./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/reducercommutativity/max05-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4 --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-2329fc7 [2022-12-15 03:21:38,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 03:21:38,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 03:21:38,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 03:21:38,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 03:21:38,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 03:21:38,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 03:21:38,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 03:21:38,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 03:21:38,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 03:21:38,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 03:21:38,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 03:21:38,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 03:21:38,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 03:21:38,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 03:21:38,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 03:21:38,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 03:21:38,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 03:21:38,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 03:21:38,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 03:21:38,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 03:21:38,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 03:21:38,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 03:21:38,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 03:21:38,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 03:21:38,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 03:21:38,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 03:21:38,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 03:21:38,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 03:21:38,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 03:21:38,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 03:21:38,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 03:21:38,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 03:21:38,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 03:21:38,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 03:21:38,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 03:21:38,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 03:21:38,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 03:21:38,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 03:21:38,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 03:21:38,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 03:21:38,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-12-15 03:21:38,260 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 03:21:38,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 03:21:38,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 03:21:38,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 03:21:38,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 03:21:38,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 03:21:38,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 03:21:38,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-15 03:21:38,262 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 03:21:38,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 03:21:38,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-15 03:21:38,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 03:21:38,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 03:21:38,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 03:21:38,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 03:21:38,263 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 03:21:38,263 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-15 03:21:38,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 03:21:38,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 03:21:38,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 03:21:38,263 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 03:21:38,263 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 03:21:38,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 03:21:38,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 03:21:38,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 03:21:38,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 03:21:38,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 03:21:38,264 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 03:21:38,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 03:21:38,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 03:21:38,264 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_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e48915cf0eaefe43320bbe59bf88f5c68b2f305d293e808fa6ece9112b5c238 [2022-12-15 03:21:38,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 03:21:38,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 03:21:38,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 03:21:38,455 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 03:21:38,455 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 03:21:38,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/reducercommutativity/max05-1.i [2022-12-15 03:21:41,123 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 03:21:41,240 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 03:21:41,241 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/sv-benchmarks/c/reducercommutativity/max05-1.i [2022-12-15 03:21:41,245 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/data/d1ca55d46/c33aa8db9b0742afbadd14e5e110e85a/FLAG417b24c39 [2022-12-15 03:21:41,256 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/data/d1ca55d46/c33aa8db9b0742afbadd14e5e110e85a [2022-12-15 03:21:41,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 03:21:41,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 03:21:41,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 03:21:41,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 03:21:41,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 03:21:41,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60bf4ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41, skipping insertion in model container [2022-12-15 03:21:41,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 03:21:41,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 03:21:41,403 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_24855258-4cbb-4541-bf7e-293c1b6902fc/sv-benchmarks/c/reducercommutativity/max05-1.i[1284,1297] [2022-12-15 03:21:41,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 03:21:41,410 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 03:21:41,425 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_24855258-4cbb-4541-bf7e-293c1b6902fc/sv-benchmarks/c/reducercommutativity/max05-1.i[1284,1297] [2022-12-15 03:21:41,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 03:21:41,435 INFO L208 MainTranslator]: Completed translation [2022-12-15 03:21:41,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41 WrapperNode [2022-12-15 03:21:41,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 03:21:41,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 03:21:41,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 03:21:41,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 03:21:41,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,459 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-12-15 03:21:41,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 03:21:41,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 03:21:41,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 03:21:41,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 03:21:41,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,475 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 03:21:41,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 03:21:41,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 03:21:41,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 03:21:41,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 03:21:41,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 03:21:41,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 03:21:41,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 03:21:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-15 03:21:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure max [2022-12-15 03:21:41,527 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2022-12-15 03:21:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-15 03:21:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-15 03:21:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 03:21:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 03:21:41,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 03:21:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 03:21:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 03:21:41,585 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 03:21:41,587 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 03:21:41,717 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 03:21:41,763 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 03:21:41,764 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-15 03:21:41,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:21:41 BoogieIcfgContainer [2022-12-15 03:21:41,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 03:21:41,766 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 03:21:41,766 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 03:21:41,773 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 03:21:41,774 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:21:41" (1/1) ... [2022-12-15 03:21:41,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 03:21:41,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2022-12-15 03:21:41,820 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-12-15 03:21:41,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 03:21:41,822 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:41,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:21:42,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:42,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2022-12-15 03:21:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-12-15 03:21:42,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-15 03:21:42,011 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:42,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:42,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:21:42,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:42,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2022-12-15 03:21:42,085 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-12-15 03:21:42,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 03:21:42,085 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:42,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:42,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:21:42,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 34 states and 40 transitions. [2022-12-15 03:21:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-12-15 03:21:42,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 03:21:42,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:42,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:42,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 03:21:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:42,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2022-12-15 03:21:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-12-15 03:21:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 03:21:42,377 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:42,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:42,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:21:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:42,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 34 states and 40 transitions. [2022-12-15 03:21:42,484 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-12-15 03:21:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 03:21:42,484 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:42,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:21:42,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 31 states and 35 transitions. [2022-12-15 03:21:42,594 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-12-15 03:21:42,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 03:21:42,594 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:42,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-15 03:21:42,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2022-12-15 03:21:42,688 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-15 03:21:42,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 03:21:42,688 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:42,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-15 03:21:42,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:42,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 34 states and 39 transitions. [2022-12-15 03:21:42,736 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2022-12-15 03:21:42,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-15 03:21:42,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:42,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 03:21:42,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 37 states and 42 transitions. [2022-12-15 03:21:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2022-12-15 03:21:42,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-15 03:21:42,920 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:42,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:43,022 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 03:21:43,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:43,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 40 states and 45 transitions. [2022-12-15 03:21:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2022-12-15 03:21:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-15 03:21:43,162 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:43,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 03:21:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:43,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 43 states and 47 transitions. [2022-12-15 03:21:43,436 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-12-15 03:21:43,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-15 03:21:43,436 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:43,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:43,516 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-15 03:21:43,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:43,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 45 states and 50 transitions. [2022-12-15 03:21:43,655 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-12-15 03:21:43,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-15 03:21:43,656 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:43,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:43,711 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-15 03:21:43,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:43,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 44 states and 49 transitions. [2022-12-15 03:21:43,831 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-12-15 03:21:43,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-15 03:21:43,832 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:43,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-15 03:21:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 41 states and 44 transitions. [2022-12-15 03:21:44,007 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2022-12-15 03:21:44,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-15 03:21:44,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:44,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-15 03:21:44,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 42 states and 45 transitions. [2022-12-15 03:21:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-12-15 03:21:44,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-15 03:21:44,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:44,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-15 03:21:44,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:44,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 44 states and 48 transitions. [2022-12-15 03:21:44,257 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-12-15 03:21:44,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-15 03:21:44,258 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:44,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:44,296 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-15 03:21:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:44,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 45 states and 49 transitions. [2022-12-15 03:21:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-12-15 03:21:44,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-15 03:21:44,310 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:44,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:44,385 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-15 03:21:44,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:44,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 46 states and 50 transitions. [2022-12-15 03:21:44,426 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-12-15 03:21:44,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-15 03:21:44,426 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:44,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-15 03:21:44,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:44,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 47 states and 51 transitions. [2022-12-15 03:21:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-12-15 03:21:44,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-15 03:21:44,487 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:44,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:44,567 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-15 03:21:44,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:44,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 49 states and 54 transitions. [2022-12-15 03:21:44,666 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-12-15 03:21:44,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-15 03:21:44,666 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:44,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:44,745 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-12-15 03:21:44,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 48 states and 53 transitions. [2022-12-15 03:21:44,890 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-12-15 03:21:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-15 03:21:44,891 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:44,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:44,987 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-12-15 03:21:45,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:45,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 47 states and 52 transitions. [2022-12-15 03:21:45,178 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-12-15 03:21:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-15 03:21:45,178 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:45,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-12-15 03:21:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:45,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 46 states and 51 transitions. [2022-12-15 03:21:45,413 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-12-15 03:21:45,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-15 03:21:45,414 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:21:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:21:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:21:45,508 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-12-15 03:21:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:21:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 45 states and 50 transitions. [2022-12-15 03:21:45,614 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-12-15 03:21:45,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 03:21:45,615 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2022-12-15 03:21:45,622 INFO L754 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2022-12-15 03:21:45,730 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-12-15 03:21:45,739 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-12-15 03:21:45,739 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 03:21:45,739 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2022-12-15 03:21:45,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 03:21:45 ImpRootNode [2022-12-15 03:21:45,740 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 03:21:45,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 03:21:45,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 03:21:45,740 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 03:21:45,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:21:41" (3/4) ... [2022-12-15 03:21:45,743 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 03:21:45,747 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure max [2022-12-15 03:21:45,750 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-15 03:21:45,750 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-15 03:21:45,750 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-15 03:21:45,750 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-15 03:21:45,782 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 03:21:45,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 03:21:45,783 INFO L158 Benchmark]: Toolchain (without parser) took 4523.84ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 95.0MB in the beginning and 85.6MB in the end (delta: 9.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-15 03:21:45,783 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory is still 107.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 03:21:45,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.10ms. Allocated memory is still 136.3MB. Free memory was 95.0MB in the beginning and 84.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-15 03:21:45,784 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.88ms. Allocated memory is still 136.3MB. Free memory was 84.0MB in the beginning and 82.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:21:45,785 INFO L158 Benchmark]: Boogie Preprocessor took 17.05ms. Allocated memory is still 136.3MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 03:21:45,785 INFO L158 Benchmark]: RCFGBuilder took 288.31ms. Allocated memory is still 136.3MB. Free memory was 81.3MB in the beginning and 66.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-15 03:21:45,786 INFO L158 Benchmark]: CodeCheck took 3973.62ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 66.1MB in the beginning and 89.7MB in the end (delta: -23.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-12-15 03:21:45,786 INFO L158 Benchmark]: Witness Printer took 42.25ms. Allocated memory is still 163.6MB. Free memory was 88.7MB in the beginning and 85.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:21:45,789 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: 3.8s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 969 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 407 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1215 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2810 IncrementalHoareTripleChecker+Invalid, 4025 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1215 mSolverCounterUnsat, 240 mSDtfsCounter, 2810 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3544 GetRequests, 3423 SyntacticMatches, 13 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5101 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 639 NumberOfCodeBlocks, 639 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 853 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 14 PerfectInterpolantSequences, 765/829 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 0.19ms. Allocated memory is still 136.3MB. Free memory is still 107.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.10ms. Allocated memory is still 136.3MB. Free memory was 95.0MB in the beginning and 84.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.88ms. Allocated memory is still 136.3MB. Free memory was 84.0MB in the beginning and 82.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.05ms. Allocated memory is still 136.3MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 288.31ms. Allocated memory is still 136.3MB. Free memory was 81.3MB in the beginning and 66.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3973.62ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 66.1MB in the beginning and 89.7MB in the end (delta: -23.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 42.25ms. Allocated memory is still 163.6MB. Free memory was 88.7MB in the beginning and 85.6MB 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! [2022-12-15 03:21:45,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24855258-4cbb-4541-bf7e-293c1b6902fc/bin/ukojak-rkRKPMF4O4/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