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/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 23:05:56,042 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 23:05:56,044 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 23:05:56,064 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 23:05:56,064 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 23:05:56,065 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 23:05:56,067 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 23:05:56,069 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 23:05:56,072 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 23:05:56,073 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 23:05:56,075 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 23:05:56,076 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 23:05:56,077 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 23:05:56,079 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 23:05:56,080 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 23:05:56,081 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 23:05:56,090 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 23:05:56,095 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 23:05:56,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 23:05:56,103 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 23:05:56,104 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 23:05:56,106 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 23:05:56,112 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 23:05:56,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 23:05:56,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 23:05:56,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 23:05:56,116 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 23:05:56,118 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 23:05:56,121 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 23:05:56,122 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 23:05:56,122 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 23:05:56,123 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 23:05:56,123 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 23:05:56,123 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 23:05:56,124 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 23:05:56,126 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 23:05:56,126 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 23:05:56,156 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 23:05:56,157 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 23:05:56,159 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 23:05:56,159 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 23:05:56,159 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 23:05:56,160 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 23:05:56,160 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 23:05:56,160 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 23:05:56,160 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 23:05:56,160 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 23:05:56,161 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 23:05:56,161 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 23:05:56,161 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 23:05:56,161 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 23:05:56,162 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 23:05:56,163 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 23:05:56,163 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 23:05:56,163 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 23:05:56,163 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 23:05:56,163 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 23:05:56,164 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 23:05:56,164 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 23:05:56,164 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 23:05:56,164 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 23:05:56,166 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 23:05:56,166 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 23:05:56,166 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 23:05:56,166 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 23:05:56,167 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 23:05:56,167 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 23:05:56,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 23:05:56,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 23:05:56,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 23:05:56,239 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 23:05:56,240 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 23:05:56,241 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl [2018-09-26 23:05:56,241 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl' [2018-09-26 23:05:56,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 23:05:56,299 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 23:05:56,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 23:05:56,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 23:05:56,301 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 23:05:56,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (1/1) ... [2018-09-26 23:05:56,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (1/1) ... [2018-09-26 23:05:56,342 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 23:05:56,342 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 23:05:56,342 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 23:05:56,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 23:05:56,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 23:05:56,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 23:05:56,346 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 23:05:56,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (1/1) ... [2018-09-26 23:05:56,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (1/1) ... [2018-09-26 23:05:56,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (1/1) ... [2018-09-26 23:05:56,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (1/1) ... [2018-09-26 23:05:56,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (1/1) ... [2018-09-26 23:05:56,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (1/1) ... [2018-09-26 23:05:56,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (1/1) ... [2018-09-26 23:05:56,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 23:05:56,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 23:05:56,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 23:05:56,376 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 23:05:56,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 11:05:56" (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 23:05:56,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-26 23:05:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-26 23:05:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-26 23:05:57,000 INFO L343 CfgBuilder]: Using library mode [2018-09-26 23:05:57,001 INFO L202 PluginConnector]: Adding new model Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 11:05:57 BoogieIcfgContainer [2018-09-26 23:05:57,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 23:05:57,002 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 23:05:57,002 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 23:05:57,014 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 23:05:57,015 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 11:05:57" (1/1) ... [2018-09-26 23:05:57,031 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 23:05:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:05:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-09-26 23:05:57,069 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-26 23:05:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-26 23:05:57,072 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:05:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:05:57,206 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 23:05:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:05:57,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-09-26 23:05:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-09-26 23:05:57,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 23:05:57,473 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:05:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:05:57,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:05:58,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:05:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 8 states and 14 transitions. [2018-09-26 23:05:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 14 transitions. [2018-09-26 23:05:58,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 23:05:58,819 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:05:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:05:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:00,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-09-26 23:06:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-09-26 23:06:00,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 23:06:00,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:01,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:01,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 10 states and 18 transitions. [2018-09-26 23:06:01,412 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 18 transitions. [2018-09-26 23:06:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 23:06:01,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:02,277 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:04,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:04,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 11 states and 20 transitions. [2018-09-26 23:06:04,068 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 20 transitions. [2018-09-26 23:06:04,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 23:06:04,069 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:05,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2018-09-26 23:06:05,932 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2018-09-26 23:06:05,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 23:06:05,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 13 states and 24 transitions. [2018-09-26 23:06:08,307 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 24 transitions. [2018-09-26 23:06:08,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 23:06:08,308 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:08,687 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:10,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:10,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 14 states and 26 transitions. [2018-09-26 23:06:10,347 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 26 transitions. [2018-09-26 23:06:10,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 23:06:10,348 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:12,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:12,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 15 states and 28 transitions. [2018-09-26 23:06:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 28 transitions. [2018-09-26 23:06:12,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 23:06:12,845 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:15,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:15,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 16 states and 30 transitions. [2018-09-26 23:06:15,903 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 30 transitions. [2018-09-26 23:06:15,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-26 23:06:15,904 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:19,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:19,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 17 states and 32 transitions. [2018-09-26 23:06:19,846 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 32 transitions. [2018-09-26 23:06:19,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 23:06:19,847 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:25,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:25,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 18 states and 34 transitions. [2018-09-26 23:06:25,137 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 34 transitions. [2018-09-26 23:06:25,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-26 23:06:25,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:26,731 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:31,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:31,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 19 states and 36 transitions. [2018-09-26 23:06:31,568 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 36 transitions. [2018-09-26 23:06:31,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 23:06:31,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 20 states and 38 transitions. [2018-09-26 23:06:39,125 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 38 transitions. [2018-09-26 23:06:39,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-26 23:06:39,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:06:48,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:06:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 21 states and 40 transitions. [2018-09-26 23:06:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 40 transitions. [2018-09-26 23:06:48,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 23:06:48,802 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:06:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:06:51,121 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:07:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:07:00,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 22 states and 42 transitions. [2018-09-26 23:07:00,022 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 42 transitions. [2018-09-26 23:07:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-26 23:07:00,023 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:07:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:07:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:07:13,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:07:13,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 23 states and 44 transitions. [2018-09-26 23:07:13,786 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 44 transitions. [2018-09-26 23:07:13,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-26 23:07:13,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:07:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:07:17,293 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:07:29,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:07:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 24 states and 46 transitions. [2018-09-26 23:07:29,978 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 46 transitions. [2018-09-26 23:07:29,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-26 23:07:29,979 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:07:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:07:34,334 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:07:49,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:07:49,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 25 states and 48 transitions. [2018-09-26 23:07:49,527 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 48 transitions. [2018-09-26 23:07:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-26 23:07:49,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:07:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:07:53,797 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:08:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:08:12,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 26 states and 50 transitions. [2018-09-26 23:08:12,612 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 50 transitions. [2018-09-26 23:08:12,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-26 23:08:12,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:08:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:08:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:08:39,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:08:39,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 27 states and 52 transitions. [2018-09-26 23:08:39,590 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 52 transitions. [2018-09-26 23:08:39,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-26 23:08:39,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:08:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:08:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:09:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:09:10,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 28 states and 54 transitions. [2018-09-26 23:09:10,550 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 54 transitions. [2018-09-26 23:09:10,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-26 23:09:10,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:09:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:09:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:09:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:09:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 29 states and 56 transitions. [2018-09-26 23:09:47,024 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 56 transitions. [2018-09-26 23:09:47,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-26 23:09:47,025 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:09:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:09:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 23:10:28,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 23:10:28,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 30 states and 58 transitions. [2018-09-26 23:10:28,398 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 58 transitions. [2018-09-26 23:10:28,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-26 23:10:28,399 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 23:10:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-09-26 23:10:33,515 ERROR L611 CodeCheckObserver]: First Tracecheck threw exception Timeout or Toolchain cancelled by user [2018-09-26 23:10:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 23:10:33,547 INFO L273 TraceCheckSpWp]: Computing forward predicates... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown