-04 13:50:27,192 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 241 transitions. [2018-10-04 13:50:27,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-04 13:50:27,193 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:50:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:50:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-10-04 13:50:40,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:50:40,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 245 states and 265 transitions. [2018-10-04 13:50:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2018-10-04 13:50:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-04 13:50:40,879 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:50:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:50:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 10010 backedges. 20 proven. 198 refuted. 0 times theorem prover too weak. 9792 trivial. 0 not checked. [2018-10-04 13:50:58,171 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 209 new depth: 208 [2018-10-04 13:51:00,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:51:00,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 245 states and 255 transitions. [2018-10-04 13:51:00,774 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 255 transitions. [2018-10-04 13:51:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-10-04 13:51:00,776 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:51:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:51:08,302 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 231 new depth: 210 [2018-10-04 13:51:16,083 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 233 new depth: 210 [2018-10-04 13:51:24,247 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 233 new depth: 210 [2018-10-04 13:51:32,694 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 233 new depth: 210 [2018-10-04 13:51:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12100 backedges. 12082 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-04 13:51:45,528 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 236 new depth: 215 [2018-10-04 13:52:06,511 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 240 new depth: 228 [2018-10-04 13:52:28,931 INFO L252 BPredicateUnifier]: --------PredicateTrie is restructured: old depths: 253 new depth: 242 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown