./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-simple/nested_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93ddc895418216afe230ea40e87acd63de5c2d0d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:46:18,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:46:18,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:46:18,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:46:18,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:46:18,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:46:18,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:46:18,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:46:18,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:46:18,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:46:18,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:46:18,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:46:18,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:46:18,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:46:18,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:46:18,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:46:18,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:46:18,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:46:18,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:46:18,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:46:18,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:46:18,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:46:18,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:46:18,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:46:18,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:46:18,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:46:18,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:46:18,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:46:18,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:46:18,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:46:18,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:46:18,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:46:18,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:46:18,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:46:18,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:46:18,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:46:18,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:46:18,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:46:18,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:46:18,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:46:18,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:46:18,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-30 00:46:18,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:46:18,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:46:18,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:46:18,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:46:18,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:46:18,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:46:18,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:46:18,826 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:46:18,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:46:18,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:46:18,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:46:18,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:46:18,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:46:18,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:46:18,829 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:46:18,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:46:18,829 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:46:18,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:46:18,830 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:46:18,830 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:46:18,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:46:18,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:46:18,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:46:18,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:46:18,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:46:18,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:46:18,833 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:46:18,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:46:18,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:46:18,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ddc895418216afe230ea40e87acd63de5c2d0d [2020-11-30 00:46:19,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:46:19,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:46:19,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:46:19,254 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:46:19,255 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:46:19,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/../../sv-benchmarks/c/loop-simple/nested_2.c [2020-11-30 00:46:19,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/data/6f0fa4618/344c6fa7cbbc4cfd91e2c71fa0cc3dbc/FLAGfd467a196 [2020-11-30 00:46:20,024 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:46:20,026 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/sv-benchmarks/c/loop-simple/nested_2.c [2020-11-30 00:46:20,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/data/6f0fa4618/344c6fa7cbbc4cfd91e2c71fa0cc3dbc/FLAGfd467a196 [2020-11-30 00:46:20,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/data/6f0fa4618/344c6fa7cbbc4cfd91e2c71fa0cc3dbc [2020-11-30 00:46:20,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:46:20,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:46:20,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:20,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:46:20,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:46:20,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ecf364c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20, skipping insertion in model container [2020-11-30 00:46:20,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:46:20,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:46:20,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:20,712 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:46:20,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:20,755 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:46:20,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20 WrapperNode [2020-11-30 00:46:20,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:20,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:46:20,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:46:20,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:46:20,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:46:20,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:46:20,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:46:20,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:46:20,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... [2020-11-30 00:46:20,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:46:20,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:46:20,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:46:20,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:46:20,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/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 [2020-11-30 00:46:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:46:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:46:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:46:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:46:21,540 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:46:21,540 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:46:21,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:21 BoogieIcfgContainer [2020-11-30 00:46:21,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:46:21,544 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:46:21,544 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:46:21,558 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:46:21,558 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:21" (1/1) ... [2020-11-30 00:46:21,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:21,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:21,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2020-11-30 00:46:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2020-11-30 00:46:21,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:46:21,628 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:21,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-30 00:46:21,899 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-30 00:46:21,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:46:21,899 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:21,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:22,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-11-30 00:46:22,027 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-11-30 00:46:22,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:46:22,030 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:22,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:22,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-11-30 00:46:22,208 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-11-30 00:46:22,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:46:22,209 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 00:46:22,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2020-11-30 00:46:22,751 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2020-11-30 00:46:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:46:22,752 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 00:46:22,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-11-30 00:46:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-11-30 00:46:22,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:46:22,992 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:23,087 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 00:46:23,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:23,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2020-11-30 00:46:23,302 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2020-11-30 00:46:23,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:46:23,303 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 00:46:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:23,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2020-11-30 00:46:23,658 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2020-11-30 00:46:23,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:46:23,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 00:46:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2020-11-30 00:46:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2020-11-30 00:46:24,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:46:24,006 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:24,101 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-30 00:46:24,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2020-11-30 00:46:24,793 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2020-11-30 00:46:24,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:46:24,794 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:46:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:25,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2020-11-30 00:46:25,055 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2020-11-30 00:46:25,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 00:46:25,056 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:25,108 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 65 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:46:25,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:25,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2020-11-30 00:46:25,371 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2020-11-30 00:46:25,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 00:46:25,372 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:25,423 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 75 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:46:25,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2020-11-30 00:46:25,752 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-11-30 00:46:25,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-30 00:46:25,753 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:25,779 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-30 00:46:26,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2020-11-30 00:46:26,110 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-30 00:46:26,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 00:46:26,111 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-11-30 00:46:26,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:26,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2020-11-30 00:46:26,996 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-11-30 00:46:26,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 00:46:26,997 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-11-30 00:46:27,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:27,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2020-11-30 00:46:27,288 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2020-11-30 00:46:27,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-30 00:46:27,289 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-11-30 00:46:27,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 33 states and 45 transitions. [2020-11-30 00:46:27,619 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-11-30 00:46:27,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 00:46:27,620 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 133 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-11-30 00:46:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2020-11-30 00:46:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2020-11-30 00:46:27,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-30 00:46:27,973 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:28,004 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 150 proven. 15 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-11-30 00:46:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 35 states and 46 transitions. [2020-11-30 00:46:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2020-11-30 00:46:28,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 00:46:28,344 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-11-30 00:46:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2020-11-30 00:46:29,561 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-11-30 00:46:29,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-30 00:46:29,565 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 143 proven. 3 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-11-30 00:46:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2020-11-30 00:46:29,944 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2020-11-30 00:46:29,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 00:46:29,945 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 167 proven. 6 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-11-30 00:46:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2020-11-30 00:46:30,335 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-11-30 00:46:30,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-30 00:46:30,336 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:30,428 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 191 proven. 10 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-11-30 00:46:30,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:30,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 42 states and 56 transitions. [2020-11-30 00:46:30,751 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-11-30 00:46:30,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-30 00:46:30,752 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:30,815 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 215 proven. 15 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-11-30 00:46:31,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:31,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 43 states and 56 transitions. [2020-11-30 00:46:31,146 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2020-11-30 00:46:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-30 00:46:31,147 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 393 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-11-30 00:46:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:32,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 47 states and 62 transitions. [2020-11-30 00:46:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-11-30 00:46:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-30 00:46:32,369 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 187 proven. 3 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-11-30 00:46:32,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 48 states and 63 transitions. [2020-11-30 00:46:32,693 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2020-11-30 00:46:32,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-30 00:46:32,694 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 218 proven. 6 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-11-30 00:46:33,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:33,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 49 states and 64 transitions. [2020-11-30 00:46:33,056 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2020-11-30 00:46:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-30 00:46:33,056 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:33,094 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 249 proven. 10 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-11-30 00:46:33,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:33,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 50 states and 65 transitions. [2020-11-30 00:46:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2020-11-30 00:46:33,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-30 00:46:33,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 280 proven. 15 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-11-30 00:46:33,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:33,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 51 states and 65 transitions. [2020-11-30 00:46:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2020-11-30 00:46:33,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-30 00:46:33,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 111 proven. 3 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-11-30 00:46:34,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 52 states and 66 transitions. [2020-11-30 00:46:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2020-11-30 00:46:34,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-30 00:46:34,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 146 proven. 6 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-11-30 00:46:34,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:34,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 53 states and 67 transitions. [2020-11-30 00:46:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2020-11-30 00:46:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-30 00:46:34,693 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:34,721 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 181 proven. 10 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-11-30 00:46:35,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:35,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 54 states and 68 transitions. [2020-11-30 00:46:35,099 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-11-30 00:46:35,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-30 00:46:35,100 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 216 proven. 15 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-11-30 00:46:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 55 states and 68 transitions. [2020-11-30 00:46:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2020-11-30 00:46:35,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-30 00:46:35,464 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:46:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 777 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-11-30 00:46:40,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:46:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 53 states and 66 transitions. [2020-11-30 00:46:40,288 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2020-11-30 00:46:40,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:46:40,289 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 34 iterations. [2020-11-30 00:46:40,296 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-30 00:46:40,603 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 10 [2020-11-30 00:46:40,606 INFO L569 CodeCheckObserver]: Invariant with dag size 10 [2020-11-30 00:46:40,617 INFO L569 CodeCheckObserver]: Invariant with dag size 10 [2020-11-30 00:46:40,618 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-30 00:46:40,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:46:40 ImpRootNode [2020-11-30 00:46:40,619 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:46:40,620 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:46:40,620 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:46:40,620 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:46:40,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:21" (3/4) ... [2020-11-30 00:46:40,625 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:46:40,636 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-30 00:46:40,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 00:46:40,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 00:46:40,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:46:40,687 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cb212ee2-2613-46bd-81ec-c98195213bf6/bin/ukojak/witness.graphml [2020-11-30 00:46:40,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:46:40,689 INFO L168 Benchmark]: Toolchain (without parser) took 20296.91 ms. Allocated memory was 86.0 MB in the beginning and 295.7 MB in the end (delta: 209.7 MB). Free memory was 55.2 MB in the beginning and 129.1 MB in the end (delta: -73.9 MB). Peak memory consumption was 136.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:40,690 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 45.3 MB in the beginning and 45.3 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:46:40,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.41 ms. Allocated memory is still 86.0 MB. Free memory was 55.1 MB in the beginning and 64.8 MB in the end (delta: -9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:40,692 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.86 ms. Allocated memory is still 86.0 MB. Free memory was 64.8 MB in the beginning and 63.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:46:40,693 INFO L168 Benchmark]: Boogie Preprocessor took 21.60 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.7 MB in the end (delta: 947.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:40,694 INFO L168 Benchmark]: RCFGBuilder took 714.07 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 48.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:40,695 INFO L168 Benchmark]: CodeCheck took 19075.36 ms. Allocated memory was 86.0 MB in the beginning and 295.7 MB in the end (delta: 209.7 MB). Free memory was 48.9 MB in the beginning and 131.2 MB in the end (delta: -82.3 MB). Peak memory consumption was 129.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:40,695 INFO L168 Benchmark]: Witness Printer took 67.30 ms. Allocated memory is still 295.7 MB. Free memory was 131.2 MB in the beginning and 129.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:40,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.6s, OverallIterations: 34, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, -2078210042 SDslu, 0 SDs, 0 SdLazy, 1861863422 SolverSat, -562712484 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6911 GetRequests, 6526 SyntacticMatches, 145 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26479 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 977 NumberOfCodeBlocks, 977 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 944 ConstructedInterpolants, 0 QuantifiedInterpolants, 54681 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 2 PerfectInterpolantSequences, 8876/10593 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 13]: 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: 20]: Loop Invariant Derived loop invariant: ((a <= 6 && b <= 6) && 5 < b) || a <= 5 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: a <= 4 || (b <= 6 && a <= 5) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 45.3 MB in the beginning and 45.3 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 360.41 ms. Allocated memory is still 86.0 MB. Free memory was 55.1 MB in the beginning and 64.8 MB in the end (delta: -9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.86 ms. Allocated memory is still 86.0 MB. Free memory was 64.8 MB in the beginning and 63.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.60 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.7 MB in the end (delta: 947.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 714.07 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 48.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 19075.36 ms. Allocated memory was 86.0 MB in the beginning and 295.7 MB in the end (delta: 209.7 MB). Free memory was 48.9 MB in the beginning and 131.2 MB in the end (delta: -82.3 MB). Peak memory consumption was 129.0 MB. Max. memory is 16.1 GB. * Witness Printer took 67.30 ms. Allocated memory is still 295.7 MB. Free memory was 131.2 MB in the beginning and 129.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...