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.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/gauss_sum.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 22:16:36,498 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 22:16:36,500 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 22:16:36,519 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 22:16:36,519 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 22:16:36,520 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 22:16:36,522 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 22:16:36,525 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 22:16:36,528 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 22:16:36,529 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 22:16:36,530 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 22:16:36,530 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 22:16:36,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 22:16:36,532 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 22:16:36,534 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 22:16:36,534 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 22:16:36,535 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 22:16:36,537 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 22:16:36,541 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 22:16:36,545 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 22:16:36,546 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 22:16:36,547 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 22:16:36,556 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 22:16:36,556 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 22:16:36,556 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 22:16:36,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 22:16:36,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 22:16:36,559 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 22:16:36,563 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 22:16:36,564 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 22:16:36,565 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 22:16:36,565 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 22:16:36,567 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 22:16:36,567 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 22:16:36,570 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 22:16:36,571 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 22:16:36,572 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default.epf [2018-09-26 22:16:36,606 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 22:16:36,607 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 22:16:36,608 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 22:16:36,608 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 22:16:36,608 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 22:16:36,609 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 22:16:36,609 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 22:16:36,609 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 22:16:36,609 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 22:16:36,610 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 22:16:36,611 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 22:16:36,611 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 22:16:36,611 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 22:16:36,611 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 22:16:36,611 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 22:16:36,611 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 22:16:36,612 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 22:16:36,612 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 22:16:36,612 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 22:16:36,612 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 22:16:36,614 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 22:16:36,614 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:16:36,614 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 22:16:36,614 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 22:16:36,615 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 22:16:36,615 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 22:16:36,615 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 22:16:36,615 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 22:16:36,616 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 22:16:36,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 22:16:36,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 22:16:36,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 22:16:36,693 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 22:16:36,694 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 22:16:36,695 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gauss_sum.i_3.bpl [2018-09-26 22:16:36,695 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gauss_sum.i_3.bpl' [2018-09-26 22:16:36,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 22:16:36,750 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 22:16:36,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 22:16:36,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 22:16:36,751 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 22:16:36,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... [2018-09-26 22:16:36,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... [2018-09-26 22:16:36,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 22:16:36,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 22:16:36,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 22:16:36,792 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 22:16:36,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... [2018-09-26 22:16:36,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... [2018-09-26 22:16:36,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... [2018-09-26 22:16:36,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... [2018-09-26 22:16:36,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... [2018-09-26 22:16:36,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... [2018-09-26 22:16:36,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... [2018-09-26 22:16:36,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 22:16:36,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 22:16:36,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 22:16:36,812 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 22:16:36,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:16:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:16:36,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 22:16:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 22:16:37,171 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 22:16:37,172 INFO L202 PluginConnector]: Adding new model gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:16:37 BoogieIcfgContainer [2018-09-26 22:16:37,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 22:16:37,173 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 22:16:37,173 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 22:16:37,184 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 22:16:37,184 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "gauss_sum.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:16:37" (1/1) ... [2018-09-26 22:16:37,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 22:16:37,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:37,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-26 22:16:37,232 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-26 22:16:37,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 22:16:37,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:37,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:37,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:37,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2018-09-26 22:16:37,651 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-09-26 22:16:37,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:16:37,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:37,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:37,991 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 12 [2018-09-26 22:16:38,469 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-26 22:16:38,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-26 22:16:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-26 22:16:38,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:16:38,603 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:38,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:39,147 WARN L178 