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/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-09-30 21:40:11,570 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 21:40:11,572 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 21:40:11,589 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 21:40:11,589 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 21:40:11,590 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 21:40:11,591 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 21:40:11,593 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 21:40:11,595 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 21:40:11,595 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 21:40:11,596 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 21:40:11,597 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 21:40:11,598 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 21:40:11,598 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 21:40:11,600 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 21:40:11,600 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 21:40:11,601 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 21:40:11,603 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 21:40:11,605 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 21:40:11,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 21:40:11,608 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 21:40:11,609 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 21:40:11,611 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 21:40:11,612 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 21:40:11,612 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 21:40:11,613 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 21:40:11,614 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 21:40:11,615 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 21:40:11,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 21:40:11,618 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 21:40:11,618 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 21:40:11,619 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 21:40:11,619 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 21:40:11,619 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 21:40:11,620 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 21:40:11,623 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 21:40:11,623 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-09-30 21:40:11,653 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 21:40:11,654 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 21:40:11,655 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 21:40:11,655 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 21:40:11,656 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 21:40:11,656 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 21:40:11,656 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 21:40:11,657 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 21:40:11,657 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 21:40:11,657 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 21:40:11,657 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 21:40:11,658 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 21:40:11,659 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 21:40:11,659 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 21:40:11,659 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 21:40:11,659 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 21:40:11,659 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 21:40:11,660 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-30 21:40:11,660 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-30 21:40:11,660 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 21:40:11,660 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 21:40:11,660 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 21:40:11,661 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:40:11,661 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 21:40:11,661 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 21:40:11,661 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 21:40:11,661 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-30 21:40:11,662 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 21:40:11,662 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 21:40:11,662 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 21:40:11,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 21:40:11,725 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 21:40:11,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 21:40:11,732 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 21:40:11,732 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 21:40:11,733 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl [2018-09-30 21:40:11,734 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/nested.i_4.bplTransformedIcfg_BEv2_3.bpl' [2018-09-30 21:40:11,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 21:40:11,785 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 21:40:11,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 21:40:11,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 21:40:11,786 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 21:40:11,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... [2018-09-30 21:40:11,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... [2018-09-30 21:40:11,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 21:40:11,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 21:40:11,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 21:40:11,825 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 21:40:11,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... [2018-09-30 21:40:11,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... [2018-09-30 21:40:11,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... [2018-09-30 21:40:11,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... [2018-09-30 21:40:11,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... [2018-09-30 21:40:11,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... [2018-09-30 21:40:11,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... [2018-09-30 21:40:11,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 21:40:11,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 21:40:11,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 21:40:11,843 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 21:40:11,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 09:40:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-30 21:40:11,906 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-30 21:40:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 21:40:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 21:40:12,149 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 21:40:12,150 INFO L202 PluginConnector]: Adding new model nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:40:12 BoogieIcfgContainer [2018-09-30 21:40:12,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 21:40:12,150 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-30 21:40:12,150 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-30 21:40:12,162 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-30 21:40:12,162 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "nested.i_4.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 09:40:12" (1/1) ... [2018-09-30 21:40:12,176 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 21:40:12,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 5 states and 7 transitions. [2018-09-30 21:40:12,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 7 transitions. [2018-09-30 21:40:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 21:40:12,213 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:12,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:12,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 6 states and 8 transitions. [2018-09-30 21:40:12,645 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 8 transitions. [2018-09-30 21:40:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 21:40:12,646 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:13,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 8 states and 13 transitions. [2018-09-30 21:40:13,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2018-09-30 21:40:13,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 21:40:13,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-09-30 21:40:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-09-30 21:40:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-30 21:40:14,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:14,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 10 states and 19 transitions. [2018-09-30 21:40:14,907 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 19 transitions. [2018-09-30 21:40:14,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 21:40:14,908 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 11 states and 22 transitions. [2018-09-30 21:40:15,577 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 22 transitions. [2018-09-30 21:40:15,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-30 21:40:15,578 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:15,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:15,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 12 states and 25 transitions. [2018-09-30 21:40:15,942 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 25 transitions. [2018-09-30 21:40:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-30 21:40:15,943 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:16,014 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:16,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 13 states and 28 transitions. [2018-09-30 21:40:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 28 transitions. [2018-09-30 21:40:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-30 21:40:16,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:17,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:17,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 14 states and 31 transitions. [2018-09-30 21:40:17,143 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 31 transitions. [2018-09-30 21:40:17,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-30 21:40:17,144 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 15 states and 34 transitions. [2018-09-30 21:40:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 34 transitions. [2018-09-30 21:40:17,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 21:40:17,739 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:18,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 16 states and 37 transitions. [2018-09-30 21:40:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 37 transitions. [2018-09-30 21:40:18,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 21:40:18,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 21:40:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:19,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 17 states and 39 transitions. [2018-09-30 21:40:19,146 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 39 transitions. [2018-09-30 21:40:19,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 21:40:19,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:19,212 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-09-30 21:40:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 29 states and 62 transitions. [2018-09-30 21:40:21,876 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 62 transitions. [2018-09-30 21:40:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-30 21:40:21,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-09-30 21:40:25,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2018-09-30 21:40:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2018-09-30 21:40:25,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-30 21:40:25,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-09-30 21:40:28,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 40 states and 64 transitions. [2018-09-30 21:40:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2018-09-30 21:40:28,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-30 21:40:28,252 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-09-30 21:40:31,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:31,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2018-09-30 21:40:31,683 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2018-09-30 21:40:31,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-30 21:40:31,684 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2018-09-30 21:40:36,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 52 states and 77 transitions. [2018-09-30 21:40:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2018-09-30 21:40:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-30 21:40:36,052 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-09-30 21:40:41,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:41,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 52 states and 67 transitions. [2018-09-30 21:40:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2018-09-30 21:40:41,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-30 21:40:41,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 0 proven. 736 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2018-09-30 21:40:46,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:46,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 64 states and 90 transitions. [2018-09-30 21:40:46,692 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2018-09-30 21:40:46,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-30 21:40:46,694 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2018-09-30 21:40:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:40:52,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 64 states and 80 transitions. [2018-09-30 21:40:52,875 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2018-09-30 21:40:52,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-30 21:40:52,876 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:40:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:40:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-09-30 21:41:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:41:00,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 76 states and 103 transitions. [2018-09-30 21:41:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2018-09-30 21:41:00,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-09-30 21:41:00,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:41:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:41:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2018-09-30 21:41:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:41:08,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 76 states and 93 transitions. [2018-09-30 21:41:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2018-09-30 21:41:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-09-30 21:41:08,426 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:41:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:41:08,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2166 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-30 21:41:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:41:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 88 states and 116 transitions. [2018-09-30 21:41:16,777 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 116 transitions. [2018-09-30 21:41:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-09-30 21:41:16,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:41:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:41:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2239 backedges. 7 proven. 66 refuted. 0 times theorem prover too weak. 2166 trivial. 0 not checked. [2018-09-30 21:41:25,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:41:25,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 88 states and 106 transitions. [2018-09-30 21:41:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 106 transitions. [2018-09-30 21:41:25,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-09-30 21:41:25,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:41:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:41:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2954 backedges. 0 proven. 2569 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2018-09-30 21:41:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:41:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 100 states and 129 transitions. [2018-09-30 21:41:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 129 transitions. [2018-09-30 21:41:35,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-09-30 21:41:35,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:41:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:41:35,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3039 backedges. 8 proven. 77 refuted. 0 times theorem prover too weak. 2954 trivial. 0 not checked. [2018-09-30 21:41:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:41:46,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 100 states and 119 transitions. [2018-09-30 21:41:46,443 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2018-09-30 21:41:46,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-09-30 21:41:46,444 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:41:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:41:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 0 proven. 3424 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2018-09-30 21:41:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:41:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 112 states and 142 transitions. [2018-09-30 21:41:59,148 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 142 transitions. [2018-09-30 21:41:59,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-09-30 21:41:59,149 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:41:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:41:59,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3961 backedges. 9 proven. 88 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2018-09-30 21:42:12,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:42:12,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 112 states and 132 transitions. [2018-09-30 21:42:12,631 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 132 transitions. [2018-09-30 21:42:12,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-09-30 21:42:12,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:42:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:42:13,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4896 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-09-30 21:42:26,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:42:26,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 124 states and 144 transitions. [2018-09-30 21:42:26,701 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2018-09-30 21:42:26,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-09-30 21:42:26,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:42:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:42:26,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5005 backedges. 10 proven. 99 refuted. 0 times theorem prover too weak. 4896 trivial. 0 not checked. [2018-09-30 21:42:42,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-30 21:42:42,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 124 states and 134 transitions. [2018-09-30 21:42:42,531 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2018-09-30 21:42:42,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-30 21:42:42,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-30 21:42:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 21:43:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6050 backedges. 6041 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown