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/seq.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 23:01:40,804 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 23:01:40,806 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 23:01:40,820 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 23:01:40,821 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 23:01:40,822 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 23:01:40,824 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 23:01:40,826 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 23:01:40,828 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 23:01:40,829 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 23:01:40,830 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 23:01:40,833 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 23:01:40,834 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 23:01:40,838 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 23:01:40,839 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 23:01:40,840 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 23:01:40,846 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 23:01:40,851 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 23:01:40,853 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 23:01:40,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 23:01:40,860 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 23:01:40,862 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 23:01:40,867 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 23:01:40,868 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 23:01:40,868 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 23:01:40,871 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 23:01:40,872 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 23:01:40,873 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 23:01:40,875 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 23:01:40,877 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 23:01:40,877 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 23:01:40,879 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 23:01:40,879 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 23:01:40,879 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 23:01:40,881 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 23:01:40,882 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 23:01:40,882 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 23:01:40,914 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 23:01:40,914 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 23:01:40,915 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 23:01:40,915 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 23:01:40,916 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 23:01:40,916 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 23:01:40,917 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 23:01:40,917 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 23:01:40,917 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 23:01:40,917 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 23:01:40,917 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 23:01:40,918 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 23:01:40,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 23:01:40,918 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 23:01:40,918 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 23:01:40,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 23:01:40,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 23:01:40,919 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 23:01:40,919 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 23:01:40,919 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 23:01:40,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 23:01:40,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 23:01:40,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 23:01:40,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 23:01:40,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 23:01:40,920 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 23:01:40,920 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 23:01:40,921 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 23:01:40,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 23:01:40,921 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 23:01:40,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 23:01:40,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 23:01:40,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 23:01:40,986 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 23:01:40,986 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 23:01:40,987 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/seq.i_4.bpl [2018-09-26 23:01:40,987 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/seq.i_4.bpl' [2018-09-26 23:01:41,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 23:01:41,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 23:01:41,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 23:01:41,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 23:01:41,051 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 23:01:41,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 23:01:41,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 23:01:41,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 23:01:41,101 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 23:01:41,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 23:01:41,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 23:01:41,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 23:01:41,137 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 23:01:41,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:01:41" (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 23:01:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 23:01:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 23:01:41,576 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 23:01:41,577 INFO L202 PluginConnector]: Adding new model seq.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 11:01:41 BoogieIcfgContainer [2018-09-26 23:01:41,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 23:01:41,578 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 23:01:41,578 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 23:01:41,590 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 23:01:41,590 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "seq.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 11:01:41" (1/1) ... [2018-09-26 23:01:41,606 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 23:01:41,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:01:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-09-26 23:01:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-26 23:01:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 23:01:41,651 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:01:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:01:41,969 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 23:01:42,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:01:42,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-09-26 23:01:42,738 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-09-26 23:01:42,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 23:01:42,739 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:01:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:01:42,945 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 23:01:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:01:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 12 states and 19 transitions. [2018-09-26 23:01:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 19 transitions. [2018-09-26 23:01:45,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 23:01:45,308 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:01:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:01:45,470 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 23:01:48,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:01:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 16 states and 27 transitions. [2018-09-26 23:01:48,888 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 27 transitions. [2018-09-26 23:01:48,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 23:01:48,889 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:01:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:01:49,163 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 23:01:51,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:01:51,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-09-26 23:01:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-09-26 23:01:51,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 23:01:51,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:01:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:01:51,793 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 23:01:54,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:01:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2018-09-26 23:01:54,601 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-09-26 23:01:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 23:01:54,602 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:01:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:01:55,063 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 23:01:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:01:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-09-26 23:01:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-09-26 23:01:58,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 23:01:58,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:01:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:01:58,809 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 23:02:03,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:02:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 28 states and 44 transitions. [2018-09-26 23:02:03,914 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2018-09-26 23:02:03,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-26 23:02:03,916 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:02:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:02:04,763 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 23:02:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:02:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-09-26 23:02:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-09-26 23:02:09,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-26 23:02:09,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:02:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:02:10,269 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 23:02:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:02:17,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 34 states and 56 transitions. [2018-09-26 23:02:17,198 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2018-09-26 23:02:17,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-26 23:02:17,200 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:02:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:02:18,562 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 23:02:26,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:02:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 36 states and 58 transitions. [2018-09-26 23:02:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2018-09-26 23:02:26,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-26 23:02:26,510 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:02:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:02:27,294 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 23:02:37,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:02:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 40 states and 69 transitions. [2018-09-26 23:02:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2018-09-26 23:02:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-26 23:02:37,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:02:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:02:40,283 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 23:02:52,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:02:52,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 42 states and 71 transitions. [2018-09-26 23:02:52,021 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2018-09-26 23:02:52,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-26 23:02:52,022 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:02:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:02:53,305 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 23:03:09,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:03:09,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 46 states and 83 transitions. [2018-09-26 23:03:09,407 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2018-09-26 23:03:09,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-26 23:03:09,409 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:03:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:03:12,913 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 23:03:30,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:03:30,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 48 states and 85 transitions. [2018-09-26 23:03:30,287 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2018-09-26 23:03:30,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-26 23:03:30,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:03:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:03:32,173 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 23:03:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:03:55,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 52 states and 98 transitions. [2018-09-26 23:03:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2018-09-26 23:03:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-26 23:03:55,043 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:03:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:03:59,836 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 23:04:23,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:04:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 54 states and 100 transitions. [2018-09-26 23:04:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2018-09-26 23:04:23,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-26 23:04:23,347 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:04:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:04:25,594 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 23:04:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:04:57,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 58 states and 114 transitions. [2018-09-26 23:04:57,672 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 114 transitions. [2018-09-26 23:04:57,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 23:04:57,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:04:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:05:04,984 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 23:05:37,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:05:37,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 60 states and 116 transitions. [2018-09-26 23:05:37,979 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 116 transitions. [2018-09-26 23:05:37,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-26 23:05:37,980 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:05:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:05:41,341 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 90 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown