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/20170304-DifficultPathPrograms/fragtest_simple.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 22:52:42,634 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 22:52:42,636 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 22:52:42,649 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 22:52:42,649 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 22:52:42,650 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 22:52:42,652 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 22:52:42,654 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 22:52:42,660 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 22:52:42,662 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 22:52:42,662 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 22:52:42,663 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 22:52:42,664 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 22:52:42,666 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 22:52:42,670 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 22:52:42,671 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 22:52:42,672 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 22:52:42,677 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 22:52:42,681 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 22:52:42,683 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 22:52:42,686 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 22:52:42,689 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 22:52:42,695 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 22:52:42,695 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 22:52:42,695 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 22:52:42,697 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 22:52:42,698 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 22:52:42,699 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 22:52:42,701 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 22:52:42,702 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 22:52:42,702 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 22:52:42,704 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 22:52:42,705 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 22:52:42,705 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 22:52:42,708 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 22:52:42,709 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 22:52:42,710 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-09-26 22:52:42,737 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 22:52:42,738 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 22:52:42,739 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 22:52:42,739 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 22:52:42,740 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 22:52:42,740 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 22:52:42,740 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 22:52:42,741 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 22:52:42,741 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 22:52:42,741 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 22:52:42,741 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 22:52:42,741 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 22:52:42,742 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 22:52:42,742 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 22:52:42,742 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 22:52:42,742 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 22:52:42,744 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 22:52:42,744 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 22:52:42,744 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 22:52:42,744 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 22:52:42,745 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 22:52:42,745 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 22:52:42,745 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:52:42,746 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 22:52:42,746 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 22:52:42,746 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 22:52:42,746 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 22:52:42,746 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 22:52:42,747 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 22:52:42,747 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 22:52:42,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 22:52:42,821 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 22:52:42,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 22:52:42,827 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 22:52:42,828 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 22:52:42,829 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/fragtest_simple.i_4.bpl [2018-09-26 22:52:42,829 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/fragtest_simple.i_4.bpl' [2018-09-26 22:52:42,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 22:52:42,893 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 22:52:42,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 22:52:42,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 22:52:42,895 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 22:52:42,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (1/1) ... [2018-09-26 22:52:42,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (1/1) ... [2018-09-26 22:52:42,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 22:52:42,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 22:52:42,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 22:52:42,940 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 22:52:42,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (1/1) ... [2018-09-26 22:52:42,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (1/1) ... [2018-09-26 22:52:42,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (1/1) ... [2018-09-26 22:52:42,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (1/1) ... [2018-09-26 22:52:42,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (1/1) ... [2018-09-26 22:52:42,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (1/1) ... [2018-09-26 22:52:42,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (1/1) ... [2018-09-26 22:52:42,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 22:52:42,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 22:52:42,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 22:52:42,966 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 22:52:42,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:52:42" (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 22:52:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 22:52:43,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 22:52:43,261 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 22:52:43,262 INFO L202 PluginConnector]: Adding new model fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:52:43 BoogieIcfgContainer [2018-09-26 22:52:43,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 22:52:43,262 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 22:52:43,263 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 22:52:43,275 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 22:52:43,275 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "fragtest_simple.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:52:43" (1/1) ... [2018-09-26 22:52:43,290 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 22:52:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-09-26 22:52:43,332 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-26 22:52:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:52:43,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:43,634 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 22:52:44,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:44,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2018-09-26 22:52:44,413 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2018-09-26 22:52:44,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:52:44,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:44,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:46,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2018-09-26 22:52:46,576 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2018-09-26 22:52:46,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 22:52:46,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:49,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-09-26 22:52:49,983 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-09-26 22:52:49,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 22:52:49,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:50,132 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:51,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2018-09-26 22:52:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-09-26 22:52:51,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 22:52:51,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:55,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2018-09-26 22:52:55,027 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-09-26 22:52:55,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 22:52:55,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:52:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:52:58,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2018-09-26 22:52:58,467 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-09-26 22:52:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-26 22:52:58,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:52:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:52:58,859 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2018-09-26 22:53:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-09-26 22:53:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-26 22:53:07,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:15,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:15,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 35 states and 42 transitions. [2018-09-26 22:53:15,309 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-09-26 22:53:15,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-26 22:53:15,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:15,894 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 39 states and 47 transitions. [2018-09-26 22:53:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2018-09-26 22:53:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-26 22:53:23,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:33,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:33,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 41 states and 49 transitions. [2018-09-26 22:53:33,084 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-09-26 22:53:33,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-26 22:53:33,085 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:33,884 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:45,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 45 states and 54 transitions. [2018-09-26 22:53:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2018-09-26 22:53:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-26 22:53:45,173 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:53:47,573 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 42 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:53:59,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:53:59,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 47 states and 56 transitions. [2018-09-26 22:53:59,718 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2018-09-26 22:53:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-26 22:53:59,721 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:53:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 42 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 51 states and 61 transitions. [2018-09-26 22:54:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2018-09-26 22:54:17,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-26 22:54:17,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 56 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:54:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:54:37,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 53 states and 63 transitions. [2018-09-26 22:54:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2018-09-26 22:54:37,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-26 22:54:37,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:54:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:54:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 56 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:55:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:55:02,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 57 states and 68 transitions. [2018-09-26 22:55:02,257 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2018-09-26 22:55:02,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-26 22:55:02,258 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:55:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:55:07,618 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:55:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:55:31,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 59 states and 70 transitions. [2018-09-26 22:55:31,120 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2018-09-26 22:55:31,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-26 22:55:31,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:55:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:55:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:05,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 63 states and 75 transitions. [2018-09-26 22:56:05,970 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2018-09-26 22:56:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 22:56:05,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 90 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:56:46,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:56:46,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 65 states and 77 transitions. [2018-09-26 22:56:46,166 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2018-09-26 22:56:46,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-26 22:56:46,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:56:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:56:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 90 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown