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/real-life/threadpooling_product_WithProcedures.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b2fde6a [2018-09-28 11:26:21,802 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-28 11:26:21,804 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-28 11:26:21,815 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-28 11:26:21,816 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-28 11:26:21,817 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-28 11:26:21,818 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-28 11:26:21,820 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-28 11:26:21,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-28 11:26:21,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-28 11:26:21,823 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-28 11:26:21,823 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-28 11:26:21,824 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-28 11:26:21,825 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-28 11:26:21,826 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-28 11:26:21,827 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-28 11:26:21,828 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-28 11:26:21,830 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-28 11:26:21,832 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-28 11:26:21,833 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-28 11:26:21,834 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-28 11:26:21,836 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-28 11:26:21,838 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-28 11:26:21,838 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-28 11:26:21,839 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-28 11:26:21,840 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-28 11:26:21,840 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-28 11:26:21,841 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-28 11:26:21,842 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-28 11:26:21,843 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-28 11:26:21,844 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-28 11:26:21,844 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-28 11:26:21,845 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-28 11:26:21,845 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-28 11:26:21,846 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-28 11:26:21,847 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-28 11:26:21,847 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 [2018-09-28 11:26:21,862 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-28 11:26:21,862 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-28 11:26:21,863 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-28 11:26:21,863 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-28 11:26:21,864 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-28 11:26:21,864 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-28 11:26:21,865 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-28 11:26:21,865 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-28 11:26:21,865 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-28 11:26:21,865 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-28 11:26:21,865 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-28 11:26:21,866 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-28 11:26:21,866 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-28 11:26:21,866 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-28 11:26:21,866 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-28 11:26:21,866 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-28 11:26:21,866 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-28 11:26:21,867 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-28 11:26:21,867 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-28 11:26:21,867 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-28 11:26:21,867 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-28 11:26:21,868 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-28 11:26:21,868 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-28 11:26:21,868 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-28 11:26:21,868 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-28 11:26:21,868 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-28 11:26:21,869 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-28 11:26:21,869 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-28 11:26:21,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-28 11:26:21,869 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-28 11:26:21,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-28 11:26:21,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-28 11:26:21,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-28 11:26:21,942 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-28 11:26:21,942 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-28 11:26:21,943 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product_WithProcedures.bpl [2018-09-28 11:26:21,944 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_product_WithProcedures.bpl' [2018-09-28 11:26:21,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-28 11:26:21,994 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-28 11:26:21,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-28 11:26:21,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-28 11:26:21,995 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-28 11:26:22,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (1/1) ... [2018-09-28 11:26:22,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (1/1) ... [2018-09-28 11:26:22,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-28 11:26:22,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-28 11:26:22,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-28 11:26:22,037 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-28 11:26:22,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (1/1) ... [2018-09-28 11:26:22,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (1/1) ... [2018-09-28 11:26:22,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (1/1) ... [2018-09-28 11:26:22,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (1/1) ... [2018-09-28 11:26:22,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (1/1) ... [2018-09-28 11:26:22,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (1/1) ... [2018-09-28 11:26:22,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (1/1) ... [2018-09-28 11:26:22,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-28 11:26:22,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-28 11:26:22,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-28 11:26:22,061 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-28 11:26:22,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:26:21" (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 [2018-09-28 11:26:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure l1l0 [2018-09-28 11:26:22,135 INFO L138 BoogieDeclarations]: Found implementation of procedure l1l0 [2018-09-28 11:26:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure l0l1 [2018-09-28 11:26:22,136 INFO L138 BoogieDeclarations]: Found implementation of procedure l0l1 [2018-09-28 11:26:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure l0l0 [2018-09-28 11:26:22,136 INFO L138 BoogieDeclarations]: Found implementation of procedure l0l0 [2018-09-28 11:26:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-28 11:26:22,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-28 11:26:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure l1l1 [2018-09-28 11:26:22,137 INFO L138 BoogieDeclarations]: Found implementation of procedure l1l1 [2018-09-28 11:26:22,729 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-28 11:26:22,729 INFO L202 PluginConnector]: Adding new model threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:26:22 BoogieIcfgContainer [2018-09-28 11:26:22,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-28 11:26:22,730 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-28 11:26:22,731 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-28 11:26:22,742 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-28 11:26:22,743 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "threadpooling_product_WithProcedures.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:26:22" (1/1) ... [2018-09-28 11:26:22,757 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 11:26:22,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:22,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 50 transitions. [2018-09-28 11:26:22,805 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2018-09-28 11:26:22,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-28 11:26:22,807 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:23,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 43 states and 64 transitions. [2018-09-28 11:26:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2018-09-28 11:26:24,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-28 11:26:24,059 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:24,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:25,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 48 states and 79 transitions. [2018-09-28 11:26:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 79 transitions. [2018-09-28 11:26:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:25,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:26,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:26,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 56 states and 104 transitions. [2018-09-28 11:26:26,727 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 104 transitions. [2018-09-28 11:26:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:26,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:26,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 60 states and 113 transitions. [2018-09-28 11:26:27,427 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 113 transitions. [2018-09-28 11:26:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:27,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:27,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-28 11:26:27,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 61 states and 114 transitions. [2018-09-28 11:26:27,891 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 114 transitions. [2018-09-28 11:26:27,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:27,893 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:27,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 62 states and 118 transitions. [2018-09-28 11:26:28,285 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 118 transitions. [2018-09-28 11:26:28,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:28,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:28,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:29,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:29,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 65 states and 132 transitions. [2018-09-28 11:26:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 132 transitions. [2018-09-28 11:26:29,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:29,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:29,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:30,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 67 states and 141 transitions. [2018-09-28 11:26:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 141 transitions. [2018-09-28 11:26:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:30,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 69 states and 147 transitions. [2018-09-28 11:26:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 147 transitions. [2018-09-28 11:26:32,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:32,069 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:32,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-28 11:26:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 71 states and 149 transitions. [2018-09-28 11:26:32,626 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 149 transitions. [2018-09-28 11:26:32,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:32,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:32,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:32,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:32,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 72 states and 149 transitions. [2018-09-28 11:26:32,909 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 149 transitions. [2018-09-28 11:26:32,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:26:32,911 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:33,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:33,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:33,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 76 states and 158 transitions. [2018-09-28 11:26:33,733 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 158 transitions. [2018-09-28 11:26:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-28 11:26:33,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:34,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:36,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:36,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 83 states and 181 transitions. [2018-09-28 11:26:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 181 transitions. [2018-09-28 11:26:36,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-28 11:26:36,710 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:39,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 90 states and 205 transitions. [2018-09-28 11:26:39,092 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 205 transitions. [2018-09-28 11:26:39,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-28 11:26:39,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:39,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:42,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:42,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 96 states and 226 transitions. [2018-09-28 11:26:42,769 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 226 transitions. [2018-09-28 11:26:42,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-28 11:26:42,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:45,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:45,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 99 states and 240 transitions. [2018-09-28 11:26:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 240 transitions. [2018-09-28 11:26:45,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-28 11:26:45,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:46,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:46,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 100 states and 243 transitions. [2018-09-28 11:26:46,988 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 243 transitions. [2018-09-28 11:26:46,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-28 11:26:46,991 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:47,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:48,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 102 states and 249 transitions. [2018-09-28 11:26:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 249 transitions. [2018-09-28 11:26:48,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-28 11:26:48,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:49,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 104 states and 255 transitions. [2018-09-28 11:26:49,839 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 255 transitions. [2018-09-28 11:26:49,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-28 11:26:49,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:50,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:51,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 108 states and 269 transitions. [2018-09-28 11:26:51,843 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 269 transitions. [2018-09-28 11:26:51,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:26:51,845 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:52,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:26:56,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:26:56,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 115 states and 293 transitions. [2018-09-28 11:26:56,694 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 293 transitions. [2018-09-28 11:26:56,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:26:56,696 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:26:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:26:56,887 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:00,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:00,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 120 states and 309 transitions. [2018-09-28 11:27:00,120 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 309 transitions. [2018-09-28 11:27:00,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:00,123 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:01,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:01,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 121 states and 310 transitions. [2018-09-28 11:27:01,310 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 310 transitions. [2018-09-28 11:27:01,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:01,312 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 128 states and 333 transitions. [2018-09-28 11:27:05,659 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 333 transitions. [2018-09-28 11:27:05,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:05,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:13,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 136 states and 353 transitions. [2018-09-28 11:27:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 353 transitions. [2018-09-28 11:27:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:13,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:13,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 137 states and 354 transitions. [2018-09-28 11:27:14,220 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 354 transitions. [2018-09-28 11:27:14,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:14,222 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:15,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:15,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 140 states and 359 transitions. [2018-09-28 11:27:15,733 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 359 transitions. [2018-09-28 11:27:15,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:15,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:15,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:19,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:19,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 146 states and 374 transitions. [2018-09-28 11:27:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 374 transitions. [2018-09-28 11:27:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:19,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:20,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:20,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 147 states and 374 transitions. [2018-09-28 11:27:20,291 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 374 transitions. [2018-09-28 11:27:20,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:20,293 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:20,591 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-28 11:27:21,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 148 states and 377 transitions. [2018-09-28 11:27:21,185 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2018-09-28 11:27:21,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:21,187 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:27,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 154 states and 395 transitions. [2018-09-28 11:27:27,218 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 395 transitions. [2018-09-28 11:27:27,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:27,219 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:27,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:28,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:28,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 155 states and 396 transitions. [2018-09-28 11:27:28,848 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 396 transitions. [2018-09-28 11:27:28,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:28,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:28,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:33,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 160 states and 411 transitions. [2018-09-28 11:27:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 411 transitions. [2018-09-28 11:27:33,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:33,473 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:33,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-28 11:27:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:37,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 162 states and 414 transitions. [2018-09-28 11:27:37,184 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 414 transitions. [2018-09-28 11:27:37,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:37,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:43,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 165 states and 429 transitions. [2018-09-28 11:27:43,204 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 429 transitions. [2018-09-28 11:27:43,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:43,205 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:51,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:51,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 169 states and 439 transitions. [2018-09-28 11:27:51,681 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 439 transitions. [2018-09-28 11:27:51,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:51,683 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:51,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:27:58,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:27:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 172 states and 453 transitions. [2018-09-28 11:27:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 453 transitions. [2018-09-28 11:27:58,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:27:58,276 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:27:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:27:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:28:06,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:28:06,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 174 states and 459 transitions. [2018-09-28 11:28:06,419 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 459 transitions. [2018-09-28 11:28:06,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:28:06,421 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:28:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:28:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:28:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:28:11,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 175 states and 464 transitions. [2018-09-28 11:28:11,203 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 464 transitions. [2018-09-28 11:28:11,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-28 11:28:11,205 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:28:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:28:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:28:12,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:28:12,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 177 states and 472 transitions. [2018-09-28 11:28:12,743 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 472 transitions. [2018-09-28 11:28:12,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:28:12,745 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:28:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:28:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-09-28 11:28:26,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:28:26,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 180 states and 481 transitions. [2018-09-28 11:28:26,538 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 481 transitions. [2018-09-28 11:28:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:28:26,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:28:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:28:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-28 11:28:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:28:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 180 states and 480 transitions. [2018-09-28 11:28:35,142 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 480 transitions. [2018-09-28 11:28:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:28:35,144 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:28:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:28:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-28 11:28:41,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:28:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 180 states and 479 transitions. [2018-09-28 11:28:41,691 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 479 transitions. [2018-09-28 11:28:41,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-28 11:28:41,693 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:28:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:28:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:28:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:28:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 182 states and 487 transitions. [2018-09-28 11:28:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 487 transitions. [2018-09-28 11:28:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:28:43,308 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:28:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:28:43,413 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-09-28 11:29:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:29:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 185 states and 496 transitions. [2018-09-28 11:29:00,187 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 496 transitions. [2018-09-28 11:29:00,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-28 11:29:00,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:29:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:29:04,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:29:53,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:29:53,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 189 states and 518 transitions. [2018-09-28 11:29:53,030 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 518 transitions. [2018-09-28 11:29:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-28 11:29:53,033 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:29:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:29:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown