./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f22151260432e5b71f08e38556ae1504245a6b14 ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:41:38,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:41:38,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:41:38,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:41:38,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:41:38,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:41:38,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:41:38,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:41:38,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:41:38,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:41:38,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:41:38,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:41:38,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:41:38,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:41:38,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:41:38,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:41:38,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:41:38,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:41:38,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:41:38,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:41:38,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:41:38,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:41:38,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:41:38,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:41:38,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:41:38,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:41:38,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:41:38,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:41:38,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:41:38,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:41:38,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:41:38,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:41:38,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:41:38,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:41:38,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:41:38,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:41:38,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:41:38,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:41:38,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:41:38,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:41:38,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:41:38,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 02:41:38,646 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:41:38,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:41:38,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:41:38,648 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:41:38,648 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:41:38,649 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:41:38,649 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:41:38,649 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:41:38,650 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:41:38,650 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:41:38,650 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:41:38,651 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:41:38,651 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:41:38,652 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:41:38,652 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:41:38,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:41:38,653 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:41:38,654 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:41:38,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:41:38,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:41:38,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:41:38,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:41:38,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:41:38,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:41:38,656 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:41:38,656 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:41:38,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:41:38,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:41:38,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:41:38,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:41:38,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:41:38,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:41:38,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:41:38,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:41:38,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:41:38,660 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:41:38,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:41:38,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:41:38,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:41:38,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:41:38,661 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f22151260432e5b71f08e38556ae1504245a6b14 [2021-10-16 02:41:39,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:41:39,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:41:39,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:41:39,056 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:41:39,057 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:41:39,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2021-10-16 02:41:39,149 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/data/0297029ca/93ef1242a029475fad19e0e8b5173d02/FLAGb8353593d [2021-10-16 02:41:39,720 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:41:39,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2021-10-16 02:41:39,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/data/0297029ca/93ef1242a029475fad19e0e8b5173d02/FLAGb8353593d [2021-10-16 02:41:40,054 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/data/0297029ca/93ef1242a029475fad19e0e8b5173d02 [2021-10-16 02:41:40,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:41:40,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:41:40,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:41:40,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:41:40,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:41:40,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cca892e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40, skipping insertion in model container [2021-10-16 02:41:40,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:41:40,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:41:40,348 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2021-10-16 02:41:40,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:41:40,363 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:41:40,377 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2021-10-16 02:41:40,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:41:40,392 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:41:40,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40 WrapperNode [2021-10-16 02:41:40,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:41:40,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:41:40,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:41:40,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:41:40,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:41:40,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:41:40,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:41:40,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:41:40,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:41:40,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:41:40,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:41:40,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:41:40,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (1/1) ... [2021-10-16 02:41:40,495 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:41:40,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:41:40,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:41:40,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:41:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:41:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:41:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:41:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:41:40,893 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:41:40,893 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:41:40,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:40 BoogieIcfgContainer [2021-10-16 02:41:40,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:41:40,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:41:40,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:41:40,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:41:40,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:41:40" (1/3) ... [2021-10-16 02:41:40,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6ab09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:41:40, skipping insertion in model container [2021-10-16 02:41:40,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:41:40" (2/3) ... [2021-10-16 02:41:40,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6ab09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:41:40, skipping insertion in model container [2021-10-16 02:41:40,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:40" (3/3) ... [2021-10-16 02:41:40,908 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark52_polynomial.i [2021-10-16 02:41:40,914 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:41:40,915 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-16 02:41:40,973 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:41:40,981 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:41:40,982 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-16 02:41:40,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 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) [2021-10-16 02:41:41,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:41:41,004 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:41:41,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:41:41,005 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-16 02:41:41,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:41:41,012 INFO L82 PathProgramCache]: Analyzing trace with hash 67499, now seen corresponding path program 1 times [2021-10-16 02:41:41,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:41:41,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733922044] [2021-10-16 02:41:41,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:41:41,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:41:41,136 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:41:41,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163615959] [2021-10-16 02:41:41,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:41:41,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:41:41,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:41:41,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:41:41,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:41:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:41:41,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:41:41,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:41:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:41,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:41:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:41:41,406 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:41:41,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733922044] [2021-10-16 02:41:41,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:41:41,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163615959] [2021-10-16 02:41:41,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163615959] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:41:41,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:41:41,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:41:41,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915951157] [2021-10-16 02:41:41,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:41:41,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:41:41,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:41:41,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:41:41,434 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-16 02:41:41,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:41:41,517 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-10-16 02:41:41,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:41:41,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 3 [2021-10-16 02:41:41,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:41:41,527 INFO L225 Difference]: With dead ends: 22 [2021-10-16 02:41:41,528 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:41:41,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:41:41,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:41:41,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:41:41,557 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) [2021-10-16 02:41:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:41:41,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-10-16 02:41:41,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:41:41,559 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:41:41,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-16 02:41:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:41:41,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:41:41,563 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:41:41,564 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:41:41,564 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:41:41,564 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:41:41,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:41:41,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-16 02:41:41,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:41:41,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:41:41,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:41:41,849 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-16 02:41:41,859 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:41:41,859 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-16 02:41:41,859 INFO L857 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-16 02:41:41,859 INFO L857 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-10-16 02:41:41,860 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-16 02:41:41,860 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-16 02:41:41,860 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-16 02:41:41,860 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:41:41,861 INFO L860 garLoopResultBuilder]: At program point L26(lines 19 27) the Hoare annotation is: true [2021-10-16 02:41:41,861 INFO L857 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-10-16 02:41:41,861 INFO L857 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2021-10-16 02:41:41,862 INFO L853 garLoopResultBuilder]: At program point L22-4(lines 22 24) the Hoare annotation is: (<= (* ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~i~0) 2147483647) [2021-10-16 02:41:41,862 INFO L857 garLoopResultBuilder]: For program point L22-5(lines 22 24) no Hoare annotation was computed. [2021-10-16 02:41:41,867 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:41:41,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:41:41 BoogieIcfgContainer [2021-10-16 02:41:41,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:41:41,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:41:41,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:41:41,883 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:41:41,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:41:40" (3/4) ... [2021-10-16 02:41:41,886 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:41:41,896 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-16 02:41:41,897 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:41:41,897 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:41:41,897 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:41:41,953 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:41:41,960 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:41:41,962 INFO L168 Benchmark]: Toolchain (without parser) took 1899.15 ms. Allocated memory is still 107.0 MB. Free memory was 65.5 MB in the beginning and 39.2 MB in the end (delta: 26.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:41:41,963 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 81.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:41:41,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.18 ms. Allocated memory is still 107.0 MB. Free memory was 65.2 MB in the beginning and 81.8 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:41:41,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.21 ms. Allocated memory is still 107.0 MB. Free memory was 81.8 MB in the beginning and 80.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:41:41,966 INFO L168 Benchmark]: Boogie Preprocessor took 41.10 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 79.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:41:41,970 INFO L168 Benchmark]: RCFGBuilder took 412.98 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 68.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:41:41,972 INFO L168 Benchmark]: TraceAbstraction took 982.60 ms. Allocated memory is still 107.0 MB. Free memory was 68.2 MB in the beginning and 41.6 MB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:41:41,973 INFO L168 Benchmark]: Witness Printer took 78.18 ms. Allocated memory is still 107.0 MB. Free memory was 41.6 MB in the beginning and 39.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:41:41,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 81.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 325.18 ms. Allocated memory is still 107.0 MB. Free memory was 65.2 MB in the beginning and 81.8 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.21 ms. Allocated memory is still 107.0 MB. Free memory was 81.8 MB in the beginning and 80.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.10 ms. Allocated memory is still 107.0 MB. Free memory was 80.4 MB in the beginning and 79.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 412.98 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 68.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 982.60 ms. Allocated memory is still 107.0 MB. Free memory was 68.2 MB in the beginning and 41.6 MB in the end (delta: 26.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 78.18 ms. Allocated memory is still 107.0 MB. Free memory was 41.6 MB in the beginning and 39.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 896.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 10.6ms, AutomataDifference: 113.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 57.6ms, InitialAbstractionConstructionTime: 11.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 16 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 13.0ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 37.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 6.0ms SsaConstructionTime, 14.0ms SatisfiabilityAnalysisTime, 203.5ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 1 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: i * i <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:41:41,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05011f3c-250a-49d9-8ada-8d1ade1d2ec3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...