./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:39:41,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:39:41,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:39:41,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:39:41,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:39:41,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:39:41,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:39:41,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:39:41,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:39:41,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:39:41,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:39:41,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:39:41,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:39:41,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:39:41,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:39:41,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:39:41,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:39:41,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:39:41,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:39:41,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:39:41,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:39:41,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:39:41,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:39:41,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:39:41,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:39:41,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:39:41,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:39:41,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:39:41,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:39:41,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:39:41,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:39:41,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:39:41,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:39:41,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:39:41,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:39:41,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:39:41,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:39:41,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:39:41,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:39:41,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:39:41,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:39:41,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-23 03:39:41,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:39:41,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:39:41,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:39:41,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:39:41,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:39:41,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:39:41,720 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:39:41,720 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:39:41,720 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:39:41,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:39:41,722 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:39:41,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:39:41,722 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:39:41,723 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:39:41,723 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:39:41,723 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:39:41,723 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:39:41,724 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:39:41,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:39:41,725 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:39:41,725 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:39:41,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:39:41,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:39:41,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:39:41,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:39:41,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:39:41,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:39:41,728 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 03:39:41,728 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:39:41,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:39:41,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:39:41,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:39:41,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:39:41,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:39:41,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:39:41,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:39:41,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:39:41,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:39:41,731 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:39:41,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:39:41,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:39:41,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:39:41,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:39:41,732 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_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 [2021-11-23 03:39:42,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:39:42,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:39:42,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:39:42,103 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:39:42,104 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:39:42,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-11-23 03:39:42,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/data/f33753c8a/dc6ec3bf110246bba51d34d0515615dc/FLAGf38dc8eb4 [2021-11-23 03:39:42,674 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:39:42,674 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-11-23 03:39:42,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/data/f33753c8a/dc6ec3bf110246bba51d34d0515615dc/FLAGf38dc8eb4 [2021-11-23 03:39:43,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/data/f33753c8a/dc6ec3bf110246bba51d34d0515615dc [2021-11-23 03:39:43,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:39:43,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:39:43,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:39:43,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:39:43,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:39:43,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa83261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43, skipping insertion in model container [2021-11-23 03:39:43,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:39:43,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:39:43,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-11-23 03:39:43,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:39:43,257 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:39:43,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-11-23 03:39:43,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:39:43,294 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:39:43,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43 WrapperNode [2021-11-23 03:39:43,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:39:43,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:39:43,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:39:43,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:39:43,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,335 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2021-11-23 03:39:43,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:39:43,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:39:43,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:39:43,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:39:43,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:39:43,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:39:43,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:39:43,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:39:43,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (1/1) ... [2021-11-23 03:39:43,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:39:43,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:39:43,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:39:43,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:39:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:39:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:39:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:39:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:39:43,533 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:39:43,534 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:39:43,701 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:39:43,731 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:39:43,732 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 03:39:43,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:39:43 BoogieIcfgContainer [2021-11-23 03:39:43,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:39:43,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:39:43,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:39:43,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:39:43,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:39:43" (1/3) ... [2021-11-23 03:39:43,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a70f8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:39:43, skipping insertion in model container [2021-11-23 03:39:43,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:39:43" (2/3) ... [2021-11-23 03:39:43,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a70f8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:39:43, skipping insertion in model container [2021-11-23 03:39:43,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:39:43" (3/3) ... [2021-11-23 03:39:43,744 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2021-11-23 03:39:43,752 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:39:43,752 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-23 03:39:43,792 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:39:43,799 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 [2021-11-23 03:39:43,799 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-23 03:39:43,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 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) [2021-11-23 03:39:43,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 03:39:43,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:43,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 03:39:43,823 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:43,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:43,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2092610, now seen corresponding path program 1 times [2021-11-23 03:39:43,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:43,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092279722] [2021-11-23 03:39:43,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:43,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:44,063 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:44,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092279722] [2021-11-23 03:39:44,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092279722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:44,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:44,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:39:44,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610912899] [2021-11-23 03:39:44,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:44,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:39:44,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:44,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:39:44,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:39:44,141 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:39:44,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:44,210 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-11-23 03:39:44,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:39:44,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-23 03:39:44,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:44,223 INFO L225 Difference]: With dead ends: 19 [2021-11-23 03:39:44,223 INFO L226 Difference]: Without dead ends: 14 [2021-11-23 03:39:44,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:39:44,234 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:44,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:39:44,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-23 03:39:44,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-11-23 03:39:44,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 12 states have internal predecessors, (13), 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) [2021-11-23 03:39:44,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-23 03:39:44,271 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2021-11-23 03:39:44,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:44,271 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-23 03:39:44,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:39:44,272 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-23 03:39:44,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 03:39:44,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:44,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 03:39:44,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:39:44,275 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:44,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:44,279 INFO L85 PathProgramCache]: Analyzing trace with hash 64870960, now seen corresponding path program 1 times [2021-11-23 03:39:44,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:44,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679263267] [2021-11-23 03:39:44,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:44,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:44,344 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:44,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679263267] [2021-11-23 03:39:44,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679263267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:44,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:44,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:39:44,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096203134] [2021-11-23 03:39:44,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:44,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:39:44,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:44,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:39:44,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:39:44,347 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:39:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:44,374 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-11-23 03:39:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:39:44,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-23 03:39:44,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:44,376 INFO L225 Difference]: With dead ends: 13 [2021-11-23 03:39:44,376 INFO L226 Difference]: Without dead ends: 12 [2021-11-23 03:39:44,377 INFO L932 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 [2021-11-23 03:39:44,381 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:44,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:39:44,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-23 03:39:44,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-23 03:39:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-11-23 03:39:44,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-11-23 03:39:44,392 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2021-11-23 03:39:44,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:44,393 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-11-23 03:39:44,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:39:44,395 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-11-23 03:39:44,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 03:39:44,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:44,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 03:39:44,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:39:44,397 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:44,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:44,398 INFO L85 PathProgramCache]: Analyzing trace with hash 2010999812, now seen corresponding path program 1 times [2021-11-23 03:39:44,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:44,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977132853] [2021-11-23 03:39:44,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:44,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:44,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:44,441 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:44,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977132853] [2021-11-23 03:39:44,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977132853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:44,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:44,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:39:44,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782719394] [2021-11-23 03:39:44,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:44,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:39:44,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:44,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:39:44,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:39:44,443 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2021-11-23 03:39:44,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:44,498 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-11-23 03:39:44,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:39:44,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2021-11-23 03:39:44,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:44,499 INFO L225 Difference]: With dead ends: 17 [2021-11-23 03:39:44,499 INFO L226 Difference]: Without dead ends: 16 [2021-11-23 03:39:44,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:39:44,501 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:44,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:39:44,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-23 03:39:44,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2021-11-23 03:39:44,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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) [2021-11-23 03:39:44,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-23 03:39:44,509 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2021-11-23 03:39:44,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:44,509 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-23 03:39:44,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2021-11-23 03:39:44,510 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-23 03:39:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 03:39:44,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:44,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:39:44,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:39:44,511 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:44,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2083515214, now seen corresponding path program 1 times [2021-11-23 03:39:44,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:44,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811377489] [2021-11-23 03:39:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:44,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:44,549 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:44,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811377489] [2021-11-23 03:39:44,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811377489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:44,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:44,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:39:44,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990086986] [2021-11-23 03:39:44,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:44,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:39:44,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:44,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:39:44,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:39:44,552 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-11-23 03:39:44,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:44,571 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-11-23 03:39:44,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:39:44,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2021-11-23 03:39:44,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:44,573 INFO L225 Difference]: With dead ends: 14 [2021-11-23 03:39:44,573 INFO L226 Difference]: Without dead ends: 13 [2021-11-23 03:39:44,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:39:44,575 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:44,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:39:44,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-23 03:39:44,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-23 03:39:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2021-11-23 03:39:44,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-23 03:39:44,580 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-11-23 03:39:44,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:44,581 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-23 03:39:44,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-11-23 03:39:44,581 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-23 03:39:44,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 03:39:44,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:44,582 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:39:44,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:39:44,582 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:44,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:44,583 INFO L85 PathProgramCache]: Analyzing trace with hash -803359244, now seen corresponding path program 1 times [2021-11-23 03:39:44,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:44,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24326747] [2021-11-23 03:39:44,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:44,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:44,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:44,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:44,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24326747] [2021-11-23 03:39:44,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24326747] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:39:44,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720301604] [2021-11-23 03:39:44,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:44,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:39:44,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:39:44,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:39:44,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:39:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:44,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:39:44,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:39:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:44,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:39:44,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:44,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720301604] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:39:44,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1589900983] [2021-11-23 03:39:44,816 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-23 03:39:44,816 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:39:44,821 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:39:44,827 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:39:44,827 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:39:45,311 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:39:45,578 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '221#(and (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (< 2147483645 |ULTIMATE.start_main_~j~0#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:39:45,579 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:39:45,579 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:39:45,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-23 03:39:45,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364459046] [2021-11-23 03:39:45,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:39:45,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:39:45,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:45,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:39:45,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-23 03:39:45,582 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 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) [2021-11-23 03:39:45,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:45,615 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-11-23 03:39:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:39:45,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 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) Word has length 9 [2021-11-23 03:39:45,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:45,618 INFO L225 Difference]: With dead ends: 29 [2021-11-23 03:39:45,618 INFO L226 Difference]: Without dead ends: 28 [2021-11-23 03:39:45,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-23 03:39:45,624 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:45,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 21 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:39:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-23 03:39:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2021-11-23 03:39:45,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 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) [2021-11-23 03:39:45,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-11-23 03:39:45,637 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 9 [2021-11-23 03:39:45,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:45,638 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-11-23 03:39:45,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 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) [2021-11-23 03:39:45,639 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-11-23 03:39:45,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 03:39:45,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:45,639 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-23 03:39:45,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:39:45,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:39:45,854 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:45,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:45,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1065881398, now seen corresponding path program 1 times [2021-11-23 03:39:45,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:45,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076235546] [2021-11-23 03:39:45,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:45,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:45,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:39:45,889 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:45,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076235546] [2021-11-23 03:39:45,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076235546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:39:45,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:39:45,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:39:45,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646732637] [2021-11-23 03:39:45,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:39:45,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:39:45,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:45,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:39:45,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:39:45,892 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-23 03:39:45,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:45,909 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2021-11-23 03:39:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:39:45,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-11-23 03:39:45,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:45,910 INFO L225 Difference]: With dead ends: 26 [2021-11-23 03:39:45,911 INFO L226 Difference]: Without dead ends: 25 [2021-11-23 03:39:45,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:39:45,912 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:45,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:39:45,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-23 03:39:45,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-23 03:39:45,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 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) [2021-11-23 03:39:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-11-23 03:39:45,918 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 11 [2021-11-23 03:39:45,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:45,918 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-11-23 03:39:45,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-23 03:39:45,918 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-11-23 03:39:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:39:45,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:45,920 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1] [2021-11-23 03:39:45,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:39:45,920 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:45,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:45,921 INFO L85 PathProgramCache]: Analyzing trace with hash 291495106, now seen corresponding path program 2 times [2021-11-23 03:39:45,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:45,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946531464] [2021-11-23 03:39:45,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:45,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:46,001 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:46,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946531464] [2021-11-23 03:39:46,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946531464] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:39:46,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167757444] [2021-11-23 03:39:46,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:39:46,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:39:46,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:39:46,012 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:39:46,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:39:46,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-23 03:39:46,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:39:46,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 03:39:46,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:39:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:46,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:39:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:46,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167757444] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:39:46,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1884699668] [2021-11-23 03:39:46,263 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-23 03:39:46,263 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:39:46,264 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:39:46,264 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:39:46,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:39:46,497 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:39:46,774 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '510#(and (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (< 2147483645 |ULTIMATE.start_main_~j~0#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:39:46,775 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:39:46,775 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:39:46,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-11-23 03:39:46,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228943418] [2021-11-23 03:39:46,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:39:46,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:39:46,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:46,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:39:46,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2021-11-23 03:39:46,790 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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) [2021-11-23 03:39:46,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:46,849 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2021-11-23 03:39:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:39:46,849 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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 24 [2021-11-23 03:39:46,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:46,851 INFO L225 Difference]: With dead ends: 56 [2021-11-23 03:39:46,851 INFO L226 Difference]: Without dead ends: 55 [2021-11-23 03:39:46,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2021-11-23 03:39:46,852 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:46,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 35 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:39:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-23 03:39:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-23 03:39:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 54 states have internal predecessors, (55), 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) [2021-11-23 03:39:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-11-23 03:39:46,866 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 24 [2021-11-23 03:39:46,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:46,867 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-11-23 03:39:46,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 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) [2021-11-23 03:39:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-11-23 03:39:46,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 03:39:46,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:46,871 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1] [2021-11-23 03:39:46,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:39:47,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:39:47,087 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:47,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:47,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1862645118, now seen corresponding path program 3 times [2021-11-23 03:39:47,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:47,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913757785] [2021-11-23 03:39:47,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:47,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:47,259 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:47,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913757785] [2021-11-23 03:39:47,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913757785] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:39:47,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526071389] [2021-11-23 03:39:47,260 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 03:39:47,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:39:47,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:39:47,263 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:39:47,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:39:47,323 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 03:39:47,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:39:47,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 03:39:47,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:39:47,456 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:47,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:39:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:47,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526071389] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:39:47,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1907642402] [2021-11-23 03:39:47,739 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-23 03:39:47,739 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:39:47,739 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:39:47,740 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:39:47,740 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:39:47,919 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:39:48,205 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '992#(and (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (< 2147483645 |ULTIMATE.start_main_~j~0#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:39:48,206 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:39:48,206 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:39:48,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-11-23 03:39:48,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610102302] [2021-11-23 03:39:48,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:39:48,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 03:39:48,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 03:39:48,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=632, Unknown=0, NotChecked=0, Total=930 [2021-11-23 03:39:48,209 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 24 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 24 states have internal predecessors, (107), 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) [2021-11-23 03:39:48,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:48,306 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2021-11-23 03:39:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 03:39:48,307 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 24 states have internal predecessors, (107), 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 54 [2021-11-23 03:39:48,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:48,309 INFO L225 Difference]: With dead ends: 116 [2021-11-23 03:39:48,309 INFO L226 Difference]: Without dead ends: 115 [2021-11-23 03:39:48,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=298, Invalid=632, Unknown=0, NotChecked=0, Total=930 [2021-11-23 03:39:48,311 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 44 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:48,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 71 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:39:48,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-23 03:39:48,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-23 03:39:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.0087719298245614) internal successors, (115), 114 states have internal predecessors, (115), 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) [2021-11-23 03:39:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2021-11-23 03:39:48,324 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 54 [2021-11-23 03:39:48,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:48,324 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2021-11-23 03:39:48,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.6521739130434785) internal successors, (107), 24 states have internal predecessors, (107), 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) [2021-11-23 03:39:48,325 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2021-11-23 03:39:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 03:39:48,331 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:48,332 INFO L514 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1] [2021-11-23 03:39:48,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:39:48,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 03:39:48,547 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:48,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:48,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1927842302, now seen corresponding path program 4 times [2021-11-23 03:39:48,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:48,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593288333] [2021-11-23 03:39:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:48,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:49,000 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:49,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593288333] [2021-11-23 03:39:49,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593288333] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:39:49,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427845590] [2021-11-23 03:39:49,000 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 03:39:49,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:39:49,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:39:49,001 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:39:49,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:39:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:49,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 03:39:49,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:39:49,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:49,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:39:50,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:50,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427845590] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:39:50,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1595167593] [2021-11-23 03:39:50,325 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-23 03:39:50,325 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:39:50,325 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:39:50,326 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:39:50,326 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:39:50,477 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:39:50,795 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2002#(and (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (< 2147483645 |ULTIMATE.start_main_~j~0#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:39:50,795 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:39:50,796 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:39:50,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-11-23 03:39:50,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935921112] [2021-11-23 03:39:50,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:39:50,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-23 03:39:50,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:50,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-23 03:39:50,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1150, Invalid=1820, Unknown=0, NotChecked=0, Total=2970 [2021-11-23 03:39:50,801 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand has 48 states, 47 states have (on average 4.829787234042553) internal successors, (227), 48 states have internal predecessors, (227), 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) [2021-11-23 03:39:51,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:51,007 INFO L93 Difference]: Finished difference Result 236 states and 259 transitions. [2021-11-23 03:39:51,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-23 03:39:51,008 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.829787234042553) internal successors, (227), 48 states have internal predecessors, (227), 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 114 [2021-11-23 03:39:51,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:51,011 INFO L225 Difference]: With dead ends: 236 [2021-11-23 03:39:51,011 INFO L226 Difference]: Without dead ends: 235 [2021-11-23 03:39:51,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1150, Invalid=1820, Unknown=0, NotChecked=0, Total=2970 [2021-11-23 03:39:51,014 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 115 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:51,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 143 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:39:51,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-23 03:39:51,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2021-11-23 03:39:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 234 states have (on average 1.0042735042735043) internal successors, (235), 234 states have internal predecessors, (235), 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) [2021-11-23 03:39:51,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 235 transitions. [2021-11-23 03:39:51,033 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 235 transitions. Word has length 114 [2021-11-23 03:39:51,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:51,034 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 235 transitions. [2021-11-23 03:39:51,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.829787234042553) internal successors, (227), 48 states have internal predecessors, (227), 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) [2021-11-23 03:39:51,035 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 235 transitions. [2021-11-23 03:39:51,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-23 03:39:51,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:51,047 INFO L514 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1] [2021-11-23 03:39:51,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:39:51,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:39:51,264 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:51,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:51,264 INFO L85 PathProgramCache]: Analyzing trace with hash 33754370, now seen corresponding path program 5 times [2021-11-23 03:39:51,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:51,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327806669] [2021-11-23 03:39:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:51,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:52,515 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:52,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327806669] [2021-11-23 03:39:52,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327806669] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:39:52,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760396269] [2021-11-23 03:39:52,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:39:52,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:39:52,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:39:52,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:39:52,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:39:52,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2021-11-23 03:39:52,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:39:52,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-23 03:39:52,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:39:53,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:53,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:39:56,157 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:39:56,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760396269] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:39:56,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [810332286] [2021-11-23 03:39:56,160 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-23 03:39:56,160 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:39:56,161 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:39:56,161 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:39:56,161 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:39:56,318 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:39:56,747 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4068#(and (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (< 2147483645 |ULTIMATE.start_main_~j~0#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:39:56,749 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:39:56,749 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:39:56,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-11-23 03:39:56,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288918491] [2021-11-23 03:39:56,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:39:56,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-11-23 03:39:56,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:56,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-11-23 03:39:56,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4582, Invalid=5924, Unknown=0, NotChecked=0, Total=10506 [2021-11-23 03:39:56,759 INFO L87 Difference]: Start difference. First operand 235 states and 235 transitions. Second operand has 96 states, 95 states have (on average 4.91578947368421) internal successors, (467), 96 states have internal predecessors, (467), 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) [2021-11-23 03:39:57,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:57,272 INFO L93 Difference]: Finished difference Result 476 states and 523 transitions. [2021-11-23 03:39:57,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-23 03:39:57,273 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.91578947368421) internal successors, (467), 96 states have internal predecessors, (467), 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 234 [2021-11-23 03:39:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:57,280 INFO L225 Difference]: With dead ends: 476 [2021-11-23 03:39:57,280 INFO L226 Difference]: Without dead ends: 475 [2021-11-23 03:39:57,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 978 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4582, Invalid=5924, Unknown=0, NotChecked=0, Total=10506 [2021-11-23 03:39:57,285 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 188 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:57,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 287 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:39:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2021-11-23 03:39:57,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 475. [2021-11-23 03:39:57,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.0021097046413503) internal successors, (475), 474 states have internal predecessors, (475), 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) [2021-11-23 03:39:57,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 475 transitions. [2021-11-23 03:39:57,330 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 475 transitions. Word has length 234 [2021-11-23 03:39:57,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:57,332 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 475 transitions. [2021-11-23 03:39:57,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.91578947368421) internal successors, (467), 96 states have internal predecessors, (467), 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) [2021-11-23 03:39:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 475 transitions. [2021-11-23 03:39:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-11-23 03:39:57,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:57,353 INFO L514 BasicCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1] [2021-11-23 03:39:57,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:39:57,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 03:39:57,579 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:39:57,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:57,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1625343230, now seen corresponding path program 6 times [2021-11-23 03:39:57,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:57,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913971729] [2021-11-23 03:39:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:57,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:40:01,524 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:01,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913971729] [2021-11-23 03:40:01,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913971729] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:40:01,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73682451] [2021-11-23 03:40:01,525 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 03:40:01,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:40:01,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:40:01,531 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:40:01,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 03:40:01,714 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 03:40:01,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:40:01,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-23 03:40:01,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:40:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:40:02,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:40:12,178 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:40:12,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73682451] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:40:12,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [956998641] [2021-11-23 03:40:12,180 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-23 03:40:12,181 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:40:12,181 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:40:12,181 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:40:12,181 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:40:12,287 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:40:12,822 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8246#(and (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (< 2147483645 |ULTIMATE.start_main_~j~0#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 03:40:12,822 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:40:12,823 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:40:12,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-11-23 03:40:12,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465835966] [2021-11-23 03:40:12,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:40:12,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-11-23 03:40:12,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:12,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-11-23 03:40:12,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18358, Invalid=21044, Unknown=0, NotChecked=0, Total=39402 [2021-11-23 03:40:12,846 INFO L87 Difference]: Start difference. First operand 475 states and 475 transitions. Second operand has 192 states, 191 states have (on average 4.958115183246074) internal successors, (947), 192 states have internal predecessors, (947), 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) [2021-11-23 03:40:14,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:40:14,266 INFO L93 Difference]: Finished difference Result 956 states and 1051 transitions. [2021-11-23 03:40:14,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-11-23 03:40:14,267 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.958115183246074) internal successors, (947), 192 states have internal predecessors, (947), 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 474 [2021-11-23 03:40:14,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:40:14,273 INFO L225 Difference]: With dead ends: 956 [2021-11-23 03:40:14,273 INFO L226 Difference]: Without dead ends: 955 [2021-11-23 03:40:14,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1516 GetRequests, 1319 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1986 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=18358, Invalid=21044, Unknown=0, NotChecked=0, Total=39402 [2021-11-23 03:40:14,283 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 380 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:40:14,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 575 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 03:40:14,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2021-11-23 03:40:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2021-11-23 03:40:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 954 states have (on average 1.00104821802935) internal successors, (955), 954 states have internal predecessors, (955), 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) [2021-11-23 03:40:14,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 955 transitions. [2021-11-23 03:40:14,311 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 955 transitions. Word has length 474 [2021-11-23 03:40:14,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:40:14,312 INFO L470 AbstractCegarLoop]: Abstraction has 955 states and 955 transitions. [2021-11-23 03:40:14,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.958115183246074) internal successors, (947), 192 states have internal predecessors, (947), 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) [2021-11-23 03:40:14,313 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 955 transitions. [2021-11-23 03:40:14,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2021-11-23 03:40:14,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:14,346 INFO L514 BasicCegarLoop]: trace histogram [191, 190, 190, 190, 190, 1, 1, 1] [2021-11-23 03:40:14,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:40:14,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 03:40:14,575 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-23 03:40:14,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:14,575 INFO L85 PathProgramCache]: Analyzing trace with hash 711694082, now seen corresponding path program 7 times [2021-11-23 03:40:14,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:14,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572437858] [2021-11-23 03:40:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:14,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 0 proven. 90155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:40:27,333 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:27,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572437858] [2021-11-23 03:40:27,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572437858] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:40:27,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732933782] [2021-11-23 03:40:27,334 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 03:40:27,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:40:27,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:40:27,347 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:40:27,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 03:40:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:27,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 2121 conjuncts, 202 conjunts are in the unsatisfiable core [2021-11-23 03:40:27,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:40:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 90155 backedges. 70040 proven. 0 refuted. 0 times theorem prover too weak. 20115 trivial. 0 not checked. [2021-11-23 03:40:51,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:40:51,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732933782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:51,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:40:51,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203] imperfect sequences [192] total 394 [2021-11-23 03:40:51,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072837292] [2021-11-23 03:40:51,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:51,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2021-11-23 03:40:51,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:51,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2021-11-23 03:40:51,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28930, Invalid=125912, Unknown=0, NotChecked=0, Total=154842 [2021-11-23 03:40:51,099 INFO L87 Difference]: Start difference. First operand 955 states and 955 transitions. Second operand has 203 states, 203 states have (on average 2.5073891625615765) internal successors, (509), 203 states have internal predecessors, (509), 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) [2021-11-23 03:41:03,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:41:03,702 INFO L93 Difference]: Finished difference Result 955 states and 955 transitions. [2021-11-23 03:41:03,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2021-11-23 03:41:03,711 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 2.5073891625615765) internal successors, (509), 203 states have internal predecessors, (509), 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 954 [2021-11-23 03:41:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:41:03,711 INFO L225 Difference]: With dead ends: 955 [2021-11-23 03:41:03,712 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:41:03,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1245 GetRequests, 753 SyntacticMatches, 0 SemanticMatches, 492 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57891 ImplicationChecksByTransitivity, 42.6s TimeCoverageRelationStatistics Valid=44180, Invalid=199362, Unknown=0, NotChecked=0, Total=243542 [2021-11-23 03:41:03,732 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 200 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 4239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 4240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:41:03,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 1211 Invalid, 4240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4239 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 03:41:03,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:41:03,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:41:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:41:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:41:03,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 954 [2021-11-23 03:41:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:41:03,734 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:41:03,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 2.5073891625615765) internal successors, (509), 203 states have internal predecessors, (509), 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) [2021-11-23 03:41:03,735 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:41:03,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:41:03,738 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-23 03:41:03,739 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-23 03:41:03,739 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-23 03:41:03,739 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-23 03:41:03,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-23 03:41:03,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 03:41:03,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:41:06,470 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-23 03:41:06,470 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:41:06,470 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-23 03:41:06,470 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-11-23 03:41:06,471 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-11-23 03:41:06,472 INFO L854 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)))) (or (and (<= |ULTIMATE.start_main_~j~0#1| 118) .cse0 (<= 59 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 2147483459) (<= 96 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 138) .cse0 (<= 69 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 35 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 70)) (and .cse0 (<= 65 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 130)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 146) (<= 73 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 66 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 132)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 182) (<= 91 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 6)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 8) (<= 4 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 164) (<= 82 |ULTIMATE.start_main_~i~0#1|) .cse0) (and .cse0 (<= 89 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 178)) (and .cse0 (<= 34 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 68)) (and (<= 44 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 88)) (and .cse0 (<= 93 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 186)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 2147483457) (<= 95 |ULTIMATE.start_main_~i~0#1|)) (and (<= 21 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 42)) (and .cse0 (<= 23 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 46)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 2147483465) (<= 99 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 66) (<= 33 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 28 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 56)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 18) (<= 9 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 39 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 78)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 2147483463) (<= 98 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 48 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 96)) (and .cse0 (<= 53 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 106)) (and .cse0 (<= 20 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 40)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 44) (<= 22 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 112) (<= 56 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 45 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 90)) (and (<= 79 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 158)) (and .cse0 (<= 58 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 116)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 64) (<= 32 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 74 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 148)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 62) (<= 31 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 50) (<= 25 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 82) (<= 41 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 57 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 114)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 140) (<= 70 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 54) .cse0 (<= 27 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 43 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 86)) (and .cse0 (<= 63 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 126)) (and .cse0 (<= 13 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 26)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 160) (<= 80 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 49 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 98)) (and .cse0 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 (<= 51 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 102)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 142) (<= 71 |ULTIMATE.start_main_~i~0#1|)) (and (<= 86 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 172)) (and (<= |ULTIMATE.start_main_~j~0#1| 10) .cse0 (<= 5 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 10 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 20)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 32) (<= 16 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 150) (<= 75 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 88 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 176)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 92) (<= 46 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 22) (<= 11 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 170) .cse0 (<= 85 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 154) (<= 77 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 37 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 74)) (and .cse0 (<= 97 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483461)) (and .cse0 (<= 84 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 168)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 48) (<= 24 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 16) (<= 8 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 38) (<= 19 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 100 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483467)) (and .cse0 (<= 61 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 122)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 188) (<= 94 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 30) (<= 15 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 12 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 24)) (and .cse0 (<= 30 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 60)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 108) (<= 54 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 6 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 12)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 136) (<= 68 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 87 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 174)) (and .cse0 (<= 26 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 52)) (and .cse0 (<= 42 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 84)) (and .cse0 (<= 50 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 100)) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2)) (and (<= |ULTIMATE.start_main_~j~0#1| 104) .cse0 (<= 52 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 40 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 80)) (and .cse0 (<= 72 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 144)) (and .cse0 (<= 17 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 34)) (and .cse0 (<= 64 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 128)) (and .cse0 (<= 7 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 14)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 124) (<= 62 |ULTIMATE.start_main_~i~0#1|)) (and (<= 55 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 110)) (and .cse0 (<= 47 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 94)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 4) (<= 2 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 38 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 76)) (and .cse0 (<= 14 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 28)) (and (<= |ULTIMATE.start_main_~j~0#1| 120) .cse0 (<= 60 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 18 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 36)) (and .cse0 (<= 76 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 152)) (and (<= |ULTIMATE.start_main_~j~0#1| 72) .cse0 (<= 36 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 92 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 184)) (and (<= |ULTIMATE.start_main_~j~0#1| 58) .cse0 (<= 29 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 134) (<= 67 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 166) (<= 83 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 162) (<= 81 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 156) (<= 78 |ULTIMATE.start_main_~i~0#1|)) (and (<= 90 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~j~0#1| 180)))) [2021-11-23 03:41:06,472 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-23 03:41:06,472 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-23 03:41:06,473 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 03:41:06,473 INFO L861 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-11-23 03:41:06,473 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-23 03:41:06,473 INFO L858 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-11-23 03:41:06,473 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-11-23 03:41:06,476 INFO L732 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1] [2021-11-23 03:41:06,478 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:41:06,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:41:06 BoogieIcfgContainer [2021-11-23 03:41:06,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:41:06,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:41:06,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:41:06,557 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:41:06,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:39:43" (3/4) ... [2021-11-23 03:41:06,561 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:41:06,569 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 03:41:06,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 03:41:06,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 03:41:06,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:41:06,616 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:41:06,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:41:06,617 INFO L158 Benchmark]: Toolchain (without parser) took 83559.74ms. Allocated memory was 92.3MB in the beginning and 408.9MB in the end (delta: 316.7MB). Free memory was 55.2MB in the beginning and 308.6MB in the end (delta: -253.4MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. [2021-11-23 03:41:06,617 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 79.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:41:06,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.78ms. Allocated memory is still 92.3MB. Free memory was 54.9MB in the beginning and 45.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:41:06,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.42ms. Allocated memory is still 92.3MB. Free memory was 45.3MB in the beginning and 43.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:41:06,619 INFO L158 Benchmark]: Boogie Preprocessor took 36.56ms. Allocated memory is still 92.3MB. Free memory was 43.8MB in the beginning and 42.8MB in the end (delta: 948.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:41:06,619 INFO L158 Benchmark]: RCFGBuilder took 360.99ms. Allocated memory is still 92.3MB. Free memory was 42.8MB in the beginning and 67.6MB in the end (delta: -24.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-11-23 03:41:06,620 INFO L158 Benchmark]: TraceAbstraction took 82819.99ms. Allocated memory was 92.3MB in the beginning and 408.9MB in the end (delta: 316.7MB). Free memory was 67.2MB in the beginning and 311.7MB in the end (delta: -244.5MB). Peak memory consumption was 277.7MB. Max. memory is 16.1GB. [2021-11-23 03:41:06,620 INFO L158 Benchmark]: Witness Printer took 59.40ms. Allocated memory is still 408.9MB. Free memory was 311.7MB in the beginning and 308.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:41:06,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 79.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.78ms. Allocated memory is still 92.3MB. Free memory was 54.9MB in the beginning and 45.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.42ms. Allocated memory is still 92.3MB. Free memory was 45.3MB in the beginning and 43.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.56ms. Allocated memory is still 92.3MB. Free memory was 43.8MB in the beginning and 42.8MB in the end (delta: 948.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.99ms. Allocated memory is still 92.3MB. Free memory was 42.8MB in the beginning and 67.6MB in the end (delta: -24.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 82819.99ms. Allocated memory was 92.3MB in the beginning and 408.9MB in the end (delta: 316.7MB). Free memory was 67.2MB in the beginning and 311.7MB in the end (delta: -244.5MB). Peak memory consumption was 277.7MB. Max. memory is 16.1GB. * Witness Printer took 59.40ms. Allocated memory is still 408.9MB. Free memory was 311.7MB in the beginning and 308.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 82.7s, OverallIterations: 12, TraceHistogramMax: 191, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 15.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 978 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 978 mSDsluCounter, 2385 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2231 mSDsCounter, 216 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5091 IncrementalHoareTripleChecker+Invalid, 5307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 216 mSolverCounterUnsat, 155 mSDtfsCounter, 5091 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4164 GetRequests, 3253 SyntacticMatches, 0 SemanticMatches, 911 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61680 ImplicationChecksByTransitivity, 61.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955occurred in iteration=11, InterpolantAutomatonStates: 600, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 104 NumberOfFragments, 1214 HoareAnnotationTreeSize, 2 FomulaSimplifications, 567 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 2 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 57.0s InterpolantComputationTime, 3759 NumberOfCodeBlocks, 3759 NumberOfCodeBlocksAsserted, 71 NumberOfCheckSat, 4643 ConstructedInterpolants, 0 QuantifiedInterpolants, 12975 SizeOfPredicates, 100 NumberOfNonLiveVariables, 4254 ConjunctsInSsa, 391 ConjunctsInUnsatCore, 25 InterpolantComputations, 6 PerfectInterpolantSequences, 90159/266696 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((j <= 118 && 0 <= j + 2147483648) && 59 <= i) || ((0 <= j + 2147483648 && j <= 2147483459) && 96 <= i)) || ((j <= 138 && 0 <= j + 2147483648) && 69 <= i)) || ((0 <= j + 2147483648 && 35 <= i) && j <= 70)) || ((0 <= j + 2147483648 && 65 <= i) && j <= 130)) || ((0 <= j + 2147483648 && j <= 146) && 73 <= i)) || ((0 <= j + 2147483648 && 66 <= i) && j <= 132)) || ((0 <= j + 2147483648 && j <= 182) && 91 <= i)) || ((0 <= j + 2147483648 && 3 <= i) && j <= 6)) || ((0 <= j + 2147483648 && j <= 8) && 4 <= i)) || ((j <= 164 && 82 <= i) && 0 <= j + 2147483648)) || ((0 <= j + 2147483648 && 89 <= i) && j <= 178)) || ((0 <= j + 2147483648 && 34 <= i) && j <= 68)) || ((44 <= i && 0 <= j + 2147483648) && j <= 88)) || ((0 <= j + 2147483648 && 93 <= i) && j <= 186)) || ((0 <= j + 2147483648 && j <= 2147483457) && 95 <= i)) || ((21 <= i && 0 <= j + 2147483648) && j <= 42)) || ((0 <= j + 2147483648 && 23 <= i) && j <= 46)) || ((0 <= j + 2147483648 && j <= 2147483465) && 99 <= i)) || ((0 <= j + 2147483648 && j <= 66) && 33 <= i)) || ((0 <= j + 2147483648 && 28 <= i) && j <= 56)) || ((0 <= j + 2147483648 && j <= 18) && 9 <= i)) || ((0 <= j + 2147483648 && 39 <= i) && j <= 78)) || ((0 <= j + 2147483648 && j <= 2147483463) && 98 <= i)) || ((0 <= j + 2147483648 && 48 <= i) && j <= 96)) || ((0 <= j + 2147483648 && 53 <= i) && j <= 106)) || ((0 <= j + 2147483648 && 20 <= i) && j <= 40)) || ((0 <= j + 2147483648 && j <= 44) && 22 <= i)) || ((0 <= j + 2147483648 && j <= 112) && 56 <= i)) || ((0 <= j + 2147483648 && 45 <= i) && j <= 90)) || ((79 <= i && 0 <= j + 2147483648) && j <= 158)) || ((0 <= j + 2147483648 && 58 <= i) && j <= 116)) || ((0 <= j + 2147483648 && j <= 64) && 32 <= i)) || ((0 <= j + 2147483648 && 74 <= i) && j <= 148)) || ((0 <= j + 2147483648 && j <= 62) && 31 <= i)) || ((0 <= j + 2147483648 && j <= 50) && 25 <= i)) || ((0 <= j + 2147483648 && j <= 82) && 41 <= i)) || ((0 <= j + 2147483648 && 57 <= i) && j <= 114)) || ((0 <= j + 2147483648 && j <= 140) && 70 <= i)) || ((j <= 54 && 0 <= j + 2147483648) && 27 <= i)) || ((0 <= j + 2147483648 && 43 <= i) && j <= 86)) || ((0 <= j + 2147483648 && 63 <= i) && j <= 126)) || ((0 <= j + 2147483648 && 13 <= i) && j <= 26)) || ((0 <= j + 2147483648 && j <= 160) && 80 <= i)) || ((0 <= j + 2147483648 && 49 <= i) && j <= 98)) || ((0 <= j + 2147483648 && 0 <= i) && j <= 0)) || ((0 <= j + 2147483648 && 51 <= i) && j <= 102)) || ((0 <= j + 2147483648 && j <= 142) && 71 <= i)) || ((86 <= i && 0 <= j + 2147483648) && j <= 172)) || ((j <= 10 && 0 <= j + 2147483648) && 5 <= i)) || ((0 <= j + 2147483648 && 10 <= i) && j <= 20)) || ((0 <= j + 2147483648 && j <= 32) && 16 <= i)) || ((0 <= j + 2147483648 && j <= 150) && 75 <= i)) || ((0 <= j + 2147483648 && 88 <= i) && j <= 176)) || ((0 <= j + 2147483648 && j <= 92) && 46 <= i)) || ((0 <= j + 2147483648 && j <= 22) && 11 <= i)) || ((j <= 170 && 0 <= j + 2147483648) && 85 <= i)) || ((0 <= j + 2147483648 && j <= 154) && 77 <= i)) || ((0 <= j + 2147483648 && 37 <= i) && j <= 74)) || ((0 <= j + 2147483648 && 97 <= i) && j <= 2147483461)) || ((0 <= j + 2147483648 && 84 <= i) && j <= 168)) || ((0 <= j + 2147483648 && j <= 48) && 24 <= i)) || ((0 <= j + 2147483648 && j <= 16) && 8 <= i)) || ((0 <= j + 2147483648 && j <= 38) && 19 <= i)) || ((0 <= j + 2147483648 && 100 <= i) && j <= 2147483467)) || ((0 <= j + 2147483648 && 61 <= i) && j <= 122)) || ((0 <= j + 2147483648 && j <= 188) && 94 <= i)) || ((0 <= j + 2147483648 && j <= 30) && 15 <= i)) || ((0 <= j + 2147483648 && 12 <= i) && j <= 24)) || ((0 <= j + 2147483648 && 30 <= i) && j <= 60)) || ((0 <= j + 2147483648 && j <= 108) && 54 <= i)) || ((0 <= j + 2147483648 && 6 <= i) && j <= 12)) || ((0 <= j + 2147483648 && j <= 136) && 68 <= i)) || ((0 <= j + 2147483648 && 87 <= i) && j <= 174)) || ((0 <= j + 2147483648 && 26 <= i) && j <= 52)) || ((0 <= j + 2147483648 && 42 <= i) && j <= 84)) || ((0 <= j + 2147483648 && 50 <= i) && j <= 100)) || ((0 <= j + 2147483648 && 1 <= i) && j <= 2)) || ((j <= 104 && 0 <= j + 2147483648) && 52 <= i)) || ((0 <= j + 2147483648 && 40 <= i) && j <= 80)) || ((0 <= j + 2147483648 && 72 <= i) && j <= 144)) || ((0 <= j + 2147483648 && 17 <= i) && j <= 34)) || ((0 <= j + 2147483648 && 64 <= i) && j <= 128)) || ((0 <= j + 2147483648 && 7 <= i) && j <= 14)) || ((0 <= j + 2147483648 && j <= 124) && 62 <= i)) || ((55 <= i && 0 <= j + 2147483648) && j <= 110)) || ((0 <= j + 2147483648 && 47 <= i) && j <= 94)) || ((0 <= j + 2147483648 && j <= 4) && 2 <= i)) || ((0 <= j + 2147483648 && 38 <= i) && j <= 76)) || ((0 <= j + 2147483648 && 14 <= i) && j <= 28)) || ((j <= 120 && 0 <= j + 2147483648) && 60 <= i)) || ((0 <= j + 2147483648 && 18 <= i) && j <= 36)) || ((0 <= j + 2147483648 && 76 <= i) && j <= 152)) || ((j <= 72 && 0 <= j + 2147483648) && 36 <= i)) || ((0 <= j + 2147483648 && 92 <= i) && j <= 184)) || ((j <= 58 && 0 <= j + 2147483648) && 29 <= i)) || ((0 <= j + 2147483648 && j <= 134) && 67 <= i)) || ((0 <= j + 2147483648 && j <= 166) && 83 <= i)) || ((0 <= j + 2147483648 && j <= 162) && 81 <= i)) || ((0 <= j + 2147483648 && j <= 156) && 78 <= i)) || ((90 <= i && 0 <= j + 2147483648) && j <= 180) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 03:41:06,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78a13844-b753-479d-b7fd-60bd2e503981/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE