./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/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_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG --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-b2eff8b [2021-10-29 05:04:44,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:04:44,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:04:44,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:04:44,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:04:44,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:04:44,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:04:44,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:04:44,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:04:44,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:04:44,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:04:44,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:04:44,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:04:44,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:04:44,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:04:44,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:04:44,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:04:44,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:04:44,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:04:44,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:04:44,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:04:44,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:04:44,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:04:44,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:04:44,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:04:44,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:04:44,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:04:44,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:04:44,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:04:44,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:04:44,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:04:44,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:04:44,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:04:44,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:04:44,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:04:44,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:04:44,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:04:44,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:04:44,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:04:44,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:04:44,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:04:44,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-29 05:04:44,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:04:44,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:04:44,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:04:44,708 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:04:44,708 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:04:44,708 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:04:44,709 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:04:44,709 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:04:44,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:04:44,716 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:04:44,717 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:04:44,717 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:04:44,717 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:04:44,718 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:04:44,718 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:04:44,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:04:44,719 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:04:44,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:04:44,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:04:44,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:04:44,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:04:44,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:04:44,721 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 05:04:44,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:04:44,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:04:44,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:04:44,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:04:44,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:04:44,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:04:44,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:04:44,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:04:44,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:04:44,725 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:04:44,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:04:44,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:04:44,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:04:44,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:04:44,726 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_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676276db79a43f24ac4768848febffe3dd303b6e2c16071dede4e51ae957576d [2021-10-29 05:04:45,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:04:45,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:04:45,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:04:45,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:04:45,049 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:04:45,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-10-29 05:04:45,122 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/data/4fb1944b5/bec4bf177ac140e4bf17168ce4b53cee/FLAGd76f4a181 [2021-10-29 05:04:45,686 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:04:45,687 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-10-29 05:04:45,727 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/data/4fb1944b5/bec4bf177ac140e4bf17168ce4b53cee/FLAGd76f4a181 [2021-10-29 05:04:46,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/data/4fb1944b5/bec4bf177ac140e4bf17168ce4b53cee [2021-10-29 05:04:46,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:04:46,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:04:46,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:04:46,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:04:46,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:04:46,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3c2b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46, skipping insertion in model container [2021-10-29 05:04:46,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:04:46,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:04:46,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:04:46,288 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:04:46,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:04:46,332 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:04:46,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46 WrapperNode [2021-10-29 05:04:46,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:04:46,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:04:46,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:04:46,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:04:46,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:04:46,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:04:46,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:04:46,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:04:46,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:04:46,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:04:46,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:04:46,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:04:46,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (1/1) ... [2021-10-29 05:04:46,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:04:46,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:04:46,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:04:46,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:04:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:04:46,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:04:48,075 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:04:48,076 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-29 05:04:48,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:48 BoogieIcfgContainer [2021-10-29 05:04:48,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:04:48,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:04:48,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:04:48,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:04:48,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:04:46" (1/3) ... [2021-10-29 05:04:48,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e78c1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:04:48, skipping insertion in model container [2021-10-29 05:04:48,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:04:46" (2/3) ... [2021-10-29 05:04:48,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e78c1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:04:48, skipping insertion in model container [2021-10-29 05:04:48,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:48" (3/3) ... [2021-10-29 05:04:48,092 INFO L111 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig2.c [2021-10-29 05:04:48,098 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:04:48,098 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-29 05:04:48,171 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:04:48,182 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 [2021-10-29 05:04:48,182 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-29 05:04:48,201 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) [2021-10-29 05:04:48,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 05:04:48,207 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:48,208 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 05:04:48,208 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)] === [2021-10-29 05:04:48,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2021-10-29 05:04:48,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:48,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77110194] [2021-10-29 05:04:48,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:48,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:48,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:48,395 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:48,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77110194] [2021-10-29 05:04:48,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77110194] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:48,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:48,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:04:48,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973885322] [2021-10-29 05:04:48,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:04:48,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:48,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:04:48,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:04:48,426 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) [2021-10-29 05:04:48,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:48,492 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2021-10-29 05:04:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:04:48,494 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 [2021-10-29 05:04:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:48,505 INFO L225 Difference]: With dead ends: 18 [2021-10-29 05:04:48,505 INFO L226 Difference]: Without dead ends: 15 [2021-10-29 05:04:48,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:04:48,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-29 05:04:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-29 05:04:48,543 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) [2021-10-29 05:04:48,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-29 05:04:48,547 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 3 [2021-10-29 05:04:48,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:48,548 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-29 05:04:48,549 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) [2021-10-29 05:04:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-29 05:04:48,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 05:04:48,550 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:48,550 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 05:04:48,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:04:48,554 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)] === [2021-10-29 05:04:48,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:48,559 INFO L85 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2021-10-29 05:04:48,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:48,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072492349] [2021-10-29 05:04:48,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:48,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:48,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:48,597 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:48,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072492349] [2021-10-29 05:04:48,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072492349] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:48,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:48,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:04:48,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927837992] [2021-10-29 05:04:48,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:04:48,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:48,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:04:48,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:04:48,603 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) [2021-10-29 05:04:48,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:48,646 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-10-29 05:04:48,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:04:48,648 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 [2021-10-29 05:04:48,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:48,652 INFO L225 Difference]: With dead ends: 25 [2021-10-29 05:04:48,653 INFO L226 Difference]: Without dead ends: 23 [2021-10-29 05:04:48,655 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:04:48,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-29 05:04:48,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2021-10-29 05:04:48,663 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) [2021-10-29 05:04:48,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-29 05:04:48,666 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 4 [2021-10-29 05:04:48,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:48,667 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-29 05:04:48,667 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) [2021-10-29 05:04:48,667 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-29 05:04:48,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:04:48,670 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:48,670 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:04:48,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:04:48,673 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)] === [2021-10-29 05:04:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:48,685 INFO L85 PathProgramCache]: Analyzing trace with hash 935027559, now seen corresponding path program 1 times [2021-10-29 05:04:48,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:48,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796864570] [2021-10-29 05:04:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:48,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:48,922 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:48,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796864570] [2021-10-29 05:04:48,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796864570] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:48,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:48,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:04:48,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844842252] [2021-10-29 05:04:48,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:04:48,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:48,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:04:48,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:04:48,937 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) [2021-10-29 05:04:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:48,965 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-10-29 05:04:48,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:04:48,966 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 [2021-10-29 05:04:48,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:48,968 INFO L225 Difference]: With dead ends: 22 [2021-10-29 05:04:48,969 INFO L226 Difference]: Without dead ends: 21 [2021-10-29 05:04:48,970 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:04:48,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-29 05:04:48,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-29 05:04:48,975 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) [2021-10-29 05:04:48,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-10-29 05:04:48,977 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 6 [2021-10-29 05:04:48,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:48,977 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-10-29 05:04:48,977 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) [2021-10-29 05:04:48,978 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-10-29 05:04:48,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:04:48,978 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:48,978 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:48,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:04:48,979 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)] === [2021-10-29 05:04:48,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:48,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1078916483, now seen corresponding path program 1 times [2021-10-29 05:04:48,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:48,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850711488] [2021-10-29 05:04:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:48,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:49,108 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:49,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850711488] [2021-10-29 05:04:49,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850711488] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:49,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:49,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:04:49,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169764522] [2021-10-29 05:04:49,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:04:49,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:49,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:04:49,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:04:49,115 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) [2021-10-29 05:04:49,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:49,150 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-10-29 05:04:49,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:04:49,151 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 [2021-10-29 05:04:49,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:49,152 INFO L225 Difference]: With dead ends: 20 [2021-10-29 05:04:49,152 INFO L226 Difference]: Without dead ends: 19 [2021-10-29 05:04:49,153 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:04:49,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-29 05:04:49,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-29 05:04:49,158 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) [2021-10-29 05:04:49,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-10-29 05:04:49,160 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 7 [2021-10-29 05:04:49,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:49,160 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-29 05:04:49,160 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) [2021-10-29 05:04:49,161 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-10-29 05:04:49,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:04:49,164 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:49,164 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:49,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 05:04:49,165 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)] === [2021-10-29 05:04:49,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:49,167 INFO L85 PathProgramCache]: Analyzing trace with hash -620780291, now seen corresponding path program 1 times [2021-10-29 05:04:49,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:49,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633383010] [2021-10-29 05:04:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:49,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:49,272 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:49,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633383010] [2021-10-29 05:04:49,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633383010] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:49,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:49,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:04:49,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542871832] [2021-10-29 05:04:49,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:04:49,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:49,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:04:49,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:04:49,275 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) [2021-10-29 05:04:49,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:49,306 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2021-10-29 05:04:49,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:04:49,306 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 [2021-10-29 05:04:49,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:49,308 INFO L225 Difference]: With dead ends: 27 [2021-10-29 05:04:49,309 INFO L226 Difference]: Without dead ends: 26 [2021-10-29 05:04:49,309 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:04:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-29 05:04:49,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 16. [2021-10-29 05:04:49,315 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) [2021-10-29 05:04:49,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-29 05:04:49,317 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 8 [2021-10-29 05:04:49,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:49,318 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-29 05:04:49,318 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) [2021-10-29 05:04:49,318 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-10-29 05:04:49,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:04:49,319 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:49,319 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:49,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 05:04:49,320 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)] === [2021-10-29 05:04:49,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:49,322 INFO L85 PathProgramCache]: Analyzing trace with hash -620774109, now seen corresponding path program 1 times [2021-10-29 05:04:49,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:49,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285666125] [2021-10-29 05:04:49,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:49,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:49,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:49,505 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:49,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285666125] [2021-10-29 05:04:49,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285666125] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:49,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:49,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:04:49,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849963424] [2021-10-29 05:04:49,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:04:49,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:49,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:04:49,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:04:49,515 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) [2021-10-29 05:04:49,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:49,551 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-10-29 05:04:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:04:49,553 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 [2021-10-29 05:04:49,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:49,555 INFO L225 Difference]: With dead ends: 22 [2021-10-29 05:04:49,555 INFO L226 Difference]: Without dead ends: 21 [2021-10-29 05:04:49,555 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:04:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-29 05:04:49,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2021-10-29 05:04:49,561 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) [2021-10-29 05:04:49,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-29 05:04:49,564 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2021-10-29 05:04:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:49,564 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-29 05:04:49,564 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) [2021-10-29 05:04:49,565 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-29 05:04:49,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:04:49,566 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:49,566 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:49,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 05:04:49,567 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)] === [2021-10-29 05:04:49,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:49,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1751613633, now seen corresponding path program 1 times [2021-10-29 05:04:49,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:49,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542417205] [2021-10-29 05:04:49,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:49,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:49,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:49,636 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:04:49,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542417205] [2021-10-29 05:04:49,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542417205] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 05:04:49,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905329478] [2021-10-29 05:04:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:49,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:04:49,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:04:49,641 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:04:49,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:04:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:49,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:04:49,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:49,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:49,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:49,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905329478] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-29 05:04:49,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:04:49,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2, 2] total 6 [2021-10-29 05:04:49,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798111469] [2021-10-29 05:04:49,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:04:49,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:04:49,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:04:49,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:04:49,987 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) [2021-10-29 05:04:50,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:50,033 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-10-29 05:04:50,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:04:50,034 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 [2021-10-29 05:04:50,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:50,037 INFO L225 Difference]: With dead ends: 25 [2021-10-29 05:04:50,037 INFO L226 Difference]: Without dead ends: 18 [2021-10-29 05:04:50,038 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:04:50,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-29 05:04:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-29 05:04:50,044 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) [2021-10-29 05:04:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-10-29 05:04:50,045 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2021-10-29 05:04:50,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:50,045 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-10-29 05:04:50,046 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) [2021-10-29 05:04:50,046 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-29 05:04:50,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:04:50,047 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:50,047 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:50,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:50,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:04:50,260 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)] === [2021-10-29 05:04:50,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:50,261 INFO L85 PathProgramCache]: Analyzing trace with hash 430602687, now seen corresponding path program 1 times [2021-10-29 05:04:50,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:04:50,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875169643] [2021-10-29 05:04:50,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:50,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:04:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:04:50,372 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:04:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:04:50,492 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:04:50,492 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:04:50,493 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:04:50,495 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:04:50,496 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:04:50,496 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:04:50,497 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:04:50,497 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:04:50,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 05:04:50,502 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:50,506 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:04:50,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:04:50 BoogieIcfgContainer [2021-10-29 05:04:50,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:04:50,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:04:50,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:04:50,531 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:04:50,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:04:48" (3/4) ... [2021-10-29 05:04:50,536 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:04:50,585 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:04:50,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:04:50,587 INFO L168 Benchmark]: Toolchain (without parser) took 4544.99 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 93.6 MB in the beginning and 74.5 MB in the end (delta: 19.1 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:50,587 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 123.7 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:04:50,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.03 ms. Allocated memory is still 123.7 MB. Free memory was 93.4 MB in the beginning and 97.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:50,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.97 ms. Allocated memory is still 123.7 MB. Free memory was 97.7 MB in the beginning and 95.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:50,589 INFO L168 Benchmark]: Boogie Preprocessor took 60.23 ms. Allocated memory is still 123.7 MB. Free memory was 95.7 MB in the beginning and 94.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:04:50,590 INFO L168 Benchmark]: RCFGBuilder took 1644.07 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 94.6 MB in the beginning and 105.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:50,590 INFO L168 Benchmark]: TraceAbstraction took 2449.73 ms. Allocated memory is still 155.2 MB. Free memory was 105.0 MB in the beginning and 76.6 MB in the end (delta: 28.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:50,590 INFO L168 Benchmark]: Witness Printer took 54.39 ms. Allocated memory is still 155.2 MB. Free memory was 76.6 MB in the beginning and 74.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:50,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 123.7 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.03 ms. Allocated memory is still 123.7 MB. Free memory was 93.4 MB in the beginning and 97.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.97 ms. Allocated memory is still 123.7 MB. Free memory was 97.7 MB in the beginning and 95.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.23 ms. Allocated memory is still 123.7 MB. Free memory was 95.7 MB in the beginning and 94.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1644.07 ms. Allocated memory was 123.7 MB in the beginning and 155.2 MB in the end (delta: 31.5 MB). Free memory was 94.6 MB in the beginning and 105.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2449.73 ms. Allocated memory is still 155.2 MB. Free memory was 105.0 MB in the beginning and 76.6 MB in the end (delta: 28.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * Witness Printer took 54.39 ms. Allocated memory is still 155.2 MB. Free memory was 76.6 MB in the beginning and 74.5 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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: 2.3s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 76 SDslu, 28 SDs, 0 SdLazy, 113 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s 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! [2021-10-29 05:04:50,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f95925a7-9277-4f0c-9027-d9932673e851/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...