./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MenloPark.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/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_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/MenloPark.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/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 64bit --witnessprinter.graph.data.programhash 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:23:26,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:23:26,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:23:26,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:23:26,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:23:26,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:23:26,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:23:26,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:23:26,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:23:26,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:23:26,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:23:26,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:23:26,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:23:26,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:23:26,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:23:26,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:23:26,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:23:26,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:23:26,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:23:26,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:23:26,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:23:26,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:23:26,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:23:26,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:23:26,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:23:26,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:23:26,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:23:26,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:23:26,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:23:26,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:23:26,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:23:26,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:23:26,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:23:26,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:23:26,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:23:26,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:23:26,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:23:26,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:23:26,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:23:26,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:23:26,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:23:26,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-16 02:23:26,811 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:23:26,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:23:26,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:23:26,813 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:23:26,813 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:23:26,814 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:23:26,814 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:23:26,814 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:23:26,814 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:23:26,815 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:23:26,816 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:23:26,816 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:23:26,816 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:23:26,817 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:23:26,817 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:23:26,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:23:26,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:23:26,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:23:26,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:23:26,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:23:26,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:23:26,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:23:26,820 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:23:26,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:23:26,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:23:26,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:23:26,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:23:26,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:23:26,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:23:26,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:23:26,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:23:26,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:23:26,824 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:23:26,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:23:26,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:23:26,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:23:26,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:23:26,825 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_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 [2021-10-16 02:23:27,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:23:27,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:23:27,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:23:27,250 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:23:27,251 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:23:27,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/termination-crafted/MenloPark.c [2021-10-16 02:23:27,339 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/data/69720b2a7/296f7eb0fd294eb683f0d15185ec62be/FLAGcd5300e70 [2021-10-16 02:23:27,851 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:23:27,852 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/sv-benchmarks/c/termination-crafted/MenloPark.c [2021-10-16 02:23:27,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/data/69720b2a7/296f7eb0fd294eb683f0d15185ec62be/FLAGcd5300e70 [2021-10-16 02:23:28,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/data/69720b2a7/296f7eb0fd294eb683f0d15185ec62be [2021-10-16 02:23:28,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:23:28,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:23:28,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:23:28,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:23:28,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:23:28,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35187a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28, skipping insertion in model container [2021-10-16 02:23:28,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:23:28,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:23:28,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:23:28,460 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:23:28,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:23:28,492 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:23:28,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28 WrapperNode [2021-10-16 02:23:28,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:23:28,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:23:28,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:23:28,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:23:28,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:23:28,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:23:28,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:23:28,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:23:28,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:23:28,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:23:28,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:23:28,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:23:28,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (1/1) ... [2021-10-16 02:23:28,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:23:28,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:23:28,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:23:28,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:23:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:23:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:23:28,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:23:28,957 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-16 02:23:28,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:23:28 BoogieIcfgContainer [2021-10-16 02:23:28,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:23:28,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:23:28,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:23:28,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:23:28,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:23:28" (1/3) ... [2021-10-16 02:23:28,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7d888a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:23:28, skipping insertion in model container [2021-10-16 02:23:28,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:23:28" (2/3) ... [2021-10-16 02:23:28,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7d888a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:23:28, skipping insertion in model container [2021-10-16 02:23:28,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:23:28" (3/3) ... [2021-10-16 02:23:28,974 INFO L111 eAbstractionObserver]: Analyzing ICFG MenloPark.c [2021-10-16 02:23:28,981 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:23:28,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:23:29,076 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:23:29,108 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 02:23:29,109 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:23:29,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.875) internal successors, (15), 14 states have internal predecessors, (15), 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 02:23:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:23:29,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:29,139 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:23:29,140 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:23:29,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:29,154 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-16 02:23:29,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:23:29,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561818198] [2021-10-16 02:23:29,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:29,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:23:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:29,341 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 02:23:29,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:23:29,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561818198] [2021-10-16 02:23:29,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561818198] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:29,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:29,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 02:23:29,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756867164] [2021-10-16 02:23:29,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:23:29,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:23:29,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:23:29,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:29,373 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.875) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 02:23:29,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:29,437 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-10-16 02:23:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:23:29,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 02:23:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:29,449 INFO L225 Difference]: With dead ends: 20 [2021-10-16 02:23:29,450 INFO L226 Difference]: Without dead ends: 17 [2021-10-16 02:23:29,460 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-16 02:23:29,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-16 02:23:29,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.6) internal successors, (16), 15 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 02:23:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-16 02:23:29,502 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2021-10-16 02:23:29,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:29,504 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-16 02:23:29,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 02:23:29,504 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-16 02:23:29,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:23:29,505 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:29,506 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:23:29,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:23:29,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:23:29,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:29,513 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-10-16 02:23:29,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:23:29,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538836434] [2021-10-16 02:23:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:29,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:23:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:29,586 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 02:23:29,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:23:29,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538836434] [2021-10-16 02:23:29,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538836434] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:29,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:29,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:23:29,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213873969] [2021-10-16 02:23:29,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:23:29,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:23:29,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:23:29,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:23:29,595 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 02:23:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:29,668 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-10-16 02:23:29,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:23:29,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-10-16 02:23:29,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:29,671 INFO L225 Difference]: With dead ends: 22 [2021-10-16 02:23:29,672 INFO L226 Difference]: Without dead ends: 21 [2021-10-16 02:23:29,673 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:23:29,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-16 02:23:29,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-10-16 02:23:29,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 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 02:23:29,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-16 02:23:29,681 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2021-10-16 02:23:29,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:29,681 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-16 02:23:29,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 02:23:29,682 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-16 02:23:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:23:29,683 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:29,683 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:23:29,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:23:29,685 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:23:29,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:29,686 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2021-10-16 02:23:29,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:23:29,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840080815] [2021-10-16 02:23:29,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:29,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:23:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:29,738 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 02:23:29,739 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:23:29,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840080815] [2021-10-16 02:23:29,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840080815] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:29,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:29,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 02:23:29,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918609389] [2021-10-16 02:23:29,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:23:29,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:23:29,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:23:29,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:29,754 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 02:23:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:29,796 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-10-16 02:23:29,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:23:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 5 [2021-10-16 02:23:29,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:29,798 INFO L225 Difference]: With dead ends: 20 [2021-10-16 02:23:29,798 INFO L226 Difference]: Without dead ends: 19 [2021-10-16 02:23:29,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-16 02:23:29,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-16 02:23:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5) internal successors, (18), 17 states have internal predecessors, (18), 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 02:23:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-16 02:23:29,806 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2021-10-16 02:23:29,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:29,806 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-16 02:23:29,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 02:23:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-16 02:23:29,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:23:29,808 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:29,808 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:23:29,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:23:29,808 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:23:29,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:29,810 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2021-10-16 02:23:29,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:23:29,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546177508] [2021-10-16 02:23:29,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:29,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:23:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:29,867 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 02:23:29,867 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:23:29,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546177508] [2021-10-16 02:23:29,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546177508] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:29,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:29,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 02:23:29,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654380026] [2021-10-16 02:23:29,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:23:29,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:23:29,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:23:29,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:29,871 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:29,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:29,896 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-10-16 02:23:29,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:23:29,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-16 02:23:29,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:29,897 INFO L225 Difference]: With dead ends: 20 [2021-10-16 02:23:29,898 INFO L226 Difference]: Without dead ends: 19 [2021-10-16 02:23:29,898 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:29,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-16 02:23:29,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-16 02:23:29,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 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 02:23:29,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-10-16 02:23:29,902 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2021-10-16 02:23:29,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:29,903 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-10-16 02:23:29,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:29,903 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-10-16 02:23:29,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:23:29,904 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:29,904 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:23:29,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 02:23:29,905 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:23:29,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:29,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1366846491, now seen corresponding path program 1 times [2021-10-16 02:23:29,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:23:29,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977670182] [2021-10-16 02:23:29,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:29,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:23:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:29,929 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 02:23:29,930 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:23:29,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977670182] [2021-10-16 02:23:29,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977670182] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:29,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:29,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 02:23:29,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247830429] [2021-10-16 02:23:29,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:23:29,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:23:29,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:23:29,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:29,933 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:29,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:29,954 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-10-16 02:23:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:23:29,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-16 02:23:29,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:29,955 INFO L225 Difference]: With dead ends: 22 [2021-10-16 02:23:29,955 INFO L226 Difference]: Without dead ends: 21 [2021-10-16 02:23:29,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:29,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-16 02:23:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-16 02:23:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-10-16 02:23:29,960 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2021-10-16 02:23:29,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:29,961 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-10-16 02:23:29,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:23:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-10-16 02:23:29,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:23:29,962 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:29,962 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:23:29,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 02:23:29,963 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:23:29,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:29,963 INFO L82 PathProgramCache]: Analyzing trace with hash 577431791, now seen corresponding path program 1 times [2021-10-16 02:23:29,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:23:29,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99437043] [2021-10-16 02:23:29,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:29,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:23:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:29,988 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 02:23:29,988 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:23:29,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99437043] [2021-10-16 02:23:29,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99437043] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:29,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:23:29,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 02:23:29,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094231473] [2021-10-16 02:23:29,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:23:29,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:23:29,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:23:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:29,991 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 02:23:30,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:30,030 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-10-16 02:23:30,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:23:30,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-10-16 02:23:30,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:30,034 INFO L225 Difference]: With dead ends: 22 [2021-10-16 02:23:30,035 INFO L226 Difference]: Without dead ends: 21 [2021-10-16 02:23:30,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:23:30,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-16 02:23:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-16 02:23:30,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 20 states have internal predecessors, (21), 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 02:23:30,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-10-16 02:23:30,045 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2021-10-16 02:23:30,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:30,046 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-10-16 02:23:30,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 02:23:30,047 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-10-16 02:23:30,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:23:30,048 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:23:30,048 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:23:30,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 02:23:30,049 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:23:30,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:23:30,050 INFO L82 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2021-10-16 02:23:30,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:23:30,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384743102] [2021-10-16 02:23:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:30,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:23:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:30,108 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:23:30,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384743102] [2021-10-16 02:23:30,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384743102] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:23:30,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174223982] [2021-10-16 02:23:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:23:30,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:23:30,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:23:30,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:23:30,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:23:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:23:30,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:23:30,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:23:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:30,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:23:30,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:23:30,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174223982] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:23:30,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1324660426] [2021-10-16 02:23:30,585 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-16 02:23:30,586 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:23:30,590 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:23:30,596 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:23:30,597 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:23:30,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:23:30,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 02:23:30,645 INFO L180 QuantifierPusher]: treesize reduction 7, result has 80.6 percent of original size [2021-10-16 02:23:30,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-10-16 02:23:30,653 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:23:30,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-10-16 02:23:30,661 INFO L180 QuantifierPusher]: treesize reduction 7, result has 86.0 percent of original size [2021-10-16 02:23:30,665 INFO L185 QuantifierPusher]: treesize reduction 23, result has 42.5 percent of original size 17 [2021-10-16 02:23:30,669 INFO L180 QuantifierPusher]: treesize reduction 30, result has 50.8 percent of original size [2021-10-16 02:23:30,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-10-16 02:23:30,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:23:30,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-10-16 02:23:30,737 INFO L180 QuantifierPusher]: treesize reduction 6, result has 94.1 percent of original size [2021-10-16 02:23:30,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-10-16 02:23:30,755 INFO L180 QuantifierPusher]: treesize reduction 11, result has 90.5 percent of original size [2021-10-16 02:23:30,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-10-16 02:23:30,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:23:30,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-10-16 02:23:30,811 INFO L180 QuantifierPusher]: treesize reduction 6, result has 94.1 percent of original size [2021-10-16 02:23:30,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-10-16 02:23:30,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:30,999 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-16 02:23:31,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1324660426] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:23:31,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-16 02:23:31,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 13 [2021-10-16 02:23:31,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283202885] [2021-10-16 02:23:31,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:23:31,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:23:31,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:23:31,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-10-16 02:23:31,411 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 02:23:31,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:23:31,485 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-10-16 02:23:31,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:23:31,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 10 [2021-10-16 02:23:31,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:23:31,486 INFO L225 Difference]: With dead ends: 21 [2021-10-16 02:23:31,486 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:23:31,487 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 495.2ms TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-10-16 02:23:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:23:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:23:31,488 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 02:23:31,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:23:31,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-16 02:23:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:23:31,489 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:23:31,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 02:23:31,490 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:23:31,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:23:31,493 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:23:31,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:23:31,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:23:31,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:23:31,507 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:23:31,508 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:23:31,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:23:31,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-16 02:23:31,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:23:31,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:23:31,733 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-16 02:23:31,733 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:23:31,734 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-16 02:23:31,734 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-16 02:23:31,734 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-10-16 02:23:31,734 INFO L857 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-10-16 02:23:31,734 INFO L857 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-16 02:23:31,735 INFO L857 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-10-16 02:23:31,735 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-16 02:23:31,735 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-16 02:23:31,735 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:23:31,735 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-16 02:23:31,735 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-16 02:23:31,736 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-10-16 02:23:31,736 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (<= ULTIMATE.start_main_~z~0 1) (<= 0 (+ ULTIMATE.start_main_~z~0 1)) (<= ULTIMATE.start_main_~y~0 100) (<= 99 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2021-10-16 02:23:31,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:23:31,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:23:31 BoogieIcfgContainer [2021-10-16 02:23:31,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:23:31,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:23:31,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:23:31,764 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:23:31,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:23:28" (3/4) ... [2021-10-16 02:23:31,768 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:23:31,778 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-16 02:23:31,778 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-16 02:23:31,778 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:23:31,822 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:23:31,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:23:31,824 INFO L168 Benchmark]: Toolchain (without parser) took 3606.29 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 52.3 MB in the beginning and 84.8 MB in the end (delta: -32.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:23:31,824 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:23:31,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.62 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 52.1 MB in the beginning and 95.2 MB in the end (delta: -43.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:31,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.61 ms. Allocated memory is still 117.4 MB. Free memory was 95.2 MB in the beginning and 94.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:23:31,825 INFO L168 Benchmark]: Boogie Preprocessor took 21.54 ms. Allocated memory is still 117.4 MB. Free memory was 94.0 MB in the beginning and 93.1 MB in the end (delta: 884.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:31,826 INFO L168 Benchmark]: RCFGBuilder took 404.78 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 84.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:31,826 INFO L168 Benchmark]: TraceAbstraction took 2801.11 ms. Allocated memory is still 117.4 MB. Free memory was 83.5 MB in the beginning and 86.9 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:23:31,826 INFO L168 Benchmark]: Witness Printer took 58.75 ms. Allocated memory is still 117.4 MB. Free memory was 86.9 MB in the beginning and 84.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:23:31,829 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.62 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 52.1 MB in the beginning and 95.2 MB in the end (delta: -43.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.61 ms. Allocated memory is still 117.4 MB. Free memory was 95.2 MB in the beginning and 94.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.54 ms. Allocated memory is still 117.4 MB. Free memory was 94.0 MB in the beginning and 93.1 MB in the end (delta: 884.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 404.78 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 84.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2801.11 ms. Allocated memory is still 117.4 MB. Free memory was 83.5 MB in the beginning and 86.9 MB in the end (delta: -3.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 58.75 ms. Allocated memory is still 117.4 MB. Free memory was 86.9 MB in the beginning and 84.8 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: - 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: 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 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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, 15 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2672.7ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 19.8ms, AutomataDifference: 413.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 23.9ms, InitialAbstractionConstructionTime: 14.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 57 SDtfs, 16 SDslu, 25 SDs, 0 SdLazy, 116 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 195.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 547.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=6, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 55.1ms AutomataMinimizationTime, 7 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 23 HoareAnnotationTreeSize, 1 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 4.2ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 13.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 14.1ms SsaConstructionTime, 76.7ms SatisfiabilityAnalysisTime, 661.5ms InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 0/6 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]: 415, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 10, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 25, TOOLS_POST_TIME[ms]: 136, 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: 25, TOOLS_QUANTIFIERELIM_TIME[ms]: 125, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 30, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 40, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME[ms]: 165, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 47, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 5, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 14, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 135, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 135, 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]: 10, DAG_COMPRESSION_PROCESSED_NODES: 102, DAG_COMPRESSION_RETAINED_NODES: 33, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((z <= 1 && 0 <= z + 1) && y <= 100) && 99 <= y) && x <= 2147483647) && 0 <= x + 2147483648 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:23:31,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c54ac29b-eb3f-455c-8ac3-f2ae2e73a9ad/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...