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/ArrayInit02.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f-m [2018-10-04 15:02:33,089 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 15:02:33,091 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 15:02:33,109 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 15:02:33,109 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 15:02:33,110 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 15:02:33,112 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 15:02:33,114 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 15:02:33,116 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 15:02:33,117 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 15:02:33,118 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 15:02:33,118 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 15:02:33,127 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 15:02:33,128 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 15:02:33,131 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 15:02:33,133 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 15:02:33,134 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 15:02:33,136 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 15:02:33,140 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 15:02:33,144 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 15:02:33,146 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 15:02:33,147 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 15:02:33,152 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 15:02:33,152 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 15:02:33,152 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 15:02:33,154 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 15:02:33,154 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 15:02:33,156 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 15:02:33,156 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 15:02:33,160 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 15:02:33,161 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 15:02:33,161 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 15:02:33,161 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 15:02:33,162 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 15:02:33,163 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 15:02:33,165 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 15:02:33,166 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-10-04 15:02:33,192 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 15:02:33,192 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 15:02:33,194 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 15:02:33,194 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 15:02:33,195 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 15:02:33,195 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 15:02:33,195 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 15:02:33,196 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 15:02:33,196 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 15:02:33,196 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 15:02:33,196 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 15:02:33,196 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 15:02:33,196 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 15:02:33,197 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 15:02:33,197 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 15:02:33,197 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 15:02:33,197 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 15:02:33,197 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 15:02:33,198 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 15:02:33,198 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 15:02:33,198 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 15:02:33,198 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 15:02:33,199 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 15:02:33,199 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 15:02:33,199 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 15:02:33,199 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 15:02:33,199 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 15:02:33,200 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 15:02:33,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 15:02:33,200 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 15:02:33,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 15:02:33,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 15:02:33,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 15:02:33,291 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 15:02:33,291 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 15:02:33,292 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit02.bpl [2018-10-04 15:02:33,292 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit02.bpl' [2018-10-04 15:02:33,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 15:02:33,343 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 15:02:33,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 15:02:33,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 15:02:33,344 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 15:02:33,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:33,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:33,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 15:02:33,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 15:02:33,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 15:02:33,389 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 15:02:33,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:33,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:33,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:33,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:33,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:33,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:33,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:33,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 15:02:33,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 15:02:33,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 15:02:33,417 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 15:02:33,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 03:02:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 15:02:33,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-04 15:02:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 15:02:33,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 15:02:33,996 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 15:02:33,997 INFO L202 PluginConnector]: Adding new model ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 03:02:33 BoogieIcfgContainer [2018-10-04 15:02:33,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 15:02:33,998 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 15:02:33,999 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 15:02:34,024 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 15:02:34,024 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "ArrayInit02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 03:02:33" (1/1) ... [2018-10-04 15:02:34,047 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 15:02:34,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2018-10-04 15:02:34,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2018-10-04 15:02:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 15:02:34,103 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:34,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2018-10-04 15:02:34,459 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2018-10-04 15:02:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 15:02:34,459 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:34,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:36,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-10-04 15:02:36,369 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-10-04 15:02:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 15:02:36,370 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2018-10-04 15:02:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2018-10-04 15:02:37,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 15:02:37,328 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:37,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:38,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:38,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2018-10-04 15:02:38,806 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-10-04 15:02:38,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 15:02:38,806 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:38,967 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:40,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:40,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2018-10-04 15:02:40,563 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2018-10-04 15:02:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 15:02:40,564 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:42,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:42,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2018-10-04 15:02:42,751 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2018-10-04 15:02:42,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-04 15:02:42,752 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:42,938 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:44,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:44,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2018-10-04 15:02:44,657 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2018-10-04 15:02:44,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-04 15:02:44,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:45,012 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:46,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2018-10-04 15:02:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2018-10-04 15:02:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-04 15:02:46,606 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:49,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:49,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 58 transitions. [2018-10-04 15:02:49,092 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2018-10-04 15:02:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-04 15:02:49,094 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:51,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:51,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 40 states and 61 transitions. [2018-10-04 15:02:51,298 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 61 transitions. [2018-10-04 15:02:51,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-04 15:02:51,300 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 40 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:53,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 44 states and 72 transitions. [2018-10-04 15:02:53,663 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 72 transitions. [2018-10-04 15:02:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-04 15:02:53,665 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:02:56,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:02:56,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 47 states and 75 transitions. [2018-10-04 15:02:56,736 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 75 transitions. [2018-10-04 15:02:56,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-04 15:02:56,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:02:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:02:57,015 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:00,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:00,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 51 states and 87 transitions. [2018-10-04 15:03:00,215 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 87 transitions. [2018-10-04 15:03:00,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-04 15:03:00,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:05,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:05,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 54 states and 90 transitions. [2018-10-04 15:03:05,135 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 90 transitions. [2018-10-04 15:03:05,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-04 15:03:05,137 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:06,106 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 77 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:09,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:09,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 58 states and 103 transitions. [2018-10-04 15:03:09,489 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 103 transitions. [2018-10-04 15:03:09,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-04 15:03:09,491 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:10,259 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 61 states and 106 transitions. [2018-10-04 15:03:13,265 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 106 transitions. [2018-10-04 15:03:13,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-04 15:03:13,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 100 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:17,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:17,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 65 states and 120 transitions. [2018-10-04 15:03:17,385 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 120 transitions. [2018-10-04 15:03:17,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-04 15:03:17,387 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:21,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:21,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 68 states and 123 transitions. [2018-10-04 15:03:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 123 transitions. [2018-10-04 15:03:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-04 15:03:21,553 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:22,424 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 72 states and 138 transitions. [2018-10-04 15:03:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 138 transitions. [2018-10-04 15:03:26,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-04 15:03:26,351 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:30,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 75 states and 141 transitions. [2018-10-04 15:03:30,957 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 141 transitions. [2018-10-04 15:03:30,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-04 15:03:30,958 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 155 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:36,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 79 states and 157 transitions. [2018-10-04 15:03:36,285 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 157 transitions. [2018-10-04 15:03:36,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-04 15:03:36,287 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:37,209 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:41,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:41,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 82 states and 160 transitions. [2018-10-04 15:03:41,745 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 160 transitions. [2018-10-04 15:03:41,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-04 15:03:41,746 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 187 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:47,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:47,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 86 states and 177 transitions. [2018-10-04 15:03:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 177 transitions. [2018-10-04 15:03:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-04 15:03:47,657 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:03:53,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:03:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 89 states and 180 transitions. [2018-10-04 15:03:53,761 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 180 transitions. [2018-10-04 15:03:53,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-04 15:03:53,763 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:03:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:03:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 222 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:04:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:04:00,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 93 states and 198 transitions. [2018-10-04 15:04:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 198 transitions. [2018-10-04 15:04:00,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-04 15:04:00,816 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:04:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:04:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 0 proven. 313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:04:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:04:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 96 states and 201 transitions. [2018-10-04 15:04:09,371 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 201 transitions. [2018-10-04 15:04:09,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-04 15:04:09,372 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:04:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:04:10,016 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 260 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:04:17,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:04:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 100 states and 220 transitions. [2018-10-04 15:04:17,528 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 220 transitions. [2018-10-04 15:04:17,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-04 15:04:17,529 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:04:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:04:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:04:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:04:26,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 103 states and 223 transitions. [2018-10-04 15:04:26,113 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 223 transitions. [2018-10-04 15:04:26,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-04 15:04:26,114 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:04:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:04:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 301 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:04:34,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:04:34,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 107 states and 243 transitions. [2018-10-04 15:04:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 243 transitions. [2018-10-04 15:04:34,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-04 15:04:34,059 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:04:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:04:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 421 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:04:42,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:04:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 110 states and 246 transitions. [2018-10-04 15:04:42,415 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 246 transitions. [2018-10-04 15:04:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-04 15:04:42,416 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:04:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:04:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 345 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:04:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:04:51,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 114 states and 267 transitions. [2018-10-04 15:04:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 267 transitions. [2018-10-04 15:04:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-04 15:04:51,296 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:04:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:04:52,635 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 481 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:05:00,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:00,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 117 states and 270 transitions. [2018-10-04 15:05:00,403 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 270 transitions. [2018-10-04 15:05:00,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-04 15:05:00,404 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:01,177 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 392 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:05:10,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:10,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 121 states and 292 transitions. [2018-10-04 15:05:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 292 transitions. [2018-10-04 15:05:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-04 15:05:10,247 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 0 proven. 545 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:05:20,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:20,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 124 states and 295 transitions. [2018-10-04 15:05:20,382 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 295 transitions. [2018-10-04 15:05:20,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-04 15:05:20,383 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 442 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:05:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:31,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 128 states and 318 transitions. [2018-10-04 15:05:31,396 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 318 transitions. [2018-10-04 15:05:31,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-04 15:05:31,397 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:32,877 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 0 proven. 613 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:05:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 131 states and 321 transitions. [2018-10-04 15:05:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 321 transitions. [2018-10-04 15:05:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-04 15:05:42,427 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 495 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:05:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:05:54,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 135 states and 345 transitions. [2018-10-04 15:05:54,043 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 345 transitions. [2018-10-04 15:05:54,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-10-04 15:05:54,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:05:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:05:55,478 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 0 proven. 685 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:06:05,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:06:05,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 138 states and 348 transitions. [2018-10-04 15:06:05,490 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 348 transitions. [2018-10-04 15:06:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-04 15:06:05,491 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:06:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:06:06,679 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 551 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:06:18,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:06:18,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 142 states and 373 transitions. [2018-10-04 15:06:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 373 transitions. [2018-10-04 15:06:18,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-10-04 15:06:18,021 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:06:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:06:19,648 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 0 proven. 761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:06:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:06:33,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 145 states and 376 transitions. [2018-10-04 15:06:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 376 transitions. [2018-10-04 15:06:33,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-04 15:06:33,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:06:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:06:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 610 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 15:06:48,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 15:06:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 149 states and 402 transitions. [2018-10-04 15:06:48,329 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 402 transitions. [2018-10-04 15:06:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-04 15:06:48,330 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 15:06:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 15:06:50,228 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 841 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown