./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-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_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/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 ab746bf4a089e72e80f9c298a9407c6c1a5ad2bd ............................................................................................................................................................................................................................................................................................................. 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 04:42:46,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:42:46,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:42:46,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:42:46,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:42:46,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:42:46,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:42:46,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:42:46,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:42:46,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:42:46,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:42:46,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:42:46,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:42:46,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:42:46,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:42:46,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:42:46,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:42:46,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:42:46,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:42:46,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:42:46,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:42:46,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:42:46,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:42:46,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:42:46,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:42:46,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:42:46,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:42:46,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:42:46,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:42:46,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:42:46,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:42:46,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:42:46,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:42:46,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:42:46,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:42:46,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:42:46,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:42:46,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:42:46,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:42:46,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:42:46,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:42:46,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:42:46,947 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:42:46,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:42:46,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:42:46,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:42:46,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:42:46,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:42:46,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:42:46,950 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:42:46,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:42:46,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:42:46,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:42:46,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:42:46,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:42:46,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:42:46,953 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:42:46,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:42:46,953 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:42:46,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:42:46,954 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:42:46,954 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:42:46,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:42:46,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:42:46,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:42:46,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:42:46,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:42:46,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:42:46,963 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:42:46,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:42:46,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:42:46,964 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_f087cc31-787a-4cf1-ad79-9cdca4924272/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab746bf4a089e72e80f9c298a9407c6c1a5ad2bd [2020-11-28 04:42:47,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:42:47,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:42:47,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:42:47,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:42:47,277 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:42:47,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound2.c [2020-11-28 04:42:47,339 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/data/4311eb2e0/3e9232f972794dff9e98cc9a07cd2757/FLAGf82dbaa45 [2020-11-28 04:42:47,780 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:42:47,781 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound2.c [2020-11-28 04:42:47,787 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/data/4311eb2e0/3e9232f972794dff9e98cc9a07cd2757/FLAGf82dbaa45 [2020-11-28 04:42:47,803 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/data/4311eb2e0/3e9232f972794dff9e98cc9a07cd2757 [2020-11-28 04:42:47,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:42:47,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:42:47,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:47,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:42:47,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:42:47,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310ff39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47, skipping insertion in model container [2020-11-28 04:42:47,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:42:47,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:42:48,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:48,024 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:42:48,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:48,056 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:42:48,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48 WrapperNode [2020-11-28 04:42:48,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:48,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:48,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:42:48,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:42:48,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:48,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:42:48,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:42:48,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:42:48,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:42:48,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:42:48,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:42:48,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:42:48,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/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 04:42:48,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:42:48,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:42:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:42:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:42:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:42:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:42:48,576 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:42:48,576 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:42:48,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:48 BoogieIcfgContainer [2020-11-28 04:42:48,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:42:48,580 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:42:48,580 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:42:48,590 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:42:48,590 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:42:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-28 04:42:48,638 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-28 04:42:48,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:42:48,643 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:48,760 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 04:42:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:48,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:42:48,768 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:42:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:42:48,769 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:48,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:42:48,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:48,922 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 04:42:48,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:48,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2020-11-28 04:42:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2020-11-28 04:42:48,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:42:48,979 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:49,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:42:49,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:49,100 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 04:42:49,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:49,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2020-11-28 04:42:49,487 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2020-11-28 04:42:49,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:42:49,489 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:49,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:42:49,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:49,695 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 04:42:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:50,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:50,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2020-11-28 04:42:50,584 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2020-11-28 04:42:50,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:42:50,585 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:50,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:42:50,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:52,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 33 states and 52 transitions. [2020-11-28 04:42:52,437 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2020-11-28 04:42:52,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:42:52,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:52,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:42:52,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:42:52,559 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:52,890 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2020-11-28 04:43:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 37 states and 62 transitions. [2020-11-28 04:43:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 62 transitions. [2020-11-28 04:43:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:43:05,296 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:05,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 04:43:05,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:07,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:07,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 39 states and 63 transitions. [2020-11-28 04:43:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 63 transitions. [2020-11-28 04:43:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:43:07,068 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:07,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-28 04:43:07,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:43:19,956 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2020-11-28 04:43:22,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:22,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 42 states and 67 transitions. [2020-11-28 04:43:22,883 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 67 transitions. [2020-11-28 04:43:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:43:22,884 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:22,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:43:22,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:26,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 51 states and 85 transitions. [2020-11-28 04:43:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 85 transitions. [2020-11-28 04:43:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:43:26,795 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:26,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 04:43:26,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:43:26,878 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:27,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:27,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 26 states and 31 transitions. [2020-11-28 04:43:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-11-28 04:43:27,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:43:27,257 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2020-11-28 04:43:27,262 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:43:27,472 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 25 [2020-11-28 04:43:27,626 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:43:27,629 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:43:27,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:27 ImpRootNode [2020-11-28 04:43:27,630 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:27,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:27,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:27,631 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:27,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:48" (3/4) ... [2020-11-28 04:43:27,634 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:43:27,639 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:43:27,653 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 04:43:27,653 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:43:27,653 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:43:27,654 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:43:27,701 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f087cc31-787a-4cf1-ad79-9cdca4924272/bin/ukojak/witness.graphml [2020-11-28 04:43:27,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:27,704 INFO L168 Benchmark]: Toolchain (without parser) took 39895.99 ms. Allocated memory was 83.9 MB in the beginning and 151.0 MB in the end (delta: 67.1 MB). Free memory was 45.3 MB in the beginning and 105.7 MB in the end (delta: -60.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:27,706 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:27,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.86 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 45.0 MB in the beginning and 72.3 MB in the end (delta: -27.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:27,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.38 ms. Allocated memory is still 100.7 MB. Free memory was 72.3 MB in the beginning and 70.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:27,708 INFO L168 Benchmark]: Boogie Preprocessor took 21.28 ms. Allocated memory is still 100.7 MB. Free memory was 70.8 MB in the beginning and 69.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:27,708 INFO L168 Benchmark]: RCFGBuilder took 463.95 ms. Allocated memory is still 100.7 MB. Free memory was 69.7 MB in the beginning and 56.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:27,709 INFO L168 Benchmark]: CodeCheck took 39050.30 ms. Allocated memory was 100.7 MB in the beginning and 151.0 MB in the end (delta: 50.3 MB). Free memory was 56.2 MB in the beginning and 108.8 MB in the end (delta: -52.5 MB). Peak memory consumption was 65.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:27,711 INFO L168 Benchmark]: Witness Printer took 72.56 ms. Allocated memory is still 151.0 MB. Free memory was 108.8 MB in the beginning and 105.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:27,715 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, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.6s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7680 SDtfs, 1048 SDslu, 2024 SDs, 0 SdLazy, 19046 SolverSat, 7766 SolverUnsat, 32 SolverUnknown, 0 SolverNotchecked, 56.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1423 GetRequests, 1231 SyntacticMatches, 58 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7384 ImplicationChecksByTransitivity, 25.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 8837 SizeOfPredicates, 17 NumberOfNonLiveVariables, 694 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 46/68 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: 3]: 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: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.86 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 45.0 MB in the beginning and 72.3 MB in the end (delta: -27.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.38 ms. Allocated memory is still 100.7 MB. Free memory was 72.3 MB in the beginning and 70.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.28 ms. Allocated memory is still 100.7 MB. Free memory was 70.8 MB in the beginning and 69.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 463.95 ms. Allocated memory is still 100.7 MB. Free memory was 69.7 MB in the beginning and 56.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 39050.30 ms. Allocated memory was 100.7 MB in the beginning and 151.0 MB in the end (delta: 50.3 MB). Free memory was 56.2 MB in the beginning and 108.8 MB in the end (delta: -52.5 MB). Peak memory consumption was 65.8 MB. Max. memory is 16.1 GB. * Witness Printer took 72.56 ms. Allocated memory is still 151.0 MB. Free memory was 108.8 MB in the beginning and 105.7 MB in the end (delta: 3.1 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...