./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/NarrowKonv.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/NarrowKonv.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c8d79b985e49ac5d6f27b4e25f4e3597dadc4ec57e262caec7782b796e874b7 --- 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 09:28:56,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:56,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:56,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:56,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:56,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:56,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:56,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:56,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:56,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:56,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:56,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:56,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:56,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:56,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:56,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:56,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:56,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:56,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:56,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:56,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:56,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:56,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:56,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:56,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:56,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:56,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:56,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:56,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:56,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:56,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:56,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:56,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:56,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:56,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:56,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:56,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:56,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:56,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:56,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:56,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:56,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 09:28:56,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:56,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:56,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:56,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:56,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:56,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:56,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:56,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:56,317 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:56,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:56,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:28:56,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:56,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:56,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:56,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:56,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:56,320 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 09:28:56,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:56,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:56,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:56,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:56,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:56,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:56,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:56,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:56,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:56,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:56,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:56,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:28:56,323 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:56,323 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:56,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:56,324 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_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c8d79b985e49ac5d6f27b4e25f4e3597dadc4ec57e262caec7782b796e874b7 [2022-11-20 09:28:56,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:56,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:56,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:56,701 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:56,702 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:56,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-restricted-15/NarrowKonv.c [2022-11-20 09:28:59,825 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:00,044 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:00,044 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/sv-benchmarks/c/termination-restricted-15/NarrowKonv.c [2022-11-20 09:29:00,054 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/data/02b7eaede/510d8dade38949dc80ec7c596861c456/FLAG55275cd4b [2022-11-20 09:29:00,076 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/data/02b7eaede/510d8dade38949dc80ec7c596861c456 [2022-11-20 09:29:00,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:00,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:00,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:00,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:00,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:00,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00, skipping insertion in model container [2022-11-20 09:29:00,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:00,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:00,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:00,288 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:00,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:00,319 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:00,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00 WrapperNode [2022-11-20 09:29:00,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:00,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:00,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:00,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:00,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,357 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-20 09:29:00,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:00,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:00,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:00,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:00,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,380 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:00,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:00,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:00,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:00,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (1/1) ... [2022-11-20 09:29:00,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:00,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:00,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:00,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:00,553 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:00,555 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:00,716 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:00,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:00,722 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:29:00,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:00 BoogieIcfgContainer [2022-11-20 09:29:00,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:00,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:29:00,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:29:00,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:29:00,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:29:00" (1/3) ... [2022-11-20 09:29:00,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474f1e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:00, skipping insertion in model container [2022-11-20 09:29:00,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:00" (2/3) ... [2022-11-20 09:29:00,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474f1e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:00, skipping insertion in model container [2022-11-20 09:29:00,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:00" (3/3) ... [2022-11-20 09:29:00,751 INFO L112 eAbstractionObserver]: Analyzing ICFG NarrowKonv.c [2022-11-20 09:29:00,769 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:29:00,769 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 09:29:00,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:29:00,866 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@54e1d8c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:29:00,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 09:29:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:00,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 09:29:00,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:00,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 09:29:00,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 09:29:00,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:00,885 INFO L85 PathProgramCache]: Analyzing trace with hash 889692423, now seen corresponding path program 1 times [2022-11-20 09:29:00,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:00,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068858071] [2022-11-20 09:29:00,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:00,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:01,063 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 09:29:01,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:01,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068858071] [2022-11-20 09:29:01,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068858071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:01,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:01,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:01,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742432726] [2022-11-20 09:29:01,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:01,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:01,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:01,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:01,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:01,108 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:01,173 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-11-20 09:29:01,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:01,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 09:29:01,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:01,186 INFO L225 Difference]: With dead ends: 21 [2022-11-20 09:29:01,186 INFO L226 Difference]: Without dead ends: 12 [2022-11-20 09:29:01,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:01,206 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:01,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 10 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:29:01,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-20 09:29:01,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-20 09:29:01,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-11-20 09:29:01,244 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 6 [2022-11-20 09:29:01,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:01,244 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-20 09:29:01,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,245 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-20 09:29:01,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 09:29:01,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:01,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 09:29:01,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:29:01,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 09:29:01,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:01,247 INFO L85 PathProgramCache]: Analyzing trace with hash 889692615, now seen corresponding path program 1 times [2022-11-20 09:29:01,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:01,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514751288] [2022-11-20 09:29:01,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:01,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:01,294 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 09:29:01,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:01,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514751288] [2022-11-20 09:29:01,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514751288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:01,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:01,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:01,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647818429] [2022-11-20 09:29:01,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:01,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:01,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:01,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:01,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:01,299 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:01,337 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-20 09:29:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:29:01,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 09:29:01,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:01,339 INFO L225 Difference]: With dead ends: 13 [2022-11-20 09:29:01,339 INFO L226 Difference]: Without dead ends: 12 [2022-11-20 09:29:01,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:01,341 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:01,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:29:01,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-20 09:29:01,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2022-11-20 09:29:01,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-20 09:29:01,346 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2022-11-20 09:29:01,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:01,346 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-20 09:29:01,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,347 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-20 09:29:01,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 09:29:01,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:01,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:01,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:29:01,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 09:29:01,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:01,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1810661388, now seen corresponding path program 1 times [2022-11-20 09:29:01,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:01,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574783189] [2022-11-20 09:29:01,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:01,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:01,402 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 09:29:01,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:01,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574783189] [2022-11-20 09:29:01,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574783189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:01,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:01,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:01,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16660456] [2022-11-20 09:29:01,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:01,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:01,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:01,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:01,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:01,406 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:01,435 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-11-20 09:29:01,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:01,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 09:29:01,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:01,437 INFO L225 Difference]: With dead ends: 28 [2022-11-20 09:29:01,437 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 09:29:01,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:01,439 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:01,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:29:01,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 09:29:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-20 09:29:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-11-20 09:29:01,445 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 7 [2022-11-20 09:29:01,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:01,446 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-11-20 09:29:01,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-20 09:29:01,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 09:29:01,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:01,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:01,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:29:01,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 09:29:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:01,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1810667346, now seen corresponding path program 1 times [2022-11-20 09:29:01,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:01,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598671442] [2022-11-20 09:29:01,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:01,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:01,490 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 09:29:01,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:01,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598671442] [2022-11-20 09:29:01,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598671442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:01,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:01,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:01,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318052099] [2022-11-20 09:29:01,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:01,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:01,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:01,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:01,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:01,494 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:01,511 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2022-11-20 09:29:01,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:01,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-20 09:29:01,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:01,512 INFO L225 Difference]: With dead ends: 18 [2022-11-20 09:29:01,513 INFO L226 Difference]: Without dead ends: 17 [2022-11-20 09:29:01,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:01,515 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:01,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:29:01,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-20 09:29:01,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-20 09:29:01,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-11-20 09:29:01,521 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 7 [2022-11-20 09:29:01,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:01,522 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-11-20 09:29:01,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-20 09:29:01,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 09:29:01,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:01,523 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2022-11-20 09:29:01,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:29:01,524 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 09:29:01,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:01,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1431035390, now seen corresponding path program 1 times [2022-11-20 09:29:01,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:01,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808030896] [2022-11-20 09:29:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:01,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:01,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:01,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808030896] [2022-11-20 09:29:01,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808030896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:01,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:01,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:29:01,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605264976] [2022-11-20 09:29:01,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:01,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:01,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:01,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:01,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:01,599 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:01,697 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2022-11-20 09:29:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:29:01,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 09:29:01,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:01,699 INFO L225 Difference]: With dead ends: 30 [2022-11-20 09:29:01,700 INFO L226 Difference]: Without dead ends: 22 [2022-11-20 09:29:01,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:01,702 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:01,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:29:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-20 09:29:01,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2022-11-20 09:29:01,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2022-11-20 09:29:01,710 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 12 [2022-11-20 09:29:01,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:01,710 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-11-20 09:29:01,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:01,713 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-11-20 09:29:01,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 09:29:01,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:01,714 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:01,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:29:01,716 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 09:29:01,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:01,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1489318330, now seen corresponding path program 1 times [2022-11-20 09:29:01,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:01,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235520406] [2022-11-20 09:29:01,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:01,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:29:01,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:01,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235520406] [2022-11-20 09:29:01,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235520406] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:29:01,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061216688] [2022-11-20 09:29:01,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:01,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:01,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:01,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:29:01,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 09:29:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:01,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:29:01,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:02,168 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:29:02,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:29:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 09:29:02,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061216688] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:29:02,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:29:02,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-20 09:29:02,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730997070] [2022-11-20 09:29:02,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:29:02,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:02,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:02,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:02,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:02,264 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:02,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:02,340 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2022-11-20 09:29:02,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:02,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-20 09:29:02,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:02,342 INFO L225 Difference]: With dead ends: 41 [2022-11-20 09:29:02,342 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 09:29:02,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:02,352 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:02,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 9 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:29:02,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 09:29:02,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 09:29:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 09:29:02,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-11-20 09:29:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:02,358 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:29:02,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:02,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 09:29:02,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 09:29:02,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-20 09:29:02,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-20 09:29:02,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-20 09:29:02,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-20 09:29:02,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:02,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:29:02,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 09:29:02,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-11-20 09:29:02,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 09:29:02,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-20 09:29:02,647 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-20 09:29:02,648 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2022-11-20 09:29:02,648 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-11-20 09:29:02,648 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2022-11-20 09:29:02,648 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 18) no Hoare annotation was computed. [2022-11-20 09:29:02,648 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 11 20) no Hoare annotation was computed. [2022-11-20 09:29:02,648 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 09:29:02,649 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2022-11-20 09:29:02,649 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2022-11-20 09:29:02,649 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 09:29:02,649 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 09:29:02,650 INFO L895 garLoopResultBuilder]: At program point L22(lines 5 23) the Hoare annotation is: (<= |ULTIMATE.start_main_~range~0#1| 20) [2022-11-20 09:29:02,650 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 19) no Hoare annotation was computed. [2022-11-20 09:29:02,650 INFO L895 garLoopResultBuilder]: At program point L12-1(lines 11 20) the Hoare annotation is: (let ((.cse1 (+ 2147483647 |ULTIMATE.start_main_~range~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~range~0#1| 20))) (or (and .cse0 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (< 0 .cse1)) (and (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 .cse1) .cse0))) [2022-11-20 09:29:02,653 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-20 09:29:02,656 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:29:02,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:29:02 BoogieIcfgContainer [2022-11-20 09:29:02,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:29:02,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:29:02,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:29:02,672 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:29:02,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:00" (3/4) ... [2022-11-20 09:29:02,676 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 09:29:02,685 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 09:29:02,685 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 09:29:02,686 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:29:02,715 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:29:02,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:29:02,717 INFO L158 Benchmark]: Toolchain (without parser) took 2636.91ms. Allocated memory is still 184.5MB. Free memory was 137.9MB in the beginning and 135.1MB in the end (delta: 2.8MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-11-20 09:29:02,717 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:02,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.38ms. Allocated memory is still 184.5MB. Free memory was 137.9MB in the beginning and 128.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 09:29:02,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.70ms. Allocated memory is still 184.5MB. Free memory was 128.2MB in the beginning and 127.4MB in the end (delta: 806.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:02,718 INFO L158 Benchmark]: Boogie Preprocessor took 24.22ms. Allocated memory is still 184.5MB. Free memory was 127.4MB in the beginning and 126.1MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:29:02,719 INFO L158 Benchmark]: RCFGBuilder took 340.97ms. Allocated memory is still 184.5MB. Free memory was 126.1MB in the beginning and 116.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 09:29:02,719 INFO L158 Benchmark]: TraceAbstraction took 1943.06ms. Allocated memory is still 184.5MB. Free memory was 115.7MB in the beginning and 137.2MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:02,719 INFO L158 Benchmark]: Witness Printer took 44.80ms. Allocated memory is still 184.5MB. Free memory was 137.2MB in the beginning and 135.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:29:02,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.38ms. Allocated memory is still 184.5MB. Free memory was 137.9MB in the beginning and 128.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.70ms. Allocated memory is still 184.5MB. Free memory was 128.2MB in the beginning and 127.4MB in the end (delta: 806.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.22ms. Allocated memory is still 184.5MB. Free memory was 127.4MB in the beginning and 126.1MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 340.97ms. Allocated memory is still 184.5MB. Free memory was 126.1MB in the beginning and 116.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1943.06ms. Allocated memory is still 184.5MB. Free memory was 115.7MB in the beginning and 137.2MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.80ms. Allocated memory is still 184.5MB. Free memory was 137.2MB in the beginning and 135.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 36 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 9 NumberOfFragments, 30 HoareAnnotationTreeSize, 2 FomulaSimplifications, 63 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 46 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 14/38 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: range <= 20 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((range <= 20 && 0 <= i + 2147483648) && 0 < 2147483647 + range) || ((i == 0 && 0 <= 2147483647 + range) && range <= 20) RESULT: Ultimate proved your program to be correct! [2022-11-20 09:29:02,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e18d44b-1887-485d-a944-60a7a469c5b3/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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