./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.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_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/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 0036602275d14d2f63e3aedc245d67d50c1210f9 .......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:45:07,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:45:07,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:45:07,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:45:07,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:45:07,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:45:07,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:45:07,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:45:07,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:45:07,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:45:07,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:45:07,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:45:07,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:45:07,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:45:07,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:45:07,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:45:07,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:45:07,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:45:07,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:45:07,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:45:07,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:45:07,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:45:07,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:45:07,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:45:07,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:45:07,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:45:07,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:45:07,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:45:07,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:45:07,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:45:07,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:45:07,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:45:07,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:45:07,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:45:07,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:45:07,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:45:07,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:45:07,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:45:07,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:45:07,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:45:07,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:45:07,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 19:45:07,286 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:45:07,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:45:07,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 19:45:07,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 19:45:07,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:45:07,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:45:07,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:45:07,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:45:07,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:45:07,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:45:07,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:45:07,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:45:07,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:45:07,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:45:07,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:45:07,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:45:07,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:45:07,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:45:07,294 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:45:07,294 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:45:07,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:45:07,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:45:07,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:45:07,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:45:07,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:45:07,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:45:07,296 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:45:07,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:45:07,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:45:07,297 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_c73088c2-4dbd-46ea-b77f-23681406dc87/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0036602275d14d2f63e3aedc245d67d50c1210f9 [2020-11-29 19:45:07,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:45:07,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:45:07,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:45:07,642 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:45:07,643 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:45:07,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2020-11-29 19:45:07,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/data/e02bfac46/65a6e2e8f69842e088df53801eaba98f/FLAGe5bf00a1e [2020-11-29 19:45:08,475 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:45:08,476 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2020-11-29 19:45:08,491 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/data/e02bfac46/65a6e2e8f69842e088df53801eaba98f/FLAGe5bf00a1e [2020-11-29 19:45:08,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/data/e02bfac46/65a6e2e8f69842e088df53801eaba98f [2020-11-29 19:45:08,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:45:08,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:45:08,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:45:08,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:45:08,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:45:08,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:45:08" (1/1) ... [2020-11-29 19:45:08,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4d5a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:08, skipping insertion in model container [2020-11-29 19:45:08,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:45:08" (1/1) ... [2020-11-29 19:45:08,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:45:08,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:45:09,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:45:09,140 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:45:09,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:45:09,182 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:45:09,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09 WrapperNode [2020-11-29 19:45:09,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:45:09,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:45:09,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:45:09,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:45:09,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:45:09,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:45:09,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:45:09,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:45:09,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:45:09,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:45:09,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:45:09,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:45:09,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:45:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/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 [2020-11-29 19:45:09,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:45:09,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:45:09,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:45:09,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:45:09,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-29 19:45:09,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-29 19:45:09,812 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:45:09,812 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-29 19:45:09,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:45:09 BoogieIcfgContainer [2020-11-29 19:45:09,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:45:09,817 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:45:09,817 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:45:09,831 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:45:09,831 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:45:09" (1/1) ... [2020-11-29 19:45:09,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:45:09,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2020-11-29 19:45:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2020-11-29 19:45:09,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:45:09,930 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:45:10,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2020-11-29 19:45:10,165 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2020-11-29 19:45:10,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:45:10,165 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:45:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-11-29 19:45:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-11-29 19:45:10,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:45:10,387 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:45:11,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2020-11-29 19:45:11,043 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2020-11-29 19:45:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 19:45:11,058 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:11,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:45:11,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:45:12,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:12,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 49 transitions. [2020-11-29 19:45:12,097 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 49 transitions. [2020-11-29 19:45:12,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:45:12,098 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:12,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:45:12,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 19:45:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:12,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 54 transitions. [2020-11-29 19:45:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2020-11-29 19:45:12,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:45:12,470 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:12,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:45:12,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:12,577 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 19:45:12,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:12,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 63 transitions. [2020-11-29 19:45:12,797 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2020-11-29 19:45:12,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:45:12,799 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:12,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:45:12,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:13,057 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 19:45:14,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 44 states and 100 transitions. [2020-11-29 19:45:14,782 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 100 transitions. [2020-11-29 19:45:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:45:14,784 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:14,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 19:45:14,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:14,949 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 19:45:15,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 47 states and 107 transitions. [2020-11-29 19:45:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 107 transitions. [2020-11-29 19:45:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:45:15,754 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:15,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 19:45:15,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 19:45:16,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 49 states and 108 transitions. [2020-11-29 19:45:16,487 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 108 transitions. [2020-11-29 19:45:16,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 19:45:16,488 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:16,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 19:45:16,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 19:45:17,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:17,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 52 states and 119 transitions. [2020-11-29 19:45:17,556 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 119 transitions. [2020-11-29 19:45:17,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 19:45:17,557 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:17,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 19:45:17,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:17,809 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-29 19:45:19,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:19,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 56 states and 132 transitions. [2020-11-29 19:45:19,672 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 132 transitions. [2020-11-29 19:45:19,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 19:45:19,674 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:19,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 19:45:19,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-29 19:45:21,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:21,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 58 states and 133 transitions. [2020-11-29 19:45:21,199 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 133 transitions. [2020-11-29 19:45:21,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 19:45:21,201 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:21,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 19:45:21,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:21,529 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:45:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-29 19:45:24,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:24,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 60 states and 139 transitions. [2020-11-29 19:45:24,619 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 139 transitions. [2020-11-29 19:45:24,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-29 19:45:24,621 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:24,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 19:45:24,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-29 19:45:26,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:26,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 62 states and 149 transitions. [2020-11-29 19:45:26,454 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 149 transitions. [2020-11-29 19:45:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-29 19:45:26,458 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:26,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 19:45:26,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-11-29 19:45:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 65 states and 166 transitions. [2020-11-29 19:45:42,116 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 166 transitions. [2020-11-29 19:45:42,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-29 19:45:42,117 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:42,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:45:42,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-29 19:45:53,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:45:53,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 77 states and 227 transitions. [2020-11-29 19:45:53,741 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 227 transitions. [2020-11-29 19:45:53,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-29 19:45:53,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:45:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:45:53,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 19:45:53,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:45:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-11-29 19:46:00,276 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-11-29 19:46:05,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:46:05,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 80 states and 239 transitions. [2020-11-29 19:46:05,463 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 239 transitions. [2020-11-29 19:46:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-29 19:46:05,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:46:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:46:05,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 19:46:05,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:46:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-29 19:46:09,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:46:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 39 states and 73 transitions. [2020-11-29 19:46:09,758 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 73 transitions. [2020-11-29 19:46:09,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-29 19:46:09,759 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:46:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:46:09,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 19:46:09,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:46:09,876 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-11-29 19:46:12,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:46:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 39 states and 70 transitions. [2020-11-29 19:46:12,615 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 70 transitions. [2020-11-29 19:46:12,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-29 19:46:12,617 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:46:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:46:12,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 19:46:12,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:46:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-29 19:46:16,888 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2020-11-29 19:46:21,234 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2020-11-29 19:46:26,250 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2020-11-29 19:46:30,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:46:30,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 34 states and 63 transitions. [2020-11-29 19:46:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2020-11-29 19:46:30,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:46:30,627 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 21 iterations. [2020-11-29 19:46:30,636 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 19:46:30,818 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 1 [2020-11-29 19:46:31,080 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 1 [2020-11-29 19:46:32,118 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2020-11-29 19:46:32,231 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 1 [2020-11-29 19:46:32,345 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 1 [2020-11-29 19:46:32,457 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 1 [2020-11-29 19:46:32,574 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 19:46:32,579 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 19:46:32,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:46:32 ImpRootNode [2020-11-29 19:46:32,580 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:46:32,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:46:32,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:46:32,581 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:46:32,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:45:09" (3/4) ... [2020-11-29 19:46:32,586 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:46:32,618 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-29 19:46:32,623 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 19:46:32,624 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:46:32,624 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 19:46:32,624 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:46:32,709 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c73088c2-4dbd-46ea-b77f-23681406dc87/bin/ukojak/witness.graphml [2020-11-29 19:46:32,714 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:46:32,715 INFO L168 Benchmark]: Toolchain (without parser) took 83899.34 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 61.8 MB in the beginning and 46.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 85.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:32,716 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 50.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:46:32,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.31 ms. Allocated memory is still 90.2 MB. Free memory was 61.6 MB in the beginning and 67.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:32,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.81 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 65.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:32,723 INFO L168 Benchmark]: Boogie Preprocessor took 27.65 ms. Allocated memory is still 90.2 MB. Free memory was 65.9 MB in the beginning and 64.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:46:32,724 INFO L168 Benchmark]: RCFGBuilder took 558.39 ms. Allocated memory is still 90.2 MB. Free memory was 64.6 MB in the beginning and 50.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:32,724 INFO L168 Benchmark]: CodeCheck took 82763.58 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 50.9 MB in the beginning and 48.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:32,726 INFO L168 Benchmark]: Witness Printer took 133.21 ms. Allocated memory is still 159.4 MB. Free memory was 48.3 MB in the beginning and 46.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:46:32,729 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, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 80.7s, OverallIterations: 21, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11257984 SDtfs, 168264 SDslu, 1180128 SDs, 0 SdLazy, 18839376 SolverSat, 7035848 SolverUnsat, 64 SolverUnknown, 0 SolverNotchecked, 136.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6272 GetRequests, 5872 SyntacticMatches, 186 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22627 ImplicationChecksByTransitivity, 49.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 567 NumberOfCodeBlocks, 567 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 547 ConstructedInterpolants, 0 QuantifiedInterpolants, 65291 SizeOfPredicates, 39 NumberOfNonLiveVariables, 1807 ConjunctsInSsa, 183 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 767/839 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 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 50.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.31 ms. Allocated memory is still 90.2 MB. Free memory was 61.6 MB in the beginning and 67.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.81 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 65.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.65 ms. Allocated memory is still 90.2 MB. Free memory was 65.9 MB in the beginning and 64.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 558.39 ms. Allocated memory is still 90.2 MB. Free memory was 64.6 MB in the beginning and 50.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 82763.58 ms. Allocated memory was 90.2 MB in the beginning and 159.4 MB in the end (delta: 69.2 MB). Free memory was 50.9 MB in the beginning and 48.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 73.8 MB. Max. memory is 16.1 GB. * Witness Printer took 133.21 ms. Allocated memory is still 159.4 MB. Free memory was 48.3 MB in the beginning and 46.2 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...