./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-simple/nested_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93ddc895418216afe230ea40e87acd63de5c2d0d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 03:59:22,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 03:59:22,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 03:59:22,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 03:59:22,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 03:59:22,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 03:59:22,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 03:59:22,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 03:59:22,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 03:59:22,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 03:59:22,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 03:59:22,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 03:59:22,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 03:59:22,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 03:59:22,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 03:59:22,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 03:59:22,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 03:59:22,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 03:59:22,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 03:59:22,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 03:59:22,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 03:59:22,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 03:59:22,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 03:59:22,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 03:59:22,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 03:59:22,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 03:59:22,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 03:59:22,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 03:59:22,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 03:59:22,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 03:59:22,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 03:59:22,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 03:59:22,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 03:59:22,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 03:59:22,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 03:59:22,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 03:59:22,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 03:59:22,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 03:59:22,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 03:59:22,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 03:59:22,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 03:59:22,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-13 03:59:22,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 03:59:22,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 03:59:22,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 03:59:22,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 03:59:22,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 03:59:22,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 03:59:22,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 03:59:22,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 03:59:22,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 03:59:22,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 03:59:22,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 03:59:22,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 03:59:22,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 03:59:22,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 03:59:22,260 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 03:59:22,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 03:59:22,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 03:59:22,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 03:59:22,261 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 03:59:22,261 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 03:59:22,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 03:59:22,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:59:22,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 03:59:22,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 03:59:22,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 03:59:22,262 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 03:59:22,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 03:59:22,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 03:59:22,263 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_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ddc895418216afe230ea40e87acd63de5c2d0d [2021-10-13 03:59:22,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 03:59:22,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 03:59:22,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 03:59:22,621 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 03:59:22,622 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 03:59:22,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/loop-simple/nested_2.c [2021-10-13 03:59:22,692 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/data/482a4d7c1/3937c8a815924b51aea442686cb90a16/FLAG7c9f7cf50 [2021-10-13 03:59:23,195 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 03:59:23,197 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/sv-benchmarks/c/loop-simple/nested_2.c [2021-10-13 03:59:23,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/data/482a4d7c1/3937c8a815924b51aea442686cb90a16/FLAG7c9f7cf50 [2021-10-13 03:59:23,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/data/482a4d7c1/3937c8a815924b51aea442686cb90a16 [2021-10-13 03:59:23,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 03:59:23,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 03:59:23,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 03:59:23,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 03:59:23,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 03:59:23,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ba7cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23, skipping insertion in model container [2021-10-13 03:59:23,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 03:59:23,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 03:59:23,768 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/sv-benchmarks/c/loop-simple/nested_2.c[730,743] [2021-10-13 03:59:23,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:59:23,782 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 03:59:23,795 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/sv-benchmarks/c/loop-simple/nested_2.c[730,743] [2021-10-13 03:59:23,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:59:23,813 INFO L208 MainTranslator]: Completed translation [2021-10-13 03:59:23,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23 WrapperNode [2021-10-13 03:59:23,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 03:59:23,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 03:59:23,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 03:59:23,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 03:59:23,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 03:59:23,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 03:59:23,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 03:59:23,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 03:59:23,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 03:59:23,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 03:59:23,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 03:59:23,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 03:59:23,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:59:23" (1/1) ... [2021-10-13 03:59:23,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:59:23,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/z3 [2021-10-13 03:59:23,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 03:59:23,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 03:59:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 03:59:23,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 03:59:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 03:59:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 03:59:24,193 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 03:59:24,193 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 03:59:24,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:59:24 BoogieIcfgContainer [2021-10-13 03:59:24,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 03:59:24,197 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 03:59:24,197 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 03:59:24,207 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 03:59:24,207 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:59:24" (1/1) ... [2021-10-13 03:59:24,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 03:59:24,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2021-10-13 03:59:24,252 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2021-10-13 03:59:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 03:59:24,254 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:24,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:59:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-10-13 03:59:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-10-13 03:59:24,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 03:59:24,558 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:24,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:24,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:59:24,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:24,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2021-10-13 03:59:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2021-10-13 03:59:24,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 03:59:24,637 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:24,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:24,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:59:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:24,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2021-10-13 03:59:24,730 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-10-13 03:59:24,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 03:59:24,731 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:24,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 03:59:25,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2021-10-13 03:59:25,017 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2021-10-13 03:59:25,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 03:59:25,018 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:25,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 03:59:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2021-10-13 03:59:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2021-10-13 03:59:25,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 03:59:25,170 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:25,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:25,258 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 03:59:25,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2021-10-13 03:59:25,388 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2021-10-13 03:59:25,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 03:59:25,389 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:25,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:25,481 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 03:59:25,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2021-10-13 03:59:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2021-10-13 03:59:25,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 03:59:25,608 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:25,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:25,704 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 03:59:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:25,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2021-10-13 03:59:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-10-13 03:59:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 03:59:25,855 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:25,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-13 03:59:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2021-10-13 03:59:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2021-10-13 03:59:26,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 03:59:26,303 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:26,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:26,364 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 03:59:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:26,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2021-10-13 03:59:26,485 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2021-10-13 03:59:26,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 03:59:26,485 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:26,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 65 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 03:59:26,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:26,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2021-10-13 03:59:26,664 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2021-10-13 03:59:26,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 03:59:26,665 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:26,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 75 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 03:59:26,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2021-10-13 03:59:26,836 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-10-13 03:59:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 03:59:26,837 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:26,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 03:59:26,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2021-10-13 03:59:26,991 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-10-13 03:59:26,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 03:59:26,991 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:26,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-13 03:59:27,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2021-10-13 03:59:27,428 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2021-10-13 03:59:27,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 03:59:27,429 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:27,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:27,455 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-10-13 03:59:27,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:27,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2021-10-13 03:59:27,582 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2021-10-13 03:59:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 03:59:27,583 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:27,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:27,609 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-10-13 03:59:27,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:27,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 33 states and 45 transitions. [2021-10-13 03:59:27,770 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2021-10-13 03:59:27,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 03:59:27,771 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:27,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:27,808 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 133 proven. 10 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-10-13 03:59:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2021-10-13 03:59:27,939 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2021-10-13 03:59:27,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 03:59:27,940 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:27,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 150 proven. 15 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-10-13 03:59:28,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:28,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 35 states and 46 transitions. [2021-10-13 03:59:28,117 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2021-10-13 03:59:28,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 03:59:28,118 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:28,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-10-13 03:59:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2021-10-13 03:59:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-10-13 03:59:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 03:59:28,655 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:28,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 143 proven. 3 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-13 03:59:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:28,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2021-10-13 03:59:28,841 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2021-10-13 03:59:28,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 03:59:28,842 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:28,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:28,871 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 167 proven. 6 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-13 03:59:29,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:29,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2021-10-13 03:59:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2021-10-13 03:59:29,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-13 03:59:29,027 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:29,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 191 proven. 10 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-13 03:59:29,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:29,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 42 states and 56 transitions. [2021-10-13 03:59:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2021-10-13 03:59:29,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 03:59:29,227 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:29,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 215 proven. 15 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-10-13 03:59:29,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:29,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 43 states and 56 transitions. [2021-10-13 03:59:29,436 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2021-10-13 03:59:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 03:59:29,437 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:29,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 393 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-10-13 03:59:30,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:30,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 47 states and 62 transitions. [2021-10-13 03:59:30,050 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2021-10-13 03:59:30,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-13 03:59:30,051 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:30,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 187 proven. 3 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-10-13 03:59:30,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 48 states and 63 transitions. [2021-10-13 03:59:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2021-10-13 03:59:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-13 03:59:30,233 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:30,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:30,274 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 218 proven. 6 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-10-13 03:59:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 49 states and 64 transitions. [2021-10-13 03:59:30,439 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2021-10-13 03:59:30,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-13 03:59:30,439 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:30,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 249 proven. 10 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-10-13 03:59:30,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:30,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 50 states and 65 transitions. [2021-10-13 03:59:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2021-10-13 03:59:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-13 03:59:30,663 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:30,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 280 proven. 15 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-10-13 03:59:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 51 states and 65 transitions. [2021-10-13 03:59:30,888 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2021-10-13 03:59:30,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-13 03:59:30,888 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:30,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:30,917 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 111 proven. 3 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2021-10-13 03:59:31,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:31,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 52 states and 66 transitions. [2021-10-13 03:59:31,061 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2021-10-13 03:59:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-13 03:59:31,061 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:31,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 146 proven. 6 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2021-10-13 03:59:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:31,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 53 states and 67 transitions. [2021-10-13 03:59:31,249 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2021-10-13 03:59:31,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-13 03:59:31,250 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:31,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:31,317 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 181 proven. 10 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2021-10-13 03:59:31,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:31,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 54 states and 68 transitions. [2021-10-13 03:59:31,478 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2021-10-13 03:59:31,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-13 03:59:31,479 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:31,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 216 proven. 15 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2021-10-13 03:59:31,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 55 states and 68 transitions. [2021-10-13 03:59:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2021-10-13 03:59:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-13 03:59:31,675 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:59:31,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:59:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:59:32,417 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 777 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-13 03:59:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:59:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 53 states and 66 transitions. [2021-10-13 03:59:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2021-10-13 03:59:34,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 03:59:34,413 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 34 iterations. [2021-10-13 03:59:34,420 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-13 03:59:34,568 INFO L565 CodeCheckObserver]: Invariant with dag size 10 [2021-10-13 03:59:34,577 INFO L565 CodeCheckObserver]: Invariant with dag size 10 [2021-10-13 03:59:34,578 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-13 03:59:34,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 03:59:34 ImpRootNode [2021-10-13 03:59:34,579 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 03:59:34,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 03:59:34,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 03:59:34,580 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 03:59:34,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:59:24" (3/4) ... [2021-10-13 03:59:34,583 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 03:59:34,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 03:59:34,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-13 03:59:34,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 03:59:34,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 03:59:34,624 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 03:59:34,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 03:59:34,625 INFO L168 Benchmark]: Toolchain (without parser) took 11036.58 ms. Allocated memory was 109.1 MB in the beginning and 209.7 MB in the end (delta: 100.7 MB). Free memory was 75.4 MB in the beginning and 124.7 MB in the end (delta: -49.3 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. [2021-10-13 03:59:34,626 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 109.1 MB. Free memory was 67.0 MB in the beginning and 67.0 MB in the end (delta: 53.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:59:34,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.46 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 75.1 MB in the beginning and 118.7 MB in the end (delta: -43.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:59:34,627 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.00 ms. Allocated memory is still 144.7 MB. Free memory was 118.7 MB in the beginning and 117.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:59:34,628 INFO L168 Benchmark]: Boogie Preprocessor took 19.63 ms. Allocated memory is still 144.7 MB. Free memory was 117.2 MB in the beginning and 116.6 MB in the end (delta: 620.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:59:34,628 INFO L168 Benchmark]: RCFGBuilder took 328.60 ms. Allocated memory is still 144.7 MB. Free memory was 116.0 MB in the beginning and 106.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 03:59:34,629 INFO L168 Benchmark]: CodeCheck took 10381.82 ms. Allocated memory was 144.7 MB in the beginning and 209.7 MB in the end (delta: 65.0 MB). Free memory was 106.1 MB in the beginning and 126.8 MB in the end (delta: -20.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2021-10-13 03:59:34,629 INFO L168 Benchmark]: Witness Printer took 44.70 ms. Allocated memory is still 209.7 MB. Free memory was 126.8 MB in the beginning and 124.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:59:34,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10187.2ms, OverallIterations: 34, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 0 SDtfs, -2078210042 SDslu, 0 SDs, 0 SdLazy, 1861863422 SolverSat, -562712484 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7945.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6913 GetRequests, 6528 SyntacticMatches, 145 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26479 ImplicationChecksByTransitivity, 7642.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 70.3ms SsaConstructionTime, 438.8ms SatisfiabilityAnalysisTime, 1823.7ms InterpolantComputationTime, 977 NumberOfCodeBlocks, 977 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 944 ConstructedInterpolants, 0 QuantifiedInterpolants, 1523 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 2 PerfectInterpolantSequences, 8876/10593 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 26]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (b <= 6 && a <= 5) || a <= 4 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((5 < b && b <= 6) && a <= 6) || a <= 5 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 109.1 MB. Free memory was 67.0 MB in the beginning and 67.0 MB in the end (delta: 53.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 224.46 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 75.1 MB in the beginning and 118.7 MB in the end (delta: -43.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.00 ms. Allocated memory is still 144.7 MB. Free memory was 118.7 MB in the beginning and 117.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.63 ms. Allocated memory is still 144.7 MB. Free memory was 117.2 MB in the beginning and 116.6 MB in the end (delta: 620.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 328.60 ms. Allocated memory is still 144.7 MB. Free memory was 116.0 MB in the beginning and 106.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 10381.82 ms. Allocated memory was 144.7 MB in the beginning and 209.7 MB in the end (delta: 65.0 MB). Free memory was 106.1 MB in the beginning and 126.8 MB in the end (delta: -20.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. * Witness Printer took 44.70 ms. Allocated memory is still 209.7 MB. Free memory was 126.8 MB in the beginning and 124.7 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! [2021-10-13 03:59:34,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c352cf7-bf5d-4143-8abf-12c36465b17f/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...