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-09-26 22:16:39,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:39,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-09-26 22:16:39,457 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-09-26 22:16:39,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:16:39,458 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:39,485 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:40,200 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-26 22:16:40,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:40,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-09-26 22:16:40,291 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-09-26 22:16:40,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:16:40,291 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:40,335 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:40,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-09-26 22:16:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-09-26 22:16:40,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 22:16:40,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:41,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:41,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2018-09-26 22:16:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-09-26 22:16:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 22:16:41,882 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:41,905 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:42,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2018-09-26 22:16:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-09-26 22:16:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 22:16:42,828 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:42,863 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:43,889 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 22:16:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:43,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2018-09-26 22:16:43,975 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-09-26 22:16:43,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-26 22:16:43,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:44,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:45,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2018-09-26 22:16:45,155 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-09-26 22:16:45,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-26 22:16:45,156 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:45,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:45,986 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:48,139 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-09-26 22:16:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 37 states and 44 transitions. [2018-09-26 22:16:48,467 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-09-26 22:16:48,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-26 22:16:48,468 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:48,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:51,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 41 states and 49 transitions. [2018-09-26 22:16:51,166 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-09-26 22:16:51,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-26 22:16:51,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:51,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 45 states and 54 transitions. [2018-09-26 22:16:52,668 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2018-09-26 22:16:52,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-26 22:16:52,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:52,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 49 states and 59 transitions. [2018-09-26 22:16:54,164 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2018-09-26 22:16:54,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-26 22:16:54,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:54,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:54,500 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:55,766 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-09-26 22:16:55,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:55,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 53 states and 64 transitions. [2018-09-26 22:16:55,986 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2018-09-26 22:16:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-26 22:16:55,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:56,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:56,288 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:57,520 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-09-26 22:16:57,948 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2018-09-26 22:16:58,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:16:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 57 states and 69 transitions. [2018-09-26 22:16:58,073 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2018-09-26 22:16:58,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-26 22:16:58,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:16:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:16:58,109 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:16:58,335 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:16:59,468 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-09-26 22:16:59,956 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-09-26 22:17:00,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:00,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 61 states and 74 transitions. [2018-09-26 22:17:00,084 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2018-09-26 22:17:00,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-26 22:17:00,085 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:00,134 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:01,357 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-09-26 22:17:02,046 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2018-09-26 22:17:02,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 65 states and 79 transitions. [2018-09-26 22:17:02,183 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2018-09-26 22:17:02,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-26 22:17:02,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:02,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:02,470 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:03,563 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2018-09-26 22:17:04,134 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-09-26 22:17:04,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 69 states and 84 transitions. [2018-09-26 22:17:04,351 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2018-09-26 22:17:04,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 22:17:04,352 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:04,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:05,957 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2018-09-26 22:17:06,596 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2018-09-26 22:17:06,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 73 states and 89 transitions. [2018-09-26 22:17:06,778 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2018-09-26 22:17:06,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-26 22:17:06,778 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:06,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:08,604 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2018-09-26 22:17:09,281 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2018-09-26 22:17:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:09,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 77 states and 94 transitions. [2018-09-26 22:17:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 94 transitions. [2018-09-26 22:17:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-26 22:17:09,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:09,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:11,144 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2018-09-26 22:17:11,916 WARN L178 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2018-09-26 22:17:12,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:12,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 81 states and 99 transitions. [2018-09-26 22:17:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 99 transitions. [2018-09-26 22:17:12,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-26 22:17:12,116 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:12,171 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:13,961 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-09-26 22:17:14,720 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2018-09-26 22:17:14,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:14,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 85 states and 104 transitions. [2018-09-26 22:17:14,930 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 104 transitions. [2018-09-26 22:17:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-26 22:17:14,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:14,972 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:15,282 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:16,785 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2018-09-26 22:17:17,879 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2018-09-26 22:17:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 89 states and 109 transitions. [2018-09-26 22:17:18,086 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2018-09-26 22:17:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-26 22:17:18,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:18,130 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:20,126 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2018-09-26 22:17:21,004 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2018-09-26 22:17:21,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:21,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 93 states and 114 transitions. [2018-09-26 22:17:21,238 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2018-09-26 22:17:21,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-26 22:17:21,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:21,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:23,610 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2018-09-26 22:17:24,545 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2018-09-26 22:17:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 97 states and 119 transitions. [2018-09-26 22:17:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 119 transitions. [2018-09-26 22:17:24,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-26 22:17:24,781 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:24,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:26,986 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2018-09-26 22:17:28,110 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2018-09-26 22:17:28,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:28,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 101 states and 124 transitions. [2018-09-26 22:17:28,350 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2018-09-26 22:17:28,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-26 22:17:28,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:28,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:30,590 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2018-09-26 22:17:31,625 WARN L178 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2018-09-26 22:17:31,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 105 states and 129 transitions. [2018-09-26 22:17:31,887 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 129 transitions. [2018-09-26 22:17:31,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-26 22:17:31,887 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:31,957 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:32,670 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:34,573 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2018-09-26 22:17:35,676 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2018-09-26 22:17:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 109 states and 134 transitions. [2018-09-26 22:17:35,949 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2018-09-26 22:17:35,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-26 22:17:35,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:36,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:38,672 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2018-09-26 22:17:39,819 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2018-09-26 22:17:40,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 113 states and 139 transitions. [2018-09-26 22:17:40,830 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 139 transitions. [2018-09-26 22:17:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-26 22:17:40,830 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:40,897 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:43,706 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2018-09-26 22:17:44,924 WARN L178 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2018-09-26 22:17:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:45,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 117 states and 144 transitions. [2018-09-26 22:17:45,242 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 144 transitions. [2018-09-26 22:17:45,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-26 22:17:45,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:45,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:45,772 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:47,933 WARN L178 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2018-09-26 22:17:49,245 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2018-09-26 22:17:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 121 states and 149 transitions. [2018-09-26 22:17:49,570 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 149 transitions. [2018-09-26 22:17:49,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-26 22:17:49,571 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:49,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:52,390 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2018-09-26 22:17:53,832 WARN L178 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2018-09-26 22:17:54,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 125 states and 154 transitions. [2018-09-26 22:17:54,168 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 154 transitions. [2018-09-26 22:17:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-26 22:17:54,169 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:54,252 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:17:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:17:58,021 WARN L178 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2018-09-26 22:17:59,485 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2018-09-26 22:17:59,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:17:59,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 129 states and 159 transitions. [2018-09-26 22:17:59,847 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 159 transitions. [2018-09-26 22:17:59,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-26 22:17:59,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:17:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:17:59,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:00,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:02,193 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 13 [2018-09-26 22:18:02,961 WARN L178 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2018-09-26 22:18:04,670 WARN L178 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2018-09-26 22:18:05,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:18:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 133 states and 164 transitions. [2018-09-26 22:18:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 164 transitions. [2018-09-26 22:18:05,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-09-26 22:18:05,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:18:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:18:05,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:08,265 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2018-09-26 22:18:09,857 WARN L178 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2018-09-26 22:18:10,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:18:10,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 137 states and 169 transitions. [2018-09-26 22:18:10,240 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 169 transitions. [2018-09-26 22:18:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-09-26 22:18:10,241 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:18:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:18:10,310 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:10,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:13,681 WARN L178 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2018-09-26 22:18:15,292 WARN L178 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2018-09-26 22:18:15,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:18:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 141 states and 174 transitions. [2018-09-26 22:18:15,682 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 174 transitions. [2018-09-26 22:18:15,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-09-26 22:18:15,683 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:18:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:18:15,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:18,386 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 13 [2018-09-26 22:18:19,403 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2018-09-26 22:18:21,097 WARN L178 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2018-09-26 22:18:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:18:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 145 states and 179 transitions. [2018-09-26 22:18:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 179 transitions. [2018-09-26 22:18:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-09-26 22:18:21,505 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:18:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:18:21,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:22,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:25,138 WARN L178 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 259 [2018-09-26 22:18:26,893 WARN L178 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2018-09-26 22:18:27,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:18:27,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 149 states and 184 transitions. [2018-09-26 22:18:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 184 transitions. [2018-09-26 22:18:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-26 22:18:27,330 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:18:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:18:27,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:28,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:31,035 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 13 [2018-09-26 22:18:31,933 WARN L178 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2018-09-26 22:18:33,823 WARN L178 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2018-09-26 22:18:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:18:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 153 states and 189 transitions. [2018-09-26 22:18:34,304 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 189 transitions. [2018-09-26 22:18:34,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-09-26 22:18:34,305 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:18:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:18:34,398 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:37,241 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 13 [2018-09-26 22:18:38,183 WARN L178 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2018-09-26 22:18:40,161 WARN L178 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2018-09-26 22:18:40,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:18:40,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 157 states and 194 transitions. [2018-09-26 22:18:40,679 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 194 transitions. [2018-09-26 22:18:40,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-09-26 22:18:40,680 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:18:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:18:40,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:41,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:43,678 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 13 [2018-09-26 22:18:44,784 WARN L178 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2018-09-26 22:18:46,769 WARN L178 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2018-09-26 22:18:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:18:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 161 states and 199 transitions. [2018-09-26 22:18:47,258 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 199 transitions. [2018-09-26 22:18:47,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-09-26 22:18:47,258 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:18:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:18:47,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:51,670 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 13 [2018-09-26 22:18:52,640 WARN L178 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2018-09-26 22:18:54,806 WARN L178 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2018-09-26 22:18:55,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:18:55,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 165 states and 204 transitions. [2018-09-26 22:18:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 204 transitions. [2018-09-26 22:18:55,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-09-26 22:18:55,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:18:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:18:55,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:18:56,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:18:58,554 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 13 [2018-09-26 22:18:59,679 WARN L178 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2018-09-26 22:19:01,860 WARN L178 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2018-09-26 22:19:02,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:19:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 169 states and 209 transitions. [2018-09-26 22:19:02,371 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 209 transitions. [2018-09-26 22:19:02,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-09-26 22:19:02,371 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:19:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:19:02,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:19:03,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:19:05,900 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 13 [2018-09-26 22:19:06,973 WARN L178 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2018-09-26 22:19:09,225 WARN L178 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2018-09-26 22:19:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:19:09,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 173 states and 214 transitions. [2018-09-26 22:19:09,772 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 214 transitions. [2018-09-26 22:19:09,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-09-26 22:19:09,772 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:19:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:19:09,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:19:10,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:19:13,214 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 13 [2018-09-26 22:19:14,347 WARN L178 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2018-09-26 22:19:16,820 WARN L178 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2018-09-26 22:19:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:19:17,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 177 states and 219 transitions. [2018-09-26 22:19:17,383 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 219 transitions. [2018-09-26 22:19:17,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-09-26 22:19:17,383 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:19:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:19:17,492 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:19:18,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:19:23,822 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 13 [2018-09-26 22:19:25,025 WARN L178 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2018-09-26 22:19:27,489 WARN L178 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2018-09-26 22:19:28,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:19:28,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 181 states and 224 transitions. [2018-09-26 22:19:28,076 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 224 transitions. [2018-09-26 22:19:28,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-09-26 22:19:28,076 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:19:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:19:28,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:19:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:19:32,338 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 13 [2018-09-26 22:19:33,530 WARN L178 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2018-09-26 22:19:35,999 WARN L178 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2018-09-26 22:19:36,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:19:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 185 states and 229 transitions. [2018-09-26 22:19:36,603 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 229 transitions. [2018-09-26 22:19:36,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-09-26 22:19:36,604 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:19:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:19:36,743 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:19:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:19:41,403 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 13 [2018-09-26 22:19:42,635 WARN L178 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2018-09-26 22:19:45,205 WARN L178 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2018-09-26 22:19:46,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:19:46,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 189 states and 234 transitions. [2018-09-26 22:19:46,063 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 234 transitions. [2018-09-26 22:19:46,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-09-26 22:19:46,064 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:19:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:19:46,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:19:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:19:50,407 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 13 [2018-09-26 22:19:51,954 WARN L178 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 335 [2018-09-26 22:19:54,576 WARN L178 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2018-09-26 22:19:55,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:19:55,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 193 states and 239 transitions. [2018-09-26 22:19:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 239 transitions. [2018-09-26 22:19:55,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-09-26 22:19:55,219 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:19:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:19:55,357 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:19:56,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:19:59,416 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 13 [2018-09-26 22:20:00,730 WARN L178 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2018-09-26 22:20:03,686 WARN L178 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2018-09-26 22:20:04,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:20:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 197 states and 244 transitions. [2018-09-26 22:20:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 244 transitions. [2018-09-26 22:20:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-09-26 22:20:04,350 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:20:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:20:04,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:20:05,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:20:08,752 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 13 [2018-09-26 22:20:10,083 WARN L178 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2018-09-26 22:20:12,954 WARN L178 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 350 [2018-09-26 22:20:13,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:20:13,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 201 states and 249 transitions. [2018-09-26 22:20:13,622 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 249 transitions. [2018-09-26 22:20:13,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-09-26 22:20:13,623 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:20:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:20:13,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:20:14,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:20:18,104 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 13 [2018-09-26 22:20:19,535 WARN L178 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 356 [2018-09-26 22:20:22,455 WARN L178 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2018-09-26 22:20:23,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:20:23,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 205 states and 254 transitions. [2018-09-26 22:20:23,160 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 254 transitions. [2018-09-26 22:20:23,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-09-26 22:20:23,161 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:20:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:20:23,291 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:20:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:20:27,605 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 13 [2018-09-26 22:20:29,054 WARN L178 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2018-09-26 22:20:32,149 WARN L178 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2018-09-26 22:20:32,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:20:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 209 states and 259 transitions. [2018-09-26 22:20:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 259 transitions. [2018-09-26 22:20:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-09-26 22:20:32,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:20:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:20:33,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:20:34,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:20:37,466 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 13 [2018-09-26 22:20:38,992 WARN L178 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2018-09-26 22:20:42,230 WARN L178 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 371 [2018-09-26 22:20:42,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:20:42,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 213 states and 264 transitions. [2018-09-26 22:20:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 264 transitions. [2018-09-26 22:20:42,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-09-26 22:20:42,960 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:20:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:20:43,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:20:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 0 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:20:47,578 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 374 DAG size of output: 13 [2018-09-26 22:20:49,129 WARN L178 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2018-09-26 22:20:52,471 WARN L178 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 377 [2018-09-26 22:20:53,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:20:53,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 217 states and 269 transitions. [2018-09-26 22:20:53,263 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 269 transitions. [2018-09-26 22:20:53,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-26 22:20:53,263 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:20:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:20:53,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 22:20:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... [2018-09-26 22:20:54,577 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck. Reason: Timeout or Toolchain cancelled by user [2018-09-26 22:20:54,580 INFO L168 Benchmark]: Toolchain (without parser) took 257832.08 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 121.6 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 218.3 MB). Peak memory consumption was 340.0 MB. Max. memory is 7.1 GB. [2018-09-26 22:20:54,581 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 22:20:54,581 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 22:20:54,582 INFO L168 Benchmark]: Boogie Preprocessor took 20.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 22:20:54,582 INFO L168 Benchmark]: RCFGBuilder took 360.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 22:20:54,586 INFO L168 Benchmark]: CodeCheck took 257406.16 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 121.6 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 197.2 MB). Peak memory consumption was 318.8 MB. Max. memory is 7.1 GB. [2018-09-26 22:20:54,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck) Toolchain cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 650 known predicates. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 360.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * CodeCheck took 257406.16 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 121.6 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 197.2 MB). Peak memory consumption was 318.8 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gauss_sum.i_3.bpl_svcomp-Reach-32bit-Kojak_Default.epf_KojakBplInline.xml/Csv-Benchmark-0-2018-09-26_22-20-54-613.csv Completed graceful shutdown