./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.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_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/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 e2ed99b30ac1df5d31daa869d277589d2838cb93 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:43:46,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:46,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:46,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:46,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:46,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:46,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:46,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:46,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:46,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:46,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:46,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:46,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:46,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:46,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:46,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:46,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:46,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:46,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:46,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:46,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:46,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:46,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:46,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:46,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:46,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:46,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:46,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:46,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:46,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:46,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:46,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:46,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:46,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:46,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:46,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:46,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:46,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:46,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:46,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:46,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:46,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:43:46,340 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:46,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:46,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:43:46,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:43:46,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:46,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:46,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:46,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:43:46,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:46,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:43:46,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:46,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:43:46,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:46,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:43:46,344 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:43:46,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:43:46,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:46,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:43:46,345 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:46,345 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:46,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:46,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:46,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:46,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:46,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:46,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:43:46,347 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:46,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:46,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:43:46,347 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_479efb72-1647-4ede-8cbb-1afdeac7f257/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2ed99b30ac1df5d31daa869d277589d2838cb93 [2020-11-28 04:43:46,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:46,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:46,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:46,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:46,661 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:46,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2020-11-28 04:43:46,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/data/0afd93735/473c188a8afc4fc0b486ca019ed8650c/FLAGa1f110145 [2020-11-28 04:43:47,125 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:47,126 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2020-11-28 04:43:47,134 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/data/0afd93735/473c188a8afc4fc0b486ca019ed8650c/FLAGa1f110145 [2020-11-28 04:43:47,537 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/data/0afd93735/473c188a8afc4fc0b486ca019ed8650c [2020-11-28 04:43:47,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:47,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:47,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:47,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:47,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:47,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60179348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47, skipping insertion in model container [2020-11-28 04:43:47,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:47,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:47,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:47,761 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:47,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:47,792 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:47,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47 WrapperNode [2020-11-28 04:43:47,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:47,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:47,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:47,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:47,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:47,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:47,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:47,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:47,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:47,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:47,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:47,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:47,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/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 [2020-11-28 04:43:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:43:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:43:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:47,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:43:47,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:43:48,286 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:48,287 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:43:48,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:48 BoogieIcfgContainer [2020-11-28 04:43:48,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:48,290 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:48,290 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:48,300 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:48,301 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:48" (1/1) ... [2020-11-28 04:43:48,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2020-11-28 04:43:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2020-11-28 04:43:48,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:43:48,345 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:48,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:48,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2020-11-28 04:43:48,464 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2020-11-28 04:43:48,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:43:48,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:48,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:48,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:48,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2020-11-28 04:43:48,714 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2020-11-28 04:43:48,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:43:48,718 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:48,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:43:48,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:49,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2020-11-28 04:43:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2020-11-28 04:43:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:43:49,136 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:49,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:43:49,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:49,208 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:43:49,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:49,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2020-11-28 04:43:49,308 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2020-11-28 04:43:49,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 04:43:49,310 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:49,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:43:49,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:49,367 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:43:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:49,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 29 states and 52 transitions. [2020-11-28 04:43:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 52 transitions. [2020-11-28 04:43:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:43:49,492 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:49,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:43:49,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:43:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 31 states and 55 transitions. [2020-11-28 04:43:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 55 transitions. [2020-11-28 04:43:49,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:43:49,728 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:49,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:43:49,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-28 04:43:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:50,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 60 transitions. [2020-11-28 04:43:50,220 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2020-11-28 04:43:50,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 04:43:50,221 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:50,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 04:43:50,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-28 04:43:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 37 states and 66 transitions. [2020-11-28 04:43:50,724 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2020-11-28 04:43:50,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 04:43:50,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:50,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:43:50,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:50,894 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:43:50,926 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-28 04:43:51,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:51,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 69 transitions. [2020-11-28 04:43:51,519 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 69 transitions. [2020-11-28 04:43:51,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 04:43:51,521 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:51,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:43:51,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-28 04:43:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:52,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 41 states and 74 transitions. [2020-11-28 04:43:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2020-11-28 04:43:52,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-28 04:43:52,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:52,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:43:52,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:52,109 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-11-28 04:43:53,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 44 states and 82 transitions. [2020-11-28 04:43:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 82 transitions. [2020-11-28 04:43:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-28 04:43:53,074 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:53,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 04:43:53,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-11-28 04:43:53,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:53,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 46 states and 85 transitions. [2020-11-28 04:43:53,607 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 85 transitions. [2020-11-28 04:43:53,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-28 04:43:53,608 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:53,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:43:53,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-28 04:43:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:53,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 48 states and 88 transitions. [2020-11-28 04:43:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 88 transitions. [2020-11-28 04:43:53,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-28 04:43:53,828 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:53,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-28 04:43:53,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:54,106 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-28 04:43:54,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:54,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 51 states and 94 transitions. [2020-11-28 04:43:54,965 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 94 transitions. [2020-11-28 04:43:54,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-28 04:43:54,966 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:55,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 04:43:55,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-11-28 04:43:56,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 53 states and 99 transitions. [2020-11-28 04:43:56,060 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 99 transitions. [2020-11-28 04:43:56,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-28 04:43:56,061 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:56,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 04:43:56,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:56,256 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-11-28 04:43:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:56,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 56 states and 107 transitions. [2020-11-28 04:43:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 107 transitions. [2020-11-28 04:43:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-28 04:43:56,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:56,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-28 04:43:56,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-11-28 04:43:57,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:57,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 58 states and 110 transitions. [2020-11-28 04:43:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 110 transitions. [2020-11-28 04:43:57,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-28 04:43:57,753 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:57,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:43:57,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-11-28 04:43:58,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 60 states and 113 transitions. [2020-11-28 04:43:58,144 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 113 transitions. [2020-11-28 04:43:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-28 04:43:58,145 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:58,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 27 conjunts are in the unsatisfiable core [2020-11-28 04:43:58,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-11-28 04:44:00,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:00,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 63 states and 119 transitions. [2020-11-28 04:44:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 119 transitions. [2020-11-28 04:44:00,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-11-28 04:44:00,205 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:00,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-28 04:44:00,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:00,825 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 27 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-11-28 04:44:03,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 65 states and 124 transitions. [2020-11-28 04:44:03,121 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 124 transitions. [2020-11-28 04:44:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-28 04:44:03,122 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:03,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-28 04:44:03,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 24 proven. 30 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-11-28 04:44:05,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:05,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 68 states and 132 transitions. [2020-11-28 04:44:05,221 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 132 transitions. [2020-11-28 04:44:05,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-11-28 04:44:05,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:05,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 23 conjunts are in the unsatisfiable core [2020-11-28 04:44:05,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 24 proven. 38 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-11-28 04:44:07,046 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-11-28 04:44:08,064 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-11-28 04:44:08,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:08,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 70 states and 135 transitions. [2020-11-28 04:44:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 135 transitions. [2020-11-28 04:44:08,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-28 04:44:08,290 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:08,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:44:08,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:08,387 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2020-11-28 04:44:09,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:09,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 72 states and 138 transitions. [2020-11-28 04:44:09,670 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 138 transitions. [2020-11-28 04:44:09,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-28 04:44:09,672 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:09,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-28 04:44:09,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:44:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 99 proven. 15 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-11-28 04:44:12,441 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-11-28 04:44:13,072 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2020-11-28 04:44:15,017 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2020-11-28 04:44:15,958 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2020-11-28 04:44:18,718 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2020-11-28 04:44:19,927 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2020-11-28 04:44:21,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:21,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 33 states and 52 transitions. [2020-11-28 04:44:21,360 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2020-11-28 04:44:21,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:44:21,361 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2020-11-28 04:44:21,367 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:44:21,500 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 1 [2020-11-28 04:44:21,777 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 1 [2020-11-28 04:44:21,975 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 1 [2020-11-28 04:44:22,247 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 1 [2020-11-28 04:44:22,548 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 1 [2020-11-28 04:44:22,782 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 1 [2020-11-28 04:44:22,815 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:22,819 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:22,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:22 ImpRootNode [2020-11-28 04:44:22,819 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:22,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:22,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:22,821 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:22,822 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:48" (3/4) ... [2020-11-28 04:44:22,825 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:44:22,832 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:44:22,836 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-28 04:44:22,836 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:44:22,837 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:44:22,837 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:44:22,886 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_479efb72-1647-4ede-8cbb-1afdeac7f257/bin/ukojak/witness.graphml [2020-11-28 04:44:22,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:22,887 INFO L168 Benchmark]: Toolchain (without parser) took 35345.85 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 60.6 MB in the beginning and 121.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:22,888 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 46.6 MB in the beginning and 46.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:22,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.80 ms. Allocated memory is still 90.2 MB. Free memory was 60.4 MB in the beginning and 68.0 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:22,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.27 ms. Allocated memory is still 90.2 MB. Free memory was 68.0 MB in the beginning and 66.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:22,890 INFO L168 Benchmark]: Boogie Preprocessor took 20.31 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 65.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:22,890 INFO L168 Benchmark]: RCFGBuilder took 441.04 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 49.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:22,891 INFO L168 Benchmark]: CodeCheck took 34529.44 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 49.2 MB in the beginning and 124.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:22,892 INFO L168 Benchmark]: Witness Printer took 66.34 ms. Allocated memory is still 159.4 MB. Free memory was 124.0 MB in the beginning and 121.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:22,905 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 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 33.0s, OverallIterations: 25, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 229900288 SDtfs, 29161416 SDslu, 38382976 SDs, 0 SdLazy, 286150328 SolverSat, 90320216 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7765 GetRequests, 7381 SyntacticMatches, 258 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8948 ImplicationChecksByTransitivity, 26.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 1029 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1005 ConstructedInterpolants, 0 QuantifiedInterpolants, 188277 SizeOfPredicates, 54 NumberOfNonLiveVariables, 2941 ConjunctsInSsa, 311 ConjunctsInUnsatCore, 24 InterpolantComputations, 5 PerfectInterpolantSequences, 2938/3190 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: 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: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 46.6 MB in the beginning and 46.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.80 ms. Allocated memory is still 90.2 MB. Free memory was 60.4 MB in the beginning and 68.0 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.27 ms. Allocated memory is still 90.2 MB. Free memory was 68.0 MB in the beginning and 66.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.31 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 65.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 441.04 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 49.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 34529.44 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 49.2 MB in the beginning and 124.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.1 GB. * Witness Printer took 66.34 ms. Allocated memory is still 159.4 MB. Free memory was 124.0 MB in the beginning and 121.9 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...