./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/reducercommutativity/max05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/reducercommutativity/max05-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e48915cf0eaefe43320bbe59bf88f5c68b2f305d293e808fa6ece9112b5c238 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 17:31:25,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:31:25,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:31:25,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:31:25,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:31:25,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:31:25,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:31:25,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:31:25,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:31:25,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:31:25,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:31:25,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:31:25,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:31:25,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:31:25,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:31:25,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:31:25,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:31:25,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:31:25,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:31:25,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:31:25,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:31:25,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:31:25,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:31:25,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:31:25,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:31:25,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:31:25,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:31:25,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:31:25,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:31:25,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:31:25,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:31:25,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:31:25,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:31:25,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:31:25,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:31:25,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:31:25,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:31:25,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:31:25,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:31:25,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:31:25,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:31:25,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-20 17:31:25,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:31:25,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:31:25,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:31:25,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:31:25,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:31:25,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:31:25,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:31:25,448 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 17:31:25,448 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:31:25,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:31:25,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 17:31:25,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:31:25,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:31:25,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:31:25,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:31:25,450 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:31:25,451 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 17:31:25,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:31:25,451 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:31:25,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:31:25,452 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:31:25,452 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:31:25,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:31:25,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:31:25,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:31:25,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:31:25,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:31:25,454 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:31:25,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:31:25,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:31:25,455 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_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e48915cf0eaefe43320bbe59bf88f5c68b2f305d293e808fa6ece9112b5c238 [2022-11-20 17:31:25,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:31:25,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:31:25,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:31:25,831 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:31:25,831 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:31:25,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/reducercommutativity/max05-1.i [2022-11-20 17:31:29,040 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:31:29,301 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:31:29,302 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/sv-benchmarks/c/reducercommutativity/max05-1.i [2022-11-20 17:31:29,310 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/data/cddb46fa1/d98079fdb5be4ab8895740d532e377c1/FLAG29d24337a [2022-11-20 17:31:29,331 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/data/cddb46fa1/d98079fdb5be4ab8895740d532e377c1 [2022-11-20 17:31:29,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:31:29,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:31:29,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:31:29,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:31:29,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:31:29,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0d9d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29, skipping insertion in model container [2022-11-20 17:31:29,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:31:29,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:31:29,614 WARN L237 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_89060dd3-832a-4539-a652-0755a413c1e6/sv-benchmarks/c/reducercommutativity/max05-1.i[1284,1297] [2022-11-20 17:31:29,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:31:29,636 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:31:29,677 WARN L237 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_89060dd3-832a-4539-a652-0755a413c1e6/sv-benchmarks/c/reducercommutativity/max05-1.i[1284,1297] [2022-11-20 17:31:29,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:31:29,708 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:31:29,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29 WrapperNode [2022-11-20 17:31:29,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:31:29,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:31:29,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:31:29,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:31:29,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,766 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-11-20 17:31:29,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:31:29,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:31:29,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:31:29,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:31:29,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,811 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:31:29,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:31:29,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:31:29,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:31:29,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:31:29" (1/1) ... [2022-11-20 17:31:29,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:31:29,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:31:29,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:31:29,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:31:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:31:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure max [2022-11-20 17:31:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2022-11-20 17:31:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:31:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:31:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:31:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:31:29,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:31:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:31:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:31:29,992 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:31:29,994 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:31:30,208 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:31:30,301 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:31:30,302 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 17:31:30,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:30 BoogieIcfgContainer [2022-11-20 17:31:30,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:31:30,306 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:31:30,306 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:31:30,318 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:31:30,318 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:30" (1/1) ... [2022-11-20 17:31:30,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:31:30,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2022-11-20 17:31:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-20 17:31:30,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 17:31:30,395 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:30,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:31:30,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2022-11-20 17:31:30,732 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-11-20 17:31:30,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:31:30,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:30,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:31:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2022-11-20 17:31:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-11-20 17:31:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 17:31:30,905 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:30,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 17:31:31,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2022-11-20 17:31:31,050 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-11-20 17:31:31,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:31:31,050 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:31,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:31:31,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:31,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 30 states and 34 transitions. [2022-11-20 17:31:31,449 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-20 17:31:31,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 17:31:31,454 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:31,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:31:31,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:31,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 31 states and 35 transitions. [2022-11-20 17:31:31,679 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-11-20 17:31:31,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 17:31:31,681 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:31,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 17:31:31,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:31,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2022-11-20 17:31:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-11-20 17:31:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 17:31:31,886 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:31,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 17:31:32,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:32,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 34 states and 39 transitions. [2022-11-20 17:31:32,006 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2022-11-20 17:31:32,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 17:31:32,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:32,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 17:31:32,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2022-11-20 17:31:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-11-20 17:31:32,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 17:31:32,182 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:32,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 17:31:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 36 states and 41 transitions. [2022-11-20 17:31:32,588 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-11-20 17:31:32,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 17:31:32,589 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:32,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 17:31:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 39 states and 44 transitions. [2022-11-20 17:31:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-11-20 17:31:33,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 17:31:33,005 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:33,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:33,197 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 17:31:33,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:33,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 42 states and 46 transitions. [2022-11-20 17:31:33,482 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-20 17:31:33,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 17:31:33,482 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:33,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:33,606 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-20 17:31:33,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 41 states and 44 transitions. [2022-11-20 17:31:33,903 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-11-20 17:31:33,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 17:31:33,904 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:33,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-20 17:31:34,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:34,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 42 states and 45 transitions. [2022-11-20 17:31:34,139 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-11-20 17:31:34,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 17:31:34,140 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:34,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:34,253 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-20 17:31:34,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 44 states and 48 transitions. [2022-11-20 17:31:34,312 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-11-20 17:31:34,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-20 17:31:34,313 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:34,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:34,372 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-20 17:31:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:34,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 45 states and 49 transitions. [2022-11-20 17:31:34,388 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-11-20 17:31:34,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-20 17:31:34,390 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:34,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-20 17:31:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 46 states and 50 transitions. [2022-11-20 17:31:34,645 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-11-20 17:31:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-20 17:31:34,645 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:34,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:34,716 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-20 17:31:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 47 states and 51 transitions. [2022-11-20 17:31:34,732 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-11-20 17:31:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 17:31:34,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:34,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-20 17:31:34,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:34,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 46 states and 50 transitions. [2022-11-20 17:31:34,973 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-11-20 17:31:34,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 17:31:34,974 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:34,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-20 17:31:35,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:35,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 49 states and 54 transitions. [2022-11-20 17:31:35,402 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-11-20 17:31:35,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-20 17:31:35,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:35,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-20 17:31:35,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:35,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 48 states and 53 transitions. [2022-11-20 17:31:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-11-20 17:31:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-20 17:31:35,659 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:35,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-20 17:31:36,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 47 states and 52 transitions. [2022-11-20 17:31:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-20 17:31:36,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 17:31:36,084 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:31:36,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:31:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:31:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-11-20 17:31:36,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:31:36,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 46 states and 51 transitions. [2022-11-20 17:31:36,387 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-11-20 17:31:36,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:31:36,388 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 23 iterations. [2022-11-20 17:31:36,397 INFO L754 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2022-11-20 17:31:36,606 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-20 17:31:36,617 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-20 17:31:36,617 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:31:36,618 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2022-11-20 17:31:36,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:31:36 ImpRootNode [2022-11-20 17:31:36,619 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:31:36,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:31:36,620 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:31:36,620 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:31:36,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:31:30" (3/4) ... [2022-11-20 17:31:36,624 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:31:36,630 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure max [2022-11-20 17:31:36,634 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-20 17:31:36,635 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 17:31:36,635 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 17:31:36,635 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:31:36,684 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:31:36,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:31:36,690 INFO L158 Benchmark]: Toolchain (without parser) took 7353.60ms. Allocated memory was 163.6MB in the beginning and 224.4MB in the end (delta: 60.8MB). Free memory was 116.1MB in the beginning and 123.6MB in the end (delta: -7.5MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2022-11-20 17:31:36,691 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 163.6MB. Free memory was 130.9MB in the beginning and 130.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:31:36,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.78ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 105.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 17:31:36,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.83ms. Allocated memory is still 163.6MB. Free memory was 105.2MB in the beginning and 103.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:31:36,694 INFO L158 Benchmark]: Boogie Preprocessor took 55.33ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 102.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:31:36,698 INFO L158 Benchmark]: RCFGBuilder took 482.08ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 87.1MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 17:31:36,698 INFO L158 Benchmark]: CodeCheck took 6312.74ms. Allocated memory was 163.6MB in the beginning and 224.4MB in the end (delta: 60.8MB). Free memory was 86.5MB in the beginning and 126.7MB in the end (delta: -40.3MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2022-11-20 17:31:36,699 INFO L158 Benchmark]: Witness Printer took 69.66ms. Allocated memory is still 224.4MB. Free memory was 126.7MB in the beginning and 123.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:31:36,701 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, 29 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 890 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 363 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 986 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2379 IncrementalHoareTripleChecker+Invalid, 3365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 986 mSolverCounterUnsat, 224 mSDtfsCounter, 2379 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3289 GetRequests, 3186 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4144 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 576 ConstructedInterpolants, 0 QuantifiedInterpolants, 772 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 14 PerfectInterpolantSequences, 698/755 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 <= i || i == 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 163.6MB. Free memory was 130.9MB in the beginning and 130.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.78ms. Allocated memory is still 163.6MB. Free memory was 116.1MB in the beginning and 105.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.83ms. Allocated memory is still 163.6MB. Free memory was 105.2MB in the beginning and 103.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.33ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 102.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 482.08ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 87.1MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 6312.74ms. Allocated memory was 163.6MB in the beginning and 224.4MB in the end (delta: 60.8MB). Free memory was 86.5MB in the beginning and 126.7MB in the end (delta: -40.3MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 69.66ms. Allocated memory is still 224.4MB. Free memory was 126.7MB in the beginning and 123.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:31:36,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89060dd3-832a-4539-a652-0755a413c1e6/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE