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 0.1.23-1cc990c [2018-09-30 21:49:19,793 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 21:49:19,795 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 21:49:19,809 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 21:49:19,811 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 21:49:19,813 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 21:49:19,814 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 21:49:19,816 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 21:49:19,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 21:49:19,819 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 21:49:19,820 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 21:49:19,820 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 21:49:19,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 21:49:19,822 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 21:49:19,824 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 21:49:19,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 21:49:19,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 21:49:19,827 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 21:49:19,829 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 21:49:19,831 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 21:49:19,832 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 21:49:19,833 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 21:49:19,835 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 21:49:19,835 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 21:49:19,836 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 21:49:19,837 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 21:49:19,837 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 21:49:19,838 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 21:49:19,839 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 21:49:19,840 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 21:49:19,840 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 21:49:19,841 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 21:49:19,841 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 21:49:19,841 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 21:49:19,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 21:49:19,843 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 21:49:19,843 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 [2018-09-30 21:49:19,866 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 21:49:19,867 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 21:49:19,868 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 21:49:19,868 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 21:49:19,869 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 21:49:19,869 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 21:49:19,870 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 21:49:19,870 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 21:49:19,870 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 21:49:19,870 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 21:49:19,871 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 21:49:19,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 21:49:19,872 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 21:49:19,872 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 21:49:19,872 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 21:49:19,872 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 21:49:19,873 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 21:49:19,873 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 21:49:19,873 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 21:49:19,873 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 21:49:19,874 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 21:49:19,875 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 21:49:19,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:49:19,875 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 21:49:19,875 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 21:49:19,875 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 21:49:19,876 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 21:49:19,876 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 21:49:19,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 21:49:19,876 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 21:49:19,940 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 21:49:19,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 21:49:19,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 21:49:19,962 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 21:49:19,962 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 21:49:19,963 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl [2018-09-30 21:49:19,963 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl' [2018-09-30 21:49:20,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 21:49:20,015 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 21:49:20,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 21:49:20,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 21:49:20,016 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 21:49:20,036 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 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,048 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 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 21:49:20,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 21:49:20,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 21:49:20,055 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 21:49:20,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 21:49:20,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 21:49:20,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 21:49:20,077 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 21:49:20,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:49:20" (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 [2018-09-30 21:49:20,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 21:49:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 21:49:20,491 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 21:49:20,492 INFO L202 PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:49:20 BoogieIcfgContainer [2018-09-30 21:49:20,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 21:49:20,493 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 21:49:20,493 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 21:49:20,508 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 21:49:20,508 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:49:20" (1/1) ... [2018-09-30 21:49:20,527 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 21:49:20,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-09-30 21:49:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-09-30 21:49:20,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 21:49:20,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:21,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-09-30 21:49:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-09-30 21:49:21,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 21:49:21,072 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:21,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:22,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:22,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2018-09-30 21:49:22,117 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2018-09-30 21:49:22,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-30 21:49:22,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2018-09-30 21:49:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2018-09-30 21:49:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-30 21:49:23,130 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:23,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2018-09-30 21:49:23,590 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2018-09-30 21:49:23,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 21:49:23,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:24,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:24,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2018-09-30 21:49:24,323 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2018-09-30 21:49:24,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 21:49:24,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:24,413 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:24,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2018-09-30 21:49:24,767 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2018-09-30 21:49:24,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-30 21:49:24,769 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:25,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 23 states and 38 transitions. [2018-09-30 21:49:25,639 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2018-09-30 21:49:25,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-30 21:49:25,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 25 states and 42 transitions. [2018-09-30 21:49:26,344 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2018-09-30 21:49:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-30 21:49:26,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:27,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2018-09-30 21:49:27,154 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2018-09-30 21:49:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-30 21:49:27,155 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:27,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2018-09-30 21:49:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2018-09-30 21:49:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-30 21:49:27,845 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:49:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:28,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 53 transitions. [2018-09-30 21:49:28,573 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2018-09-30 21:49:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 21:49:28,574 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-09-30 21:49:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:31,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 55 states and 88 transitions. [2018-09-30 21:49:31,448 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 88 transitions. [2018-09-30 21:49:31,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-30 21:49:31,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-30 21:49:35,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 53 states and 66 transitions. [2018-09-30 21:49:35,122 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2018-09-30 21:49:35,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-30 21:49:35,125 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:35,223 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-09-30 21:49:38,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:38,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 77 states and 101 transitions. [2018-09-30 21:49:38,767 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2018-09-30 21:49:38,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-30 21:49:38,768 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2018-09-30 21:49:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:43,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 77 states and 91 transitions. [2018-09-30 21:49:43,012 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2018-09-30 21:49:43,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-09-30 21:49:43,014 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:43,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 0 proven. 738 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-30 21:49:48,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:48,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 101 states and 126 transitions. [2018-09-30 21:49:48,134 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2018-09-30 21:49:48,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-30 21:49:48,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 8 proven. 66 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2018-09-30 21:49:53,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:53,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 101 states and 116 transitions. [2018-09-30 21:49:53,259 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2018-09-30 21:49:53,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-09-30 21:49:53,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 1472 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2018-09-30 21:49:59,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:49:59,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 125 states and 151 transitions. [2018-09-30 21:49:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 151 transitions. [2018-09-30 21:49:59,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-09-30 21:49:59,234 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:49:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:49:59,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2010 backedges. 10 proven. 88 refuted. 0 times theorem prover too weak. 1912 trivial. 0 not checked. [2018-09-30 21:50:06,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:50:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 125 states and 141 transitions. [2018-09-30 21:50:06,201 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 141 transitions. [2018-09-30 21:50:06,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-09-30 21:50:06,203 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:50:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:50:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3000 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2018-09-30 21:50:14,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:50:14,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 149 states and 176 transitions. [2018-09-30 21:50:14,387 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 176 transitions. [2018-09-30 21:50:14,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-30 21:50:14,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:50:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:50:14,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3122 backedges. 12 proven. 110 refuted. 0 times theorem prover too weak. 3000 trivial. 0 not checked. [2018-09-30 21:50:22,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:50:22,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 149 states and 166 transitions. [2018-09-30 21:50:22,627 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 166 transitions. [2018-09-30 21:50:22,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-09-30 21:50:22,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:50:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:50:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 3672 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2018-09-30 21:50:32,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:50:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 173 states and 201 transitions. [2018-09-30 21:50:32,061 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 201 transitions. [2018-09-30 21:50:32,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-09-30 21:50:32,062 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:50:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:50:32,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4478 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 4332 trivial. 0 not checked. [2018-09-30 21:50:43,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:50:43,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 173 states and 191 transitions. [2018-09-30 21:50:43,042 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 191 transitions. [2018-09-30 21:50:43,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-09-30 21:50:43,044 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:50:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:50:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5908 backedges. 0 proven. 5138 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2018-09-30 21:50:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:50:54,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 197 states and 226 transitions. [2018-09-30 21:50:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 226 transitions. [2018-09-30 21:50:54,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-09-30 21:50:54,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:50:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:50:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6078 backedges. 16 proven. 154 refuted. 0 times theorem prover too weak. 5908 trivial. 0 not checked. [2018-09-30 21:51:06,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:51:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 197 states and 216 transitions. [2018-09-30 21:51:06,838 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 216 transitions. [2018-09-30 21:51:06,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-09-30 21:51:06,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:51:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:51:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 7728 backedges. 0 proven. 6848 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2018-09-30 21:51:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:51:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 221 states and 251 transitions. [2018-09-30 21:51:20,708 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 251 transitions. [2018-09-30 21:51:20,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-09-30 21:51:20,709 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:51:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:51:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 7922 backedges. 18 proven. 176 refuted. 0 times theorem prover too weak. 7728 trivial. 0 not checked. [2018-09-30 21:51:36,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:51:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 221 states and 241 transitions. [2018-09-30 21:51:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 241 transitions. [2018-09-30 21:51:36,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-09-30 21:51:36,263 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:51:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:51:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-09-30 21:51:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:51:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 245 states and 265 transitions. [2018-09-30 21:51:52,828 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2018-09-30 21:51:52,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-30 21:51:52,830 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:51:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:51:52,995 INFO L134 CoverageAnalysis]: Checked inductivity of 10010 backedges. 20 proven. 198 refuted. 0 times theorem prover too weak. 9792 trivial. 0 not checked. [2018-09-30 21:52:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:52:14,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 245 states and 255 transitions. [2018-09-30 21:52:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 255 transitions. [2018-09-30 21:52:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-09-30 21:52:14,462 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:52:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:53:17,253 INFO L134 CoverageAnalysis]: Checked inductivity of 12100 backedges. 12082 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown