./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --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 0.2.0-7b2dab5 [2021-10-11 02:31:37,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:37,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:37,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:37,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:37,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:37,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:37,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:37,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:37,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:37,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:37,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:37,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:37,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:37,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:37,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:37,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:37,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:37,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:37,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:37,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:37,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:37,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:37,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:37,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:37,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:37,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:37,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:37,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:37,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:37,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:37,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:37,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:37,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:37,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:37,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:37,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:37,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:37,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:37,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:37,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:37,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:37,801 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:37,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:37,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:37,806 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:37,806 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:37,806 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:37,806 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:37,807 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:37,813 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:37,813 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:37,815 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:37,815 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:37,815 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:37,815 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:37,816 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:37,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:37,817 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:37,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:37,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:37,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:37,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:37,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:37,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:37,818 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:37,819 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:37,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:37,819 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:37,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:37,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:37,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:37,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:37,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:37,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:37,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:37,821 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:37,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:37,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:37,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:37,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:37,823 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_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f22151260432e5b71f08e38556ae1504245a6b14 [2021-10-11 02:31:38,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:38,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:38,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:38,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:38,134 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:38,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2021-10-11 02:31:38,204 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/data/d9dea3548/39ccf289a16d4db8a05267c7bccb259c/FLAG113b8485c [2021-10-11 02:31:38,696 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:38,697 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2021-10-11 02:31:38,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/data/d9dea3548/39ccf289a16d4db8a05267c7bccb259c/FLAG113b8485c [2021-10-11 02:31:39,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/data/d9dea3548/39ccf289a16d4db8a05267c7bccb259c [2021-10-11 02:31:39,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:39,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:39,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:39,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:39,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:39,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5b8eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39, skipping insertion in model container [2021-10-11 02:31:39,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:39,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:39,261 WARN L226 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_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2021-10-11 02:31:39,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:39,278 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:39,291 WARN L226 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_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2021-10-11 02:31:39,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:39,308 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:39,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39 WrapperNode [2021-10-11 02:31:39,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:39,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:39,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:39,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:39,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:39,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:39,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:39,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:39,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... [2021-10-11 02:31:39,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:39,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:39,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:39,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:39,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:31:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:31:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:39,649 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:39,649 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:31:39,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:39 BoogieIcfgContainer [2021-10-11 02:31:39,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:39,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:39,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:39,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:39,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:39" (1/3) ... [2021-10-11 02:31:39,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781b1eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:39, skipping insertion in model container [2021-10-11 02:31:39,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:39" (2/3) ... [2021-10-11 02:31:39,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781b1eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:39, skipping insertion in model container [2021-10-11 02:31:39,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:39" (3/3) ... [2021-10-11 02:31:39,662 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark52_polynomial.i [2021-10-11 02:31:39,676 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:39,679 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:31:39,688 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:31:39,710 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:39,710 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:39,710 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:39,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:39,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:39,711 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:39,711 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:39,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:39,724 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:31:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:31:39,729 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:39,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:31:39,730 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:39,736 INFO L82 PathProgramCache]: Analyzing trace with hash 59349214, now seen corresponding path program 1 times [2021-10-11 02:31:39,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:39,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579401471] [2021-10-11 02:31:39,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:39,829 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:31:39,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814433656] [2021-10-11 02:31:39,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:31:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:39,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:31:39,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:39,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:39,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579401471] [2021-10-11 02:31:39,984 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:31:39,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814433656] [2021-10-11 02:31:39,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:39,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-11 02:31:39,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753405870] [2021-10-11 02:31:39,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:39,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:40,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:40,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:40,033 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2021-10-11 02:31:40,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:40,065 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2021-10-11 02:31:40,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:40,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:31:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:40,075 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:31:40,076 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:31:40,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:40,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:31:40,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:31:40,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:31:40,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:31:40,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-10-11 02:31:40,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:40,128 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:31:40,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:40,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:31:40,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:31:40,129 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:40,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:31:40,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:31:40,355 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:40,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:40,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1839242300, now seen corresponding path program 1 times [2021-10-11 02:31:40,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:40,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88491067] [2021-10-11 02:31:40,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:40,366 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:31:40,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854626352] [2021-10-11 02:31:40,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:31:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:40,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-11 02:31:40,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:40,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:31:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:40,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:40,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88491067] [2021-10-11 02:31:40,583 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:31:40,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854626352] [2021-10-11 02:31:40,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1978199298] [2021-10-11 02:31:40,609 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:31:40,610 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:31:40,615 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:31:40,620 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:31:40,621 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:31:41,060 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:31:41,214 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-10-11 02:31:41,567 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-10-11 02:31:41,802 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2021-10-11 02:31:41,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:31:41,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 11 [2021-10-11 02:31:41,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758573910] [2021-10-11 02:31:41,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:41,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:41,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:41,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:31:41,809 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2021-10-11 02:31:41,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:41,837 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2021-10-11 02:31:41,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:31:41,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2021-10-11 02:31:41,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:41,839 INFO L225 Difference]: With dead ends: 7 [2021-10-11 02:31:41,839 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:31:41,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:31:41,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:31:41,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:31:41,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:31:41,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:31:41,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-11 02:31:41,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:41,849 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:31:41,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:41,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:31:41,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:31:42,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:31:42,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:31:42,213 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-10-11 02:31:42,216 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:31:42,216 INFO L262 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-11 02:31:42,216 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-11 02:31:42,216 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:31:42,216 INFO L265 CegarLoopResult]: At program point L26(lines 19 27) the Hoare annotation is: true [2021-10-11 02:31:42,216 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-10-11 02:31:42,218 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (<= |#t~string1.offset| 0) (<= |#t~string0.offset| 0) (<= 0 |#t~string0.offset|) (let ((.cse12 (select |#memory_int| |#t~string0.base|))) (let ((.cse0 (= |#NULL.base| 0)) (.cse1 (= (select .cse12 |#t~string0.offset|) 48)) (.cse2 (= (select .cse12 (+ |#t~string0.offset| 1)) 0)) (.cse3 (= (select |#valid| 0) 0)) (.cse4 (= (select |#length| |#t~string1.base|) 25)) (.cse5 (= 2 (select |#length| |#t~string0.base|))) (.cse6 (< |#StackHeapBarrier| |#t~string0.base|)) (.cse7 (= (select |#valid| |#t~string0.base|) 1)) (.cse8 (< 0 |#StackHeapBarrier|)) (.cse9 (< |#StackHeapBarrier| |#t~string1.base|)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (= (select |#valid| |#t~string1.base|) 1))) (or (and (< 0 (+ ULTIMATE.start_main_~i~0 10)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (< ULTIMATE.start_main_~i~0 10) .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (< (* ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~i~0) (+ (* 2 ULTIMATE.start_main_~i~0) 99)))))) (<= 0 |#t~string1.offset|)) [2021-10-11 02:31:42,222 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2021-10-11 02:31:42,223 INFO L262 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-10-11 02:31:42,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:42 BoogieIcfgContainer [2021-10-11 02:31:42,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:42,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:42,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:42,276 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:42,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:39" (3/4) ... [2021-10-11 02:31:42,279 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:31:42,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:31:42,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:31:42,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:31:42,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:31:42,319 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008e27ab-69ac-4ee9-898f-0ce2c9e1e331/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:31:42,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:42,321 INFO L168 Benchmark]: Toolchain (without parser) took 3247.07 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 84.7 MB in the beginning and 64.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 48.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:42,321 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 107.0 MB. Free memory is still 63.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:42,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.66 ms. Allocated memory is still 107.0 MB. Free memory was 84.7 MB in the beginning and 83.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:42,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.96 ms. Allocated memory is still 107.0 MB. Free memory was 83.3 MB in the beginning and 81.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:42,323 INFO L168 Benchmark]: Boogie Preprocessor took 19.76 ms. Allocated memory is still 107.0 MB. Free memory was 81.9 MB in the beginning and 81.2 MB in the end (delta: 756.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:42,324 INFO L168 Benchmark]: RCFGBuilder took 289.25 ms. Allocated memory is still 107.0 MB. Free memory was 80.8 MB in the beginning and 68.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:42,324 INFO L168 Benchmark]: TraceAbstraction took 2620.71 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 68.0 MB in the beginning and 66.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:42,325 INFO L168 Benchmark]: Witness Printer took 44.15 ms. Allocated memory is still 134.2 MB. Free memory was 66.2 MB in the beginning and 64.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:42,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 107.0 MB. Free memory is still 63.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 234.66 ms. Allocated memory is still 107.0 MB. Free memory was 84.7 MB in the beginning and 83.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.96 ms. Allocated memory is still 107.0 MB. Free memory was 83.3 MB in the beginning and 81.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.76 ms. Allocated memory is still 107.0 MB. Free memory was 81.9 MB in the beginning and 81.2 MB in the end (delta: 756.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 289.25 ms. Allocated memory is still 107.0 MB. Free memory was 80.8 MB in the beginning and 68.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2620.71 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 68.0 MB in the beginning and 66.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. * Witness Printer took 44.15 ms. Allocated memory is still 134.2 MB. Free memory was 66.2 MB in the beginning and 64.1 MB in the end (delta: 2.1 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: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((("benchmark52_polynomial.c" <= 0 && "0" <= 0) && 0 <= "0") && ((((((((((((((0 < i + 10 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["benchmark52_polynomial.c"] == 25) && 2 == unknown-#length-unknown["0"]) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && i < 10) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "benchmark52_polynomial.c") && #NULL == 0) && \valid["benchmark52_polynomial.c"] == 1) || ((((((((((((#NULL == 0 && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["benchmark52_polynomial.c"] == 25) && 2 == unknown-#length-unknown["0"]) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "benchmark52_polynomial.c") && #NULL == 0) && \valid["benchmark52_polynomial.c"] == 1) && i * i < 2 * i + 99))) && 0 <= "benchmark52_polynomial.c" - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 3 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 146 HoareAnnotationTreeSize, 2 FomulaSimplifications, 154 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 351 SizeOfPredicates, 4 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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: OVERALL_TIME[ms]: 452, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 6, TOOLS_POST_TIME[ms]: 227, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 6, TOOLS_QUANTIFIERELIM_TIME[ms]: 218, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 192, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 16, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 147, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 16, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 18, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 198, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 197, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 8, DAG_COMPRESSION_PROCESSED_NODES: 33, DAG_COMPRESSION_RETAINED_NODES: 18, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...