./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3607a70e53f56c4b4860f9fca9676a925474c3df ........................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:29:25,718 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:29:25,719 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:29:25,724 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:29:25,725 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:29:25,725 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:29:25,726 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:29:25,727 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:29:25,727 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:29:25,728 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:29:25,729 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:29:25,729 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:29:25,729 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:29:25,732 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:29:25,733 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:29:25,733 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:29:25,734 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:29:25,735 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:29:25,736 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:29:25,737 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:29:25,738 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:29:25,738 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:29:25,740 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:29:25,740 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:29:25,740 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:29:25,741 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:29:25,741 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:29:25,742 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:29:25,742 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:29:25,743 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:29:25,743 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:29:25,744 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:29:25,744 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:29:25,744 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:29:25,745 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:29:25,745 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:29:25,745 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 12:29:25,753 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:29:25,754 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:29:25,754 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:29:25,754 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:29:25,755 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:29:25,755 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:29:25,755 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:29:25,755 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:29:25,755 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:29:25,755 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:29:25,756 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:29:25,756 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:29:25,756 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:29:25,756 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:29:25,756 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:29:25,756 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:29:25,756 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:29:25,757 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:29:25,757 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 12:29:25,757 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 12:29:25,757 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:29:25,757 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:29:25,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 12:29:25,757 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:29:25,758 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:29:25,758 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:29:25,758 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 12:29:25,758 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:29:25,758 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:29:25,758 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3607a70e53f56c4b4860f9fca9676a925474c3df [2018-11-18 12:29:25,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:29:25,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:29:25,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:29:25,795 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:29:25,796 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:29:25,796 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-11-18 12:29:25,837 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/data/971ea8d19/b3b56cd3d2434fc4ac01dc15b4b4fe7a/FLAGf9a36aead [2018-11-18 12:29:26,170 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:29:26,171 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-11-18 12:29:26,176 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/data/971ea8d19/b3b56cd3d2434fc4ac01dc15b4b4fe7a/FLAGf9a36aead [2018-11-18 12:29:26,600 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/data/971ea8d19/b3b56cd3d2434fc4ac01dc15b4b4fe7a [2018-11-18 12:29:26,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:29:26,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:29:26,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:29:26,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:29:26,607 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:29:26,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7072fde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26, skipping insertion in model container [2018-11-18 12:29:26,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:29:26,630 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:29:26,739 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:29:26,742 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:29:26,758 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:29:26,769 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:29:26,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26 WrapperNode [2018-11-18 12:29:26,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:29:26,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:29:26,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:29:26,771 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:29:26,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:29:26,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:29:26,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:29:26,796 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:29:26,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... [2018-11-18 12:29:26,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:29:26,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:29:26,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:29:26,810 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:29:26,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/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 [2018-11-18 12:29:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:29:26,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:29:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 12:29:26,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 12:29:27,074 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:29:27,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:29:27 BoogieIcfgContainer [2018-11-18 12:29:27,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:29:27,075 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 12:29:27,075 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 12:29:27,082 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 12:29:27,082 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:29:27" (1/1) ... [2018-11-18 12:29:27,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:29:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:27,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 49 states and 83 transitions. [2018-11-18 12:29:27,130 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 83 transitions. [2018-11-18 12:29:27,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 12:29:27,131 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:29:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:27,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 51 states and 101 transitions. [2018-11-18 12:29:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 101 transitions. [2018-11-18 12:29:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:29:27,371 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:27,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:29:27,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:27,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 51 states and 99 transitions. [2018-11-18 12:29:27,849 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 99 transitions. [2018-11-18 12:29:27,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:29:27,850 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:27,878 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 12:29:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 51 states and 98 transitions. [2018-11-18 12:29:27,961 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 98 transitions. [2018-11-18 12:29:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 12:29:27,962 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:27,991 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 12:29:28,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 51 states and 97 transitions. [2018-11-18 12:29:28,014 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2018-11-18 12:29:28,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 12:29:28,015 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-18 12:29:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 51 states and 96 transitions. [2018-11-18 12:29:28,041 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2018-11-18 12:29:28,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 12:29:28,041 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,075 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 12:29:28,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 54 states and 100 transitions. [2018-11-18 12:29:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 100 transitions. [2018-11-18 12:29:28,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 12:29:28,111 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 12:29:28,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 55 states and 101 transitions. [2018-11-18 12:29:28,164 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 101 transitions. [2018-11-18 12:29:28,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 12:29:28,165 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,190 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 12:29:28,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 56 states and 101 transitions. [2018-11-18 12:29:28,219 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 101 transitions. [2018-11-18 12:29:28,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 12:29:28,221 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 12:29:28,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 60 states and 108 transitions. [2018-11-18 12:29:28,384 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 108 transitions. [2018-11-18 12:29:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 12:29:28,385 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,403 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 12:29:28,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 61 states and 109 transitions. [2018-11-18 12:29:28,422 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 109 transitions. [2018-11-18 12:29:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 12:29:28,423 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,441 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-11-18 12:29:28,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 63 states and 111 transitions. [2018-11-18 12:29:28,464 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 111 transitions. [2018-11-18 12:29:28,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 12:29:28,465 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-18 12:29:28,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 66 states and 116 transitions. [2018-11-18 12:29:28,650 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 116 transitions. [2018-11-18 12:29:28,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 12:29:28,651 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 13 proven. 23 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 12:29:28,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 66 states and 114 transitions. [2018-11-18 12:29:28,816 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2018-11-18 12:29:28,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 12:29:28,817 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 13 proven. 24 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-11-18 12:29:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 61 states and 107 transitions. [2018-11-18 12:29:28,991 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 107 transitions. [2018-11-18 12:29:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 12:29:28,992 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:29,009 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 12 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-18 12:29:29,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 69 states and 122 transitions. [2018-11-18 12:29:29,232 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 122 transitions. [2018-11-18 12:29:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-18 12:29:29,233 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:29,286 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-18 12:29:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:29,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 69 states and 121 transitions. [2018-11-18 12:29:29,555 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 121 transitions. [2018-11-18 12:29:29,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 12:29:29,556 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 15 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-18 12:29:29,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 54 states and 94 transitions. [2018-11-18 12:29:29,729 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 94 transitions. [2018-11-18 12:29:29,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-18 12:29:29,729 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 17 proven. 35 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-18 12:29:29,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 54 states and 93 transitions. [2018-11-18 12:29:29,872 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 93 transitions. [2018-11-18 12:29:29,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 12:29:29,873 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 16 proven. 44 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-11-18 12:29:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:30,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 54 states and 92 transitions. [2018-11-18 12:29:30,025 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 92 transitions. [2018-11-18 12:29:30,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-18 12:29:30,026 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:30,043 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 43 proven. 4 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2018-11-18 12:29:30,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 57 states and 95 transitions. [2018-11-18 12:29:30,102 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 95 transitions. [2018-11-18 12:29:30,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-18 12:29:30,103 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-11-18 12:29:30,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 61 states and 101 transitions. [2018-11-18 12:29:30,161 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 101 transitions. [2018-11-18 12:29:30,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 12:29:30,162 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 23 proven. 34 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-11-18 12:29:30,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 61 states and 100 transitions. [2018-11-18 12:29:30,500 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 100 transitions. [2018-11-18 12:29:30,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-18 12:29:30,501 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:30,580 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 25 proven. 62 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2018-11-18 12:29:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:31,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 64 states and 104 transitions. [2018-11-18 12:29:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 104 transitions. [2018-11-18 12:29:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-18 12:29:31,030 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:31,103 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 25 proven. 37 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-11-18 12:29:31,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 72 states and 120 transitions. [2018-11-18 12:29:31,831 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 120 transitions. [2018-11-18 12:29:31,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-18 12:29:31,832 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 52 proven. 44 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-18 12:29:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:32,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 73 states and 124 transitions. [2018-11-18 12:29:32,022 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 124 transitions. [2018-11-18 12:29:32,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-18 12:29:32,023 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 51 proven. 16 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2018-11-18 12:29:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 74 states and 125 transitions. [2018-11-18 12:29:32,314 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 125 transitions. [2018-11-18 12:29:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-18 12:29:32,314 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 52 proven. 56 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2018-11-18 12:29:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:32,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 78 states and 133 transitions. [2018-11-18 12:29:32,679 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 133 transitions. [2018-11-18 12:29:32,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-18 12:29:32,680 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 29 proven. 43 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2018-11-18 12:29:32,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 79 states and 135 transitions. [2018-11-18 12:29:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 135 transitions. [2018-11-18 12:29:32,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-11-18 12:29:32,721 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 33 proven. 86 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2018-11-18 12:29:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:33,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 81 states and 139 transitions. [2018-11-18 12:29:33,212 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 139 transitions. [2018-11-18 12:29:33,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-18 12:29:33,213 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:33,271 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 80 proven. 68 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2018-11-18 12:29:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:33,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 88 states and 152 transitions. [2018-11-18 12:29:33,837 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 152 transitions. [2018-11-18 12:29:33,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-11-18 12:29:33,838 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:29:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 95 proven. 56 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2018-11-18 12:29:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:29:33,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 59 states and 98 transitions. [2018-11-18 12:29:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 98 transitions. [2018-11-18 12:29:33,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:29:33,941 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2018-11-18 12:29:33,947 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 12:29:34,161 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 12:29:34,163 INFO L579 CodeCheckObserver]: Invariant with dag size 7 [2018-11-18 12:29:34,167 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 12:29:34,167 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 12:29:34,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 12:29:34 ImpRootNode [2018-11-18 12:29:34,167 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 12:29:34,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:29:34,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:29:34,168 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:29:34,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:29:27" (3/4) ... [2018-11-18 12:29:34,171 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:29:34,175 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 12:29:34,178 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-18 12:29:34,179 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:29:34,179 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 12:29:34,223 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6d829856-9974-4f44-a8a2-0fec5aa2889a/bin-2019/ukojak/witness.graphml [2018-11-18 12:29:34,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:29:34,223 INFO L168 Benchmark]: Toolchain (without parser) took 7621.01 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 263.7 MB). Free memory was 957.1 MB in the beginning and 1.2 GB in the end (delta: -259.6 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:34,225 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:29:34,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:34,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.07 ms. Allocated memory is still 1.0 GB. Free memory was 946.4 MB in the beginning and 943.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:34,226 INFO L168 Benchmark]: Boogie Preprocessor took 13.97 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:34,226 INFO L168 Benchmark]: RCFGBuilder took 264.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:34,226 INFO L168 Benchmark]: CodeCheck took 7092.41 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 126.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -112.3 MB). Peak memory consumption was 338.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:34,226 INFO L168 Benchmark]: Witness Printer took 55.22 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:34,228 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 51 locations, 1 error locations. SAFE Result, 6.8s OverallTime, 32 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 201816064 SDtfs, -645840312 SDslu, -1700497268 SDs, 0 SdLazy, 268166716 SolverSat, 1850574804 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14540 GetRequests, 14189 SyntacticMatches, 173 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15134 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1943 NumberOfCodeBlocks, 1943 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1912 ConstructedInterpolants, 0 QuantifiedInterpolants, 271156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 3 PerfectInterpolantSequences, 5318/6095 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 <= urilen || urilen < cp + 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.07 ms. Allocated memory is still 1.0 GB. Free memory was 946.4 MB in the beginning and 943.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.97 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 264.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * CodeCheck took 7092.41 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 126.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -112.3 MB). Peak memory consumption was 338.4 MB. Max. memory is 11.5 GB. * Witness Printer took 55.22 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...