java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf -i ../../../trunk/examples/programs/real-life/threadpooling_out2.mover.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 22:38:44,572 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 22:38:44,574 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 22:38:44,586 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 22:38:44,586 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 22:38:44,587 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 22:38:44,589 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 22:38:44,591 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 22:38:44,592 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 22:38:44,593 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 22:38:44,594 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 22:38:44,595 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 22:38:44,595 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 22:38:44,597 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 22:38:44,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 22:38:44,599 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 22:38:44,600 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 22:38:44,601 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 22:38:44,604 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 22:38:44,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 22:38:44,608 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 22:38:44,613 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 22:38:44,617 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 22:38:44,617 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 22:38:44,617 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 22:38:44,619 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 22:38:44,620 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 22:38:44,621 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 22:38:44,624 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 22:38:44,626 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 22:38:44,627 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 22:38:44,628 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 22:38:44,628 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 22:38:44,628 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 22:38:44,629 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 22:38:44,632 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 22:38:44,632 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 22:38:44,657 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 22:38:44,659 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 22:38:44,661 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 22:38:44,661 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 22:38:44,662 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 22:38:44,662 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 22:38:44,662 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 22:38:44,662 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 22:38:44,663 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 22:38:44,663 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 22:38:44,664 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 22:38:44,664 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 22:38:44,664 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 22:38:44,664 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 22:38:44,664 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 22:38:44,665 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 22:38:44,665 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 22:38:44,665 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-26 22:38:44,665 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-26 22:38:44,665 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 22:38:44,666 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 22:38:44,666 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 22:38:44,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-26 22:38:44,666 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 22:38:44,666 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 22:38:44,667 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 22:38:44,667 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-26 22:38:44,667 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 22:38:44,667 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 22:38:44,667 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 22:38:44,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 22:38:44,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 22:38:44,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 22:38:44,752 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 22:38:44,753 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 22:38:44,754 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_out2.mover.bpl [2018-09-26 22:38:44,754 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/threadpooling_out2.mover.bpl' [2018-09-26 22:38:44,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 22:38:44,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 22:38:44,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 22:38:44,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 22:38:44,839 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 22:38:44,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,879 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 22:38:44,880 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 22:38:44,880 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 22:38:44,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 22:38:44,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 22:38:44,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 22:38:44,884 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 22:38:44,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (1/1) ... [2018-09-26 22:38:44,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 22:38:44,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 22:38:44,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 22:38:44,925 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 22:38:44,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 10:38:44" (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 22:38:45,015 INFO L124 BoogieDeclarations]: Specification and implementation of procedure product given in one single declaration [2018-09-26 22:38:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure product [2018-09-26 22:38:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure product [2018-09-26 22:38:45,574 INFO L343 CfgBuilder]: Using library mode [2018-09-26 22:38:45,574 INFO L202 PluginConnector]: Adding new model threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:38:45 BoogieIcfgContainer [2018-09-26 22:38:45,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 22:38:45,575 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-26 22:38:45,575 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-26 22:38:45,586 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-26 22:38:45,586 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "threadpooling_out2.mover.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 10:38:45" (1/1) ... [2018-09-26 22:38:45,601 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 22:38:45,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:45,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 16 states and 31 transitions. [2018-09-26 22:38:45,637 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 31 transitions. [2018-09-26 22:38:45,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 22:38:45,644 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:45,851 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 22:38:46,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:46,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 19 states and 45 transitions. [2018-09-26 22:38:46,785 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 45 transitions. [2018-09-26 22:38:46,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 22:38:46,786 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:46,919 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 22:38:48,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 22 states and 61 transitions. [2018-09-26 22:38:48,884 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 61 transitions. [2018-09-26 22:38:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 22:38:48,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:48,915 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 22:38:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:50,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 24 states and 73 transitions. [2018-09-26 22:38:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 73 transitions. [2018-09-26 22:38:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 22:38:50,823 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:50,946 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 22:38:52,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 27 states and 90 transitions. [2018-09-26 22:38:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 90 transitions. [2018-09-26 22:38:52,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 22:38:52,488 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:52,722 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 22:38:54,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:54,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 30 states and 112 transitions. [2018-09-26 22:38:54,166 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 112 transitions. [2018-09-26 22:38:54,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 22:38:54,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:54,205 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 22:38:54,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:54,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 31 states and 118 transitions. [2018-09-26 22:38:54,884 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 118 transitions. [2018-09-26 22:38:54,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:38:54,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:38:56,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:56,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 33 states and 131 transitions. [2018-09-26 22:38:56,695 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 131 transitions. [2018-09-26 22:38:56,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:38:56,696 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:56,926 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 22:38:59,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:38:59,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 37 states and 152 transitions. [2018-09-26 22:38:59,116 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 152 transitions. [2018-09-26 22:38:59,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:38:59,117 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:38:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:38:59,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:39:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:00,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 38 states and 157 transitions. [2018-09-26 22:39:00,483 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 157 transitions. [2018-09-26 22:39:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:39:00,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:01,024 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 22:39:05,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 42 states and 182 transitions. [2018-09-26 22:39:05,954 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 182 transitions. [2018-09-26 22:39:05,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:39:05,955 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:06,539 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 22:39:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:08,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 43 states and 189 transitions. [2018-09-26 22:39:08,666 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 189 transitions. [2018-09-26 22:39:08,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:39:08,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:39:12,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 44 states and 198 transitions. [2018-09-26 22:39:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 198 transitions. [2018-09-26 22:39:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:39:12,670 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:12,719 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 22:39:14,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 45 states and 202 transitions. [2018-09-26 22:39:14,971 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 202 transitions. [2018-09-26 22:39:14,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:39:14,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:15,970 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 22:39:22,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 48 states and 223 transitions. [2018-09-26 22:39:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 223 transitions. [2018-09-26 22:39:22,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:39:22,725 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:23,388 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 22:39:30,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:30,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 51 states and 250 transitions. [2018-09-26 22:39:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 250 transitions. [2018-09-26 22:39:30,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:39:30,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:32,380 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 22:39:39,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:39,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 53 states and 275 transitions. [2018-09-26 22:39:39,951 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 275 transitions. [2018-09-26 22:39:39,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:39:39,952 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:40,028 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 22:39:47,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:47,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 55 states and 302 transitions. [2018-09-26 22:39:47,038 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 302 transitions. [2018-09-26 22:39:47,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 22:39:47,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:48,135 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 22:39:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:39:53,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 56 states and 319 transitions. [2018-09-26 22:39:53,047 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 319 transitions. [2018-09-26 22:39:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:39:53,048 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:39:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:39:54,254 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 22:40:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:04,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 58 states and 339 transitions. [2018-09-26 22:40:04,394 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 339 transitions. [2018-09-26 22:40:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:40:04,395 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:04,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:09,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 59 states and 345 transitions. [2018-09-26 22:40:09,963 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 345 transitions. [2018-09-26 22:40:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:40:09,964 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:26,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 61 states and 363 transitions. [2018-09-26 22:40:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 363 transitions. [2018-09-26 22:40:26,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:40:26,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:33,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:33,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 62 states and 366 transitions. [2018-09-26 22:40:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 366 transitions. [2018-09-26 22:40:33,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:40:33,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:49,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:49,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 64 states and 390 transitions. [2018-09-26 22:40:49,834 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 390 transitions. [2018-09-26 22:40:49,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:40:49,834 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:40:57,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:40:57,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 65 states and 405 transitions. [2018-09-26 22:40:57,310 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 405 transitions. [2018-09-26 22:40:57,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:40:57,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:40:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:40:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:41:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 66 states and 414 transitions. [2018-09-26 22:41:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 414 transitions. [2018-09-26 22:41:04,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:41:04,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:04,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:41:18,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:18,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 68 states and 436 transitions. [2018-09-26 22:41:18,669 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 436 transitions. [2018-09-26 22:41:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:41:18,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:18,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:41:27,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:27,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 69 states and 448 transitions. [2018-09-26 22:41:27,810 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 448 transitions. [2018-09-26 22:41:27,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:41:27,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:33,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:41:54,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:41:54,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 71 states and 464 transitions. [2018-09-26 22:41:54,385 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 464 transitions. [2018-09-26 22:41:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:41:54,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:41:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:41:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:42:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:08,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 72 states and 482 transitions. [2018-09-26 22:42:08,022 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 482 transitions. [2018-09-26 22:42:08,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 22:42:08,023 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:42:17,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:17,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 73 states and 491 transitions. [2018-09-26 22:42:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 491 transitions. [2018-09-26 22:42:17,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:42:17,801 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-26 22:42:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:42:32,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 74 states and 501 transitions. [2018-09-26 22:42:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 501 transitions. [2018-09-26 22:42:32,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:42:32,610 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:42:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:42:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 22:43:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-26 22:43:20,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 77 states and 548 transitions. [2018-09-26 22:43:20,269 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 548 transitions. [2018-09-26 22:43:20,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 22:43:20,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-26 22:43:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 22:43:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown