./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer --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 687269bb6882b72a3d48999f1e5c55a1d5283a94 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:11:13,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:11:13,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:11:13,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:11:13,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:11:13,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:11:13,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:11:13,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:11:13,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:11:13,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:11:13,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:11:13,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:11:13,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:11:13,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:11:13,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:11:13,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:11:13,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:11:13,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:11:13,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:11:13,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:11:13,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:11:13,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:11:13,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:11:13,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:11:13,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:11:13,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:11:13,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:11:13,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:11:13,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:11:13,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:11:13,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:11:13,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:11:13,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:11:13,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:11:13,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:11:13,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:11:13,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:11:13,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:11:13,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:11:13,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:11:13,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:11:13,273 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-30 01:11:13,314 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:11:13,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:11:13,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:11:13,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:11:13,316 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:11:13,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:11:13,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:11:13,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:11:13,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:11:13,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:11:13,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:11:13,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:11:13,318 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:11:13,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:11:13,330 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:11:13,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:11:13,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:11:13,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:11:13,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:11:13,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:11:13,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:11:13,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:11:13,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:11:13,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:11:13,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:11:13,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:11:13,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:11:13,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:11:13,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2020-11-30 01:11:13,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:11:13,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:11:13,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:11:13,642 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:11:13,649 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:11:13,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2020-11-30 01:11:13,720 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/data/4ff43168f/2cd365340d734118a7a42857e3aff7dd/FLAG38e35f758 [2020-11-30 01:11:14,200 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:11:14,201 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2020-11-30 01:11:14,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/data/4ff43168f/2cd365340d734118a7a42857e3aff7dd/FLAG38e35f758 [2020-11-30 01:11:14,571 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/data/4ff43168f/2cd365340d734118a7a42857e3aff7dd [2020-11-30 01:11:14,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:11:14,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:11:14,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:11:14,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:11:14,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:11:14,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590f5718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14, skipping insertion in model container [2020-11-30 01:11:14,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:11:14,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:11:14,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:11:14,733 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:11:14,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:11:14,760 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:11:14,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14 WrapperNode [2020-11-30 01:11:14,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:11:14,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:11:14,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:11:14,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:11:14,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:11:14,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:11:14,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:11:14,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:11:14,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... [2020-11-30 01:11:14,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:11:14,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:11:14,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:11:14,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:11:14,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:11:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:11:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:11:15,254 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:11:15,255 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:11:15,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:11:15 BoogieIcfgContainer [2020-11-30 01:11:15,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:11:15,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:11:15,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:11:15,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:11:15,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:11:14" (1/3) ... [2020-11-30 01:11:15,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bc050f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:11:15, skipping insertion in model container [2020-11-30 01:11:15,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:14" (2/3) ... [2020-11-30 01:11:15,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bc050f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:11:15, skipping insertion in model container [2020-11-30 01:11:15,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:11:15" (3/3) ... [2020-11-30 01:11:15,281 INFO L111 eAbstractionObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2020-11-30 01:11:15,295 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:11:15,298 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-30 01:11:15,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-30 01:11:15,340 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:11:15,340 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:11:15,340 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:11:15,340 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:11:15,340 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:11:15,341 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:11:15,341 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:11:15,341 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:11:15,354 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-11-30 01:11:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:11:15,360 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:11:15,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 01:11:15,361 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:11:15,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:11:15,368 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2020-11-30 01:11:15,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:11:15,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272769728] [2020-11-30 01:11:15,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:11:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:11:15,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:11:15,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272769728] [2020-11-30 01:11:15,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:11:15,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:11:15,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210270289] [2020-11-30 01:11:15,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:11:15,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:11:15,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:11:15,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:11:15,553 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 3 states. [2020-11-30 01:11:15,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:11:15,684 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-11-30 01:11:15,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:11:15,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 01:11:15,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:11:15,693 INFO L225 Difference]: With dead ends: 55 [2020-11-30 01:11:15,693 INFO L226 Difference]: Without dead ends: 41 [2020-11-30 01:11:15,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:11:15,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-30 01:11:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2020-11-30 01:11:15,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 01:11:15,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-11-30 01:11:15,729 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 5 [2020-11-30 01:11:15,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:11:15,730 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-11-30 01:11:15,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:11:15,730 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2020-11-30 01:11:15,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:11:15,731 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:11:15,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 01:11:15,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:11:15,732 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:11:15,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:11:15,733 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2020-11-30 01:11:15,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:11:15,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168961060] [2020-11-30 01:11:15,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:11:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:11:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:11:15,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168961060] [2020-11-30 01:11:15,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:11:15,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:11:15,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355594791] [2020-11-30 01:11:15,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:11:15,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:11:15,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:11:15,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:11:15,764 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 3 states. [2020-11-30 01:11:15,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:11:15,851 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-11-30 01:11:15,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:11:15,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 01:11:15,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:11:15,853 INFO L225 Difference]: With dead ends: 50 [2020-11-30 01:11:15,853 INFO L226 Difference]: Without dead ends: 48 [2020-11-30 01:11:15,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:11:15,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-11-30 01:11:15,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2020-11-30 01:11:15,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 01:11:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-11-30 01:11:15,862 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 5 [2020-11-30 01:11:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:11:15,862 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-11-30 01:11:15,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:11:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2020-11-30 01:11:15,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:11:15,865 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:11:15,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:11:15,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:11:15,869 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:11:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:11:15,873 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2020-11-30 01:11:15,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:11:15,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003611781] [2020-11-30 01:11:15,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:11:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:11:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:11:15,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003611781] [2020-11-30 01:11:15,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:11:15,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:11:15,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327561718] [2020-11-30 01:11:15,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:11:15,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:11:15,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:11:15,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:11:15,932 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 3 states. [2020-11-30 01:11:15,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:11:15,977 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2020-11-30 01:11:15,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:11:15,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 01:11:15,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:11:15,988 INFO L225 Difference]: With dead ends: 39 [2020-11-30 01:11:15,988 INFO L226 Difference]: Without dead ends: 37 [2020-11-30 01:11:15,989 INFO L677 BasicCegarLoop]: 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 [2020-11-30 01:11:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-30 01:11:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-30 01:11:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-30 01:11:15,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2020-11-30 01:11:15,995 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 6 [2020-11-30 01:11:15,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:11:15,996 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2020-11-30 01:11:15,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:11:15,996 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-11-30 01:11:15,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:11:15,996 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:11:15,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:11:15,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:11:15,997 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:11:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:11:15,997 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2020-11-30 01:11:15,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:11:15,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380101126] [2020-11-30 01:11:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:11:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:11:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:11:16,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380101126] [2020-11-30 01:11:16,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:11:16,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:11:16,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311551257] [2020-11-30 01:11:16,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:11:16,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:11:16,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:11:16,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:11:16,045 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 3 states. [2020-11-30 01:11:16,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:11:16,210 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2020-11-30 01:11:16,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:11:16,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 01:11:16,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:11:16,212 INFO L225 Difference]: With dead ends: 37 [2020-11-30 01:11:16,212 INFO L226 Difference]: Without dead ends: 35 [2020-11-30 01:11:16,212 INFO L677 BasicCegarLoop]: 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 [2020-11-30 01:11:16,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-30 01:11:16,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-30 01:11:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-30 01:11:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2020-11-30 01:11:16,219 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 6 [2020-11-30 01:11:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:11:16,219 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2020-11-30 01:11:16,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:11:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2020-11-30 01:11:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:11:16,220 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:11:16,220 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:11:16,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:11:16,221 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:11:16,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:11:16,221 INFO L82 PathProgramCache]: Analyzing trace with hash 149003441, now seen corresponding path program 1 times [2020-11-30 01:11:16,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:11:16,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210111033] [2020-11-30 01:11:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:11:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:11:16,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:11:16,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210111033] [2020-11-30 01:11:16,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:11:16,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:11:16,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069873966] [2020-11-30 01:11:16,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:11:16,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:11:16,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:11:16,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:11:16,288 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand 4 states. [2020-11-30 01:11:16,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:11:16,357 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-11-30 01:11:16,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:11:16,360 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 01:11:16,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:11:16,360 INFO L225 Difference]: With dead ends: 35 [2020-11-30 01:11:16,360 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:11:16,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:11:16,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:11:16,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:11:16,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:11:16,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:11:16,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-30 01:11:16,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:11:16,362 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:11:16,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:11:16,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:11:16,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:11:16,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:11:16,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:11:16,395 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2020-11-30 01:11:16,395 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-11-30 01:11:16,395 INFO L274 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-11-30 01:11:16,395 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2020-11-30 01:11:16,396 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-11-30 01:11:16,396 INFO L274 CegarLoopResult]: For program point L36-1(line 36) no Hoare annotation was computed. [2020-11-30 01:11:16,396 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-11-30 01:11:16,396 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:11:16,396 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2020-11-30 01:11:16,396 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:11:16,396 INFO L274 CegarLoopResult]: For program point L24-2(lines 24 40) no Hoare annotation was computed. [2020-11-30 01:11:16,396 INFO L277 CegarLoopResult]: At program point L41(lines 19 42) the Hoare annotation is: true [2020-11-30 01:11:16,396 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point L33(lines 33 37) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point L33-2(lines 33 37) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point L25(lines 25 39) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L270 CegarLoopResult]: At program point L25-2(lines 24 40) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483648) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point L34-1(line 34) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point L26(lines 26 30) no Hoare annotation was computed. [2020-11-30 01:11:16,397 INFO L274 CegarLoopResult]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2020-11-30 01:11:16,398 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2020-11-30 01:11:16,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:11:16 BoogieIcfgContainer [2020-11-30 01:11:16,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:11:16,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:11:16,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:11:16,413 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:11:16,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:11:15" (3/4) ... [2020-11-30 01:11:16,417 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:11:16,427 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 01:11:16,428 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 01:11:16,474 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cad536dd-7fd3-462a-a27f-de16dcd316d6/bin/uautomizer/witness.graphml [2020-11-30 01:11:16,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:11:16,476 INFO L168 Benchmark]: Toolchain (without parser) took 1900.92 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 65.2 MB in the beginning and 84.6 MB in the end (delta: -19.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:11:16,477 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 94.4 MB. Free memory is still 65.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:11:16,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.62 ms. Allocated memory is still 94.4 MB. Free memory was 65.0 MB in the beginning and 56.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:11:16,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.08 ms. Allocated memory is still 94.4 MB. Free memory was 56.3 MB in the beginning and 55.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:11:16,479 INFO L168 Benchmark]: Boogie Preprocessor took 19.28 ms. Allocated memory is still 94.4 MB. Free memory was 55.0 MB in the beginning and 54.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:11:16,479 INFO L168 Benchmark]: RCFGBuilder took 436.74 ms. Allocated memory is still 94.4 MB. Free memory was 54.0 MB in the beginning and 43.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:11:16,480 INFO L168 Benchmark]: TraceAbstraction took 1143.87 ms. Allocated memory is still 123.7 MB. Free memory was 101.4 MB in the beginning and 87.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:11:16,481 INFO L168 Benchmark]: Witness Printer took 61.63 ms. Allocated memory is still 123.7 MB. Free memory was 87.7 MB in the beginning and 84.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:11:16,484 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 94.4 MB. Free memory is still 65.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 182.62 ms. Allocated memory is still 94.4 MB. Free memory was 65.0 MB in the beginning and 56.3 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.08 ms. Allocated memory is still 94.4 MB. Free memory was 56.3 MB in the beginning and 55.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.28 ms. Allocated memory is still 94.4 MB. Free memory was 55.0 MB in the beginning and 54.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 436.74 ms. Allocated memory is still 94.4 MB. Free memory was 54.0 MB in the beginning and 43.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1143.87 ms. Allocated memory is still 123.7 MB. Free memory was 101.4 MB in the beginning and 87.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Witness Printer took 61.63 ms. Allocated memory is still 123.7 MB. Free memory was 87.7 MB in the beginning and 84.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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: 24]: Loop Invariant Derived loop invariant: x <= 2147483648 && y <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 85 SDslu, 23 SDs, 0 SdLazy, 89 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...