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/nonlinear/Mult1-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-09-30 21:58:23,594 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 21:58:23,596 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 21:58:23,614 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 21:58:23,615 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 21:58:23,616 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 21:58:23,617 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 21:58:23,619 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 21:58:23,621 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 21:58:23,622 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 21:58:23,626 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 21:58:23,626 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 21:58:23,627 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 21:58:23,629 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 21:58:23,633 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 21:58:23,634 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 21:58:23,635 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 21:58:23,636 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 21:58:23,647 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 21:58:23,648 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 21:58:23,649 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 21:58:23,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 21:58:23,655 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 21:58:23,655 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 21:58:23,655 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 21:58:23,657 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 21:58:23,657 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 21:58:23,658 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 21:58:23,659 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 21:58:23,662 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 21:58:23,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 21:58:23,663 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 21:58:23,664 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 21:58:23,664 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 21:58:23,665 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 21:58:23,667 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 21:58:23,668 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-09-30 21:58:23,697 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 21:58:23,698 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 21:58:23,698 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 21:58:23,699 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 21:58:23,699 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 21:58:23,700 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 21:58:23,700 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 21:58:23,700 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 21:58:23,701 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 21:58:23,701 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 21:58:23,701 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 21:58:23,701 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 21:58:23,701 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 21:58:23,702 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 21:58:23,702 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 21:58:23,702 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 21:58:23,702 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 21:58:23,702 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 21:58:23,703 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 21:58:23,704 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 21:58:23,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 21:58:23,704 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 21:58:23,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:58:23,704 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 21:58:23,705 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 21:58:23,705 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 21:58:23,705 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 21:58:23,705 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 21:58:23,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 21:58:23,705 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 21:58:23,751 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 21:58:23,764 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 21:58:23,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 21:58:23,769 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 21:58:23,770 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 21:58:23,770 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Mult1-Safe.bpl [2018-09-30 21:58:23,770 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Mult1-Safe.bpl' [2018-09-30 21:58:23,813 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 21:58:23,818 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 21:58:23,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 21:58:23,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 21:58:23,819 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 21:58:23,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... [2018-09-30 21:58:23,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... [2018-09-30 21:58:23,856 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 21:58:23,857 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 21:58:23,857 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 21:58:23,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 21:58:23,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 21:58:23,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 21:58:23,860 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 21:58:23,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... [2018-09-30 21:58:23,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... [2018-09-30 21:58:23,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... [2018-09-30 21:58:23,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... [2018-09-30 21:58:23,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... [2018-09-30 21:58:23,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... [2018-09-30 21:58:23,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... [2018-09-30 21:58:23,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 21:58:23,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 21:58:23,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 21:58:23,883 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 21:58:23,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:58:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:58:23,952 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mult given in one single declaration [2018-09-30 21:58:23,952 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2018-09-30 21:58:23,953 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2018-09-30 21:58:24,026 WARN L639 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-09-30 21:58:24,218 INFO L345 CfgBuilder]: Using library mode [2018-09-30 21:58:24,219 INFO L202 PluginConnector]: Adding new model Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:58:24 BoogieIcfgContainer [2018-09-30 21:58:24,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 21:58:24,219 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 21:58:24,219 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 21:58:24,231 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 21:58:24,232 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:58:24" (1/1) ... [2018-09-30 21:58:24,249 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 21:58:24,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:24,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-30 21:58:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-30 21:58:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 21:58:24,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:24,442 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:25,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 7 states and 11 transitions. [2018-09-30 21:58:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 11 transitions. [2018-09-30 21:58:25,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 21:58:25,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:25,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-09-30 21:58:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-09-30 21:58:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 21:58:26,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:27,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:27,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:28,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 13 states and 25 transitions. [2018-09-30 21:58:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 25 transitions. [2018-09-30 21:58:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 21:58:28,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:28,547 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:29,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:29,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 16 states and 30 transitions. [2018-09-30 21:58:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 30 transitions. [2018-09-30 21:58:29,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-30 21:58:29,682 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:29,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:29,948 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:31,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 18 states and 35 transitions. [2018-09-30 21:58:31,910 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 35 transitions. [2018-09-30 21:58:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 21:58:31,911 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:31,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:34,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 21 states and 40 transitions. [2018-09-30 21:58:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 40 transitions. [2018-09-30 21:58:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-30 21:58:34,027 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:34,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:34,310 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:35,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 23 states and 45 transitions. [2018-09-30 21:58:35,546 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 45 transitions. [2018-09-30 21:58:35,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-30 21:58:35,547 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:35,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:35,859 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:37,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 26 states and 51 transitions. [2018-09-30 21:58:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 51 transitions. [2018-09-30 21:58:37,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-30 21:58:37,683 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:37,740 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:39,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 29 states and 56 transitions. [2018-09-30 21:58:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 56 transitions. [2018-09-30 21:58:39,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-30 21:58:39,978 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:40,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:40,484 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:42,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 31 states and 61 transitions. [2018-09-30 21:58:42,187 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 61 transitions. [2018-09-30 21:58:42,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 21:58:42,189 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:42,232 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:42,630 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:45,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:45,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 34 states and 67 transitions. [2018-09-30 21:58:45,014 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 67 transitions. [2018-09-30 21:58:45,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 21:58:45,015 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:45,044 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:45,643 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:47,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 72 transitions. [2018-09-30 21:58:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 72 transitions. [2018-09-30 21:58:47,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 21:58:47,764 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:47,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:50,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 39 states and 76 transitions. [2018-09-30 21:58:50,024 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 76 transitions. [2018-09-30 21:58:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 21:58:50,025 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:50,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:52,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:52,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 41 states and 80 transitions. [2018-09-30 21:58:52,533 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 80 transitions. [2018-09-30 21:58:52,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-30 21:58:52,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:52,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:53,008 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 43 states and 84 transitions. [2018-09-30 21:58:54,948 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 84 transitions. [2018-09-30 21:58:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-30 21:58:54,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:55,031 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:55,505 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:58:58,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:58:58,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 45 states and 89 transitions. [2018-09-30 21:58:58,358 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 89 transitions. [2018-09-30 21:58:58,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-30 21:58:58,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:58:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:58:58,454 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:58:58,978 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:02,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:02,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 48 states and 95 transitions. [2018-09-30 21:59:02,786 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 95 transitions. [2018-09-30 21:59:02,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-30 21:59:02,788 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:02,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:03,850 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:08,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 51 states and 101 transitions. [2018-09-30 21:59:08,278 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 101 transitions. [2018-09-30 21:59:08,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-30 21:59:08,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:08,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:13,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 54 states and 106 transitions. [2018-09-30 21:59:13,286 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 106 transitions. [2018-09-30 21:59:13,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-30 21:59:13,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:13,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:14,054 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 56 states and 110 transitions. [2018-09-30 21:59:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 110 transitions. [2018-09-30 21:59:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-30 21:59:17,403 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:17,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:22,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:22,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 58 states and 115 transitions. [2018-09-30 21:59:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 115 transitions. [2018-09-30 21:59:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-30 21:59:22,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:22,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 61 states and 121 transitions. [2018-09-30 21:59:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 121 transitions. [2018-09-30 21:59:28,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-30 21:59:28,934 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:29,032 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:34,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:34,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 64 states and 126 transitions. [2018-09-30 21:59:34,748 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 126 transitions. [2018-09-30 21:59:34,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-30 21:59:34,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:35,011 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:41,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 66 states and 131 transitions. [2018-09-30 21:59:41,273 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2018-09-30 21:59:41,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-30 21:59:41,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:41,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:47,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:47,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 69 states and 136 transitions. [2018-09-30 21:59:47,930 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 136 transitions. [2018-09-30 21:59:47,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 21:59:47,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:48,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:59:55,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:59:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 71 states and 141 transitions. [2018-09-30 21:59:55,059 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 141 transitions. [2018-09-30 21:59:55,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-30 21:59:55,059 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:59:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:59:55,451 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 21:59:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:00:05,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:00:05,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 74 states and 147 transitions. [2018-09-30 22:00:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 147 transitions. [2018-09-30 22:00:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-30 22:00:05,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:00:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:00:05,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:00:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:00:13,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:00:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 77 states and 152 transitions. [2018-09-30 22:00:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 152 transitions. [2018-09-30 22:00:13,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-30 22:00:13,859 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:00:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:00:13,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:00:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:00:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:00:20,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 79 states and 156 transitions. [2018-09-30 22:00:20,236 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 156 transitions. [2018-09-30 22:00:20,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-30 22:00:20,236 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:00:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:00:20,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:00:21,920 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:00:29,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:00:29,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 81 states and 161 transitions. [2018-09-30 22:00:29,095 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 161 transitions. [2018-09-30 22:00:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-30 22:00:29,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:00:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:00:29,756 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:00:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:00:40,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:00:40,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 84 states and 167 transitions. [2018-09-30 22:00:40,588 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 167 transitions. [2018-09-30 22:00:40,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-30 22:00:40,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:00:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:00:40,686 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:00:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:00:51,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:00:51,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 87 states and 172 transitions. [2018-09-30 22:00:51,318 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 172 transitions. [2018-09-30 22:00:51,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-30 22:00:51,319 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:00:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:00:51,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:00:52,751 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:00:59,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:00:59,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 89 states and 176 transitions. [2018-09-30 22:00:59,051 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 176 transitions. [2018-09-30 22:00:59,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-30 22:00:59,051 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:00:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:00:59,175 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:01:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:01:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:01:07,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 91 states and 180 transitions. [2018-09-30 22:01:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 180 transitions. [2018-09-30 22:01:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-30 22:01:07,495 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:01:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:01:07,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:01:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:01:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:01:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 93 states and 184 transitions. [2018-09-30 22:01:15,283 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 184 transitions. [2018-09-30 22:01:15,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-30 22:01:15,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:01:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:01:15,376 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:01:16,540 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:01:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:01:23,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 95 states and 188 transitions. [2018-09-30 22:01:23,390 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 188 transitions. [2018-09-30 22:01:23,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-30 22:01:23,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:01:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:01:23,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:01:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:01:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:01:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 97 states and 192 transitions. [2018-09-30 22:01:32,246 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 192 transitions. [2018-09-30 22:01:32,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-30 22:01:32,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:01:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:01:32,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:01:33,609 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:01:40,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:01:40,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 99 states and 196 transitions. [2018-09-30 22:01:40,780 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 196 transitions. [2018-09-30 22:01:40,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-30 22:01:40,781 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:01:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:01:41,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:01:43,167 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:01:53,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:01:53,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 101 states and 201 transitions. [2018-09-30 22:01:53,152 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 201 transitions. [2018-09-30 22:01:53,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-30 22:01:53,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:01:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:01:54,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:01:56,046 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:02:08,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:02:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 104 states and 207 transitions. [2018-09-30 22:02:08,975 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 207 transitions. [2018-09-30 22:02:08,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-30 22:02:08,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:02:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:02:10,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:02:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:02:26,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:02:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 107 states and 213 transitions. [2018-09-30 22:02:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 213 transitions. [2018-09-30 22:02:26,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-30 22:02:26,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:02:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:02:26,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:02:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:02:39,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:02:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 110 states and 218 transitions. [2018-09-30 22:02:39,367 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 218 transitions. [2018-09-30 22:02:39,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-30 22:02:39,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:02:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:02:39,521 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:02:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 22:02:50,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 22:02:50,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 112 states and 222 transitions. [2018-09-30 22:02:50,003 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 222 transitions. [2018-09-30 22:02:50,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-30 22:02:50,004 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 22:02:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 22:02:50,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 22:02:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown