./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw --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 676276db79a43f24ac4768848febffe3dd303b6e2c16071dede4e51ae957576d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:44:27,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:44:27,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:44:27,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:44:27,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:44:27,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:44:27,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:44:27,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:44:27,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:44:27,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:44:27,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:44:27,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:44:27,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:44:27,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:44:27,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:44:27,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:44:27,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:44:27,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:44:27,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:44:27,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:44:27,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:44:27,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:44:27,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:44:27,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:44:27,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:44:27,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:44:27,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:44:27,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:44:27,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:44:27,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:44:27,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:44:27,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:44:27,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:44:27,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:44:27,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:44:27,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:44:27,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:44:27,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:44:27,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:44:27,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:44:27,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:44:27,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-20 05:44:27,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:44:27,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:44:27,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:44:27,272 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:44:27,272 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:44:27,272 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:44:27,272 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:44:27,272 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:44:27,273 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:44:27,276 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:44:27,277 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:44:27,277 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:44:27,278 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:44:27,278 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:44:27,278 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:44:27,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:44:27,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-20 05:44:27,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:44:27,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:44:27,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:44:27,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:44:27,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:44:27,280 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-20 05:44:27,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:44:27,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:44:27,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:44:27,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:44:27,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:44:27,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:44:27,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:44:27,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:44:27,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:44:27,284 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:44:27,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:44:27,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:44:27,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:44:27,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:44:27,285 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_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676276db79a43f24ac4768848febffe3dd303b6e2c16071dede4e51ae957576d [2021-10-20 05:44:27,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:44:27,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:44:27,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:44:27,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:44:27,583 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:44:27,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-10-20 05:44:27,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/data/29c7ba0b1/dfc1c22fa07e43d987ad7ca1e3ab5d4a/FLAGe01519b51 [2021-10-20 05:44:28,134 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:44:28,134 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-10-20 05:44:28,141 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/data/29c7ba0b1/dfc1c22fa07e43d987ad7ca1e3ab5d4a/FLAGe01519b51 [2021-10-20 05:44:28,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/data/29c7ba0b1/dfc1c22fa07e43d987ad7ca1e3ab5d4a [2021-10-20 05:44:28,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:44:28,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:44:28,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:44:28,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:44:28,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:44:28,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bcaeb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28, skipping insertion in model container [2021-10-20 05:44:28,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:44:28,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:44:28,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:44:28,738 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:44:28,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:44:28,773 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:44:28,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28 WrapperNode [2021-10-20 05:44:28,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:44:28,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:44:28,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:44:28,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:44:28,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:44:28,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:44:28,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:44:28,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:44:28,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:44:28,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:44:28,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:44:28,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:44:28,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (1/1) ... [2021-10-20 05:44:28,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:44:28,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:44:28,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:44:28,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:44:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:44:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:44:30,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:44:30,284 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-20 05:44:30,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:44:30 BoogieIcfgContainer [2021-10-20 05:44:30,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:44:30,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:44:30,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:44:30,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:44:30,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:44:28" (1/3) ... [2021-10-20 05:44:30,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d4ec4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:44:30, skipping insertion in model container [2021-10-20 05:44:30,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:44:28" (2/3) ... [2021-10-20 05:44:30,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d4ec4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:44:30, skipping insertion in model container [2021-10-20 05:44:30,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:44:30" (3/3) ... [2021-10-20 05:44:30,297 INFO L111 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-10-20 05:44:30,305 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:44:30,306 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-20 05:44:30,368 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:44:30,379 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, mAutomataTypeConcurrency=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 [2021-10-20 05:44:30,379 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-20 05:44:30,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 17 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) [2021-10-20 05:44:30,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-20 05:44:30,400 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:44:30,401 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-20 05:44:30,402 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)] === [2021-10-20 05:44:30,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:44:30,410 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2021-10-20 05:44:30,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:44:30,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527684562] [2021-10-20 05:44:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:44:30,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:44:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:44:30,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:44:30,551 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:44:30,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527684562] [2021-10-20 05:44:30,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527684562] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:44:30,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:44:30,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-20 05:44:30,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029378345] [2021-10-20 05:44:30,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:44:30,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:44:30,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:44:30,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:44:30,579 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 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) [2021-10-20 05:44:30,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:44:30,634 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2021-10-20 05:44:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:44:30,636 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 [2021-10-20 05:44:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:44:30,648 INFO L225 Difference]: With dead ends: 18 [2021-10-20 05:44:30,648 INFO L226 Difference]: Without dead ends: 15 [2021-10-20 05:44:30,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:44:30,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-20 05:44:30,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-20 05:44:30,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 14 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) [2021-10-20 05:44:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-20 05:44:30,683 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 3 [2021-10-20 05:44:30,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:44:30,685 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-20 05:44:30,685 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) [2021-10-20 05:44:30,685 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-20 05:44:30,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 05:44:30,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:44:30,686 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 05:44:30,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 05:44:30,689 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)] === [2021-10-20 05:44:30,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:44:30,693 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2021-10-20 05:44:30,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:44:30,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885100350] [2021-10-20 05:44:30,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:44:30,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:44:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:44:30,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:44:30,724 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:44:30,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885100350] [2021-10-20 05:44:30,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885100350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:44:30,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:44:30,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-20 05:44:30,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554717558] [2021-10-20 05:44:30,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:44:30,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:44:30,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:44:30,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:44:30,729 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2021-10-20 05:44:30,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:44:30,762 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-10-20 05:44:30,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:44:30,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2021-10-20 05:44:30,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:44:30,767 INFO L225 Difference]: With dead ends: 25 [2021-10-20 05:44:30,767 INFO L226 Difference]: Without dead ends: 23 [2021-10-20 05:44:30,768 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:44:30,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-20 05:44:30,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2021-10-20 05:44:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.4) internal successors, (21), 17 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) [2021-10-20 05:44:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-20 05:44:30,777 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 4 [2021-10-20 05:44:30,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:44:30,778 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-20 05:44:30,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2021-10-20 05:44:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-20 05:44:30,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-20 05:44:30,780 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:44:30,780 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-20 05:44:30,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-20 05:44:30,781 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-20 05:44:30,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:44:30,783 INFO L82 PathProgramCache]: Analyzing trace with hash 935027559, now seen corresponding path program 1 times [2021-10-20 05:44:30,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:44:30,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126482937] [2021-10-20 05:44:30,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:44:30,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:44:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:44:30,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:44:30,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:44:30,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126482937] [2021-10-20 05:44:30,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126482937] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:44:30,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:44:30,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-20 05:44:30,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587047091] [2021-10-20 05:44:30,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:44:30,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:44:30,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:44:30,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:44:30,981 INFO L87 Difference]: Start difference. First operand 18 states and 21 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) [2021-10-20 05:44:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:44:31,007 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-10-20 05:44:31,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:44:31,008 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 [2021-10-20 05:44:31,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:44:31,010 INFO L225 Difference]: With dead ends: 22 [2021-10-20 05:44:31,010 INFO L226 Difference]: Without dead ends: 21 [2021-10-20 05:44:31,012 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:44:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-20 05:44:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-20 05:44:31,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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) [2021-10-20 05:44:31,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-10-20 05:44:31,018 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 6 [2021-10-20 05:44:31,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:44:31,019 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-10-20 05:44:31,019 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) [2021-10-20 05:44:31,019 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-10-20 05:44:31,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-20 05:44:31,020 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:44:31,020 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:44:31,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-20 05:44:31,020 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-20 05:44:31,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:44:31,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1078916483, now seen corresponding path program 1 times [2021-10-20 05:44:31,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:44:31,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771498018] [2021-10-20 05:44:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:44:31,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:44:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:44:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:44:31,099 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:44:31,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771498018] [2021-10-20 05:44:31,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771498018] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:44:31,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:44:31,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 05:44:31,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800922380] [2021-10-20 05:44:31,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:44:31,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:44:31,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:44:31,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:44:31,101 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:44:31,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:44:31,126 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-10-20 05:44:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:44:31,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-20 05:44:31,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:44:31,127 INFO L225 Difference]: With dead ends: 20 [2021-10-20 05:44:31,128 INFO L226 Difference]: Without dead ends: 19 [2021-10-20 05:44:31,128 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-20 05:44:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-20 05:44:31,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-20 05:44:31,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:44:31,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-10-20 05:44:31,142 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 7 [2021-10-20 05:44:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:44:31,142 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-20 05:44:31,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:44:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-10-20 05:44:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-20 05:44:31,143 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:44:31,143 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:44:31,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-20 05:44:31,144 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-20 05:44:31,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:44:31,145 INFO L82 PathProgramCache]: Analyzing trace with hash -620780291, now seen corresponding path program 1 times [2021-10-20 05:44:31,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:44:31,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456295570] [2021-10-20 05:44:31,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:44:31,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:44:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:44:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:44:31,209 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:44:31,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456295570] [2021-10-20 05:44:31,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456295570] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:44:31,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:44:31,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 05:44:31,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80416264] [2021-10-20 05:44:31,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:44:31,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:44:31,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:44:31,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:44:31,213 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-10-20 05:44:31,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:44:31,243 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2021-10-20 05:44:31,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:44:31,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2021-10-20 05:44:31,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:44:31,246 INFO L225 Difference]: With dead ends: 27 [2021-10-20 05:44:31,246 INFO L226 Difference]: Without dead ends: 26 [2021-10-20 05:44:31,247 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:44:31,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-20 05:44:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 16. [2021-10-20 05:44:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 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) [2021-10-20 05:44:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-20 05:44:31,255 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 8 [2021-10-20 05:44:31,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:44:31,255 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-20 05:44:31,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-10-20 05:44:31,256 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-10-20 05:44:31,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-20 05:44:31,257 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:44:31,257 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:44:31,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-20 05:44:31,258 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-20 05:44:31,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:44:31,259 INFO L82 PathProgramCache]: Analyzing trace with hash -620774109, now seen corresponding path program 1 times [2021-10-20 05:44:31,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:44:31,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471272060] [2021-10-20 05:44:31,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:44:31,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:44:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:44:31,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:44:31,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:44:31,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471272060] [2021-10-20 05:44:31,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471272060] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:44:31,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:44:31,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 05:44:31,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732202630] [2021-10-20 05:44:31,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:44:31,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:44:31,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:44:31,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:44:31,356 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-10-20 05:44:31,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:44:31,387 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-10-20 05:44:31,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:44:31,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2021-10-20 05:44:31,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:44:31,391 INFO L225 Difference]: With dead ends: 22 [2021-10-20 05:44:31,391 INFO L226 Difference]: Without dead ends: 21 [2021-10-20 05:44:31,392 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:44:31,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-20 05:44:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2021-10-20 05:44:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 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) [2021-10-20 05:44:31,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-20 05:44:31,399 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2021-10-20 05:44:31,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:44:31,400 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-20 05:44:31,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-10-20 05:44:31,400 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-20 05:44:31,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-20 05:44:31,401 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:44:31,401 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:44:31,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-20 05:44:31,402 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-20 05:44:31,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:44:31,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1751613633, now seen corresponding path program 1 times [2021-10-20 05:44:31,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:44:31,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991902318] [2021-10-20 05:44:31,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:44:31,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:44:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:44:31,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:44:31,484 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:44:31,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991902318] [2021-10-20 05:44:31,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991902318] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:44:31,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966462989] [2021-10-20 05:44:31,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:44:31,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:44:31,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:44:31,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:44:31,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-20 05:44:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:44:31,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:44:31,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:44:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:44:31,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:44:31,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:44:31,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966462989] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-20 05:44:31,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:44:31,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2, 2] total 6 [2021-10-20 05:44:31,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205441485] [2021-10-20 05:44:31,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:44:31,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:44:31,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:44:31,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:44:31,864 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-10-20 05:44:31,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:44:31,895 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-10-20 05:44:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:44:31,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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 9 [2021-10-20 05:44:31,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:44:31,896 INFO L225 Difference]: With dead ends: 25 [2021-10-20 05:44:31,898 INFO L226 Difference]: Without dead ends: 18 [2021-10-20 05:44:31,898 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 30.1ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:44:31,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-20 05:44:31,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-20 05:44:31,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 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) [2021-10-20 05:44:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-10-20 05:44:31,903 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2021-10-20 05:44:31,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:44:31,904 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-10-20 05:44:31,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-10-20 05:44:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-20 05:44:31,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-20 05:44:31,905 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:44:31,905 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:44:31,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-20 05:44:32,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:44:32,120 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-20 05:44:32,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:44:32,121 INFO L82 PathProgramCache]: Analyzing trace with hash 430602687, now seen corresponding path program 1 times [2021-10-20 05:44:32,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:44:32,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775381421] [2021-10-20 05:44:32,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:44:32,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:44:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:44:32,198 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:44:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:44:32,263 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-20 05:44:32,266 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:44:32,268 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-20 05:44:32,270 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-20 05:44:32,270 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-20 05:44:32,270 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-20 05:44:32,271 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-20 05:44:32,271 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-20 05:44:32,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-20 05:44:32,278 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:44:32,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:44:32 BoogieIcfgContainer [2021-10-20 05:44:32,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:44:32,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:44:32,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:44:32,301 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:44:32,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:44:30" (3/4) ... [2021-10-20 05:44:32,305 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:44:32,361 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:44:32,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:44:32,362 INFO L168 Benchmark]: Toolchain (without parser) took 3833.53 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 67.3 MB in the beginning and 43.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:44:32,363 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 109.1 MB. Free memory is still 83.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:44:32,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.28 ms. Allocated memory is still 109.1 MB. Free memory was 67.1 MB in the beginning and 84.9 MB in the end (delta: -17.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:44:32,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.06 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:44:32,364 INFO L168 Benchmark]: Boogie Preprocessor took 27.64 ms. Allocated memory is still 109.1 MB. Free memory was 83.3 MB in the beginning and 81.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:44:32,364 INFO L168 Benchmark]: RCFGBuilder took 1444.32 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 81.9 MB in the beginning and 83.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:44:32,365 INFO L168 Benchmark]: TraceAbstraction took 2010.73 ms. Allocated memory is still 132.1 MB. Free memory was 83.4 MB in the beginning and 45.6 MB in the end (delta: 37.8 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:44:32,365 INFO L168 Benchmark]: Witness Printer took 60.84 ms. Allocated memory is still 132.1 MB. Free memory was 45.6 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:44:32,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 109.1 MB. Free memory is still 83.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.28 ms. Allocated memory is still 109.1 MB. Free memory was 67.1 MB in the beginning and 84.9 MB in the end (delta: -17.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.06 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.64 ms. Allocated memory is still 109.1 MB. Free memory was 83.3 MB in the beginning and 81.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1444.32 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 81.9 MB in the beginning and 83.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2010.73 ms. Allocated memory is still 132.1 MB. Free memory was 83.4 MB in the beginning and 45.6 MB in the end (delta: 37.8 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. * Witness Printer took 60.84 ms. Allocated memory is still 132.1 MB. Free memory was 45.6 MB in the beginning and 43.5 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 - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND TRUE __VERIFIER_nondet_int() [L18] int y = __VERIFIER_nondet_int(); [L19] COND FALSE !(__VERIFIER_nondet_int()) [L34] COND TRUE __VERIFIER_nondet_int() [L35] COND FALSE !(__VERIFIER_nondet_int()) [L38] y = 5 [L48] return y; [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 [L80] COND TRUE x > 0 [L81] x - d - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1909.0ms, OverallIterations: 8, TraceHistogramMax: 2, EmptinessCheckTime: 14.9ms, AutomataDifference: 302.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 52 SDtfs, 76 SDslu, 28 SDs, 0 SdLazy, 113 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 125.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 60.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=3, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 65.4ms AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.9ms SsaConstructionTime, 322.9ms SatisfiabilityAnalysisTime, 574.3ms InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 2/6 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: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-20 05:44:32,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd87035-c164-49ab-98c6-e02350e0560f/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...