./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-lit/gj2007.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh --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 e210f4af0021f1e0c887bbfa24b18aad98424108efaad4cfc57802fd9fd5ce53 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:31:46,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:31:46,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:31:46,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:31:46,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:31:46,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:31:46,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:31:46,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:31:46,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:31:46,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:31:46,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:31:46,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:31:46,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:31:46,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:31:46,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:31:46,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:31:46,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:31:46,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:31:46,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:31:46,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:31:46,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:31:46,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:31:46,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:31:46,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:31:46,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:31:46,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:31:46,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:31:46,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:31:46,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:31:46,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:31:46,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:31:46,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:31:46,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:31:46,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:31:46,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:31:46,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:31:46,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:31:46,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:31:46,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:31:46,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:31:46,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:31:46,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 08:31:46,733 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:31:46,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:31:46,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:31:46,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:31:46,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:31:46,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:31:46,735 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:31:46,735 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:31:46,735 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:31:46,735 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:31:46,735 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:31:46,735 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:31:46,736 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:31:46,736 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:31:46,736 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:31:46,736 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:31:46,736 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:31:46,737 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:31:46,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:31:46,737 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:31:46,738 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:31:46,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:31:46,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:31:46,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:31:46,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:31:46,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:31:46,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:31:46,739 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 08:31:46,739 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:31:46,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:31:46,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:31:46,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:31:46,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:31:46,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:31:46,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:31:46,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:31:46,740 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:31:46,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:31:46,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:31:46,741 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:31:46,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:31:46,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:31:46,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:31:46,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e210f4af0021f1e0c887bbfa24b18aad98424108efaad4cfc57802fd9fd5ce53 [2022-12-14 08:31:46,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:31:46,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:31:46,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:31:46,946 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:31:46,947 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:31:46,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loop-lit/gj2007.i [2022-12-14 08:31:49,530 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:31:49,675 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:31:49,676 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/sv-benchmarks/c/loop-lit/gj2007.i [2022-12-14 08:31:49,679 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/data/d4ae009cd/0c2382d5b76f4260b77de1742ee58a03/FLAG8db66ad34 [2022-12-14 08:31:50,108 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/data/d4ae009cd/0c2382d5b76f4260b77de1742ee58a03 [2022-12-14 08:31:50,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:31:50,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:31:50,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:31:50,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:31:50,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:31:50,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3b5b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50, skipping insertion in model container [2022-12-14 08:31:50,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:31:50,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:31:50,247 WARN L237 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_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2022-12-14 08:31:50,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:31:50,262 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:31:50,272 WARN L237 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_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2022-12-14 08:31:50,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:31:50,284 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:31:50,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50 WrapperNode [2022-12-14 08:31:50,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:31:50,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:31:50,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:31:50,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:31:50,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,307 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-12-14 08:31:50,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:31:50,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:31:50,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:31:50,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:31:50,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,320 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:31:50,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:31:50,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:31:50,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:31:50,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (1/1) ... [2022-12-14 08:31:50,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:31:50,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:50,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:31:50,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:31:50,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:31:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:31:50,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:31:50,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:31:50,441 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:31:50,443 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:31:50,533 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:31:50,557 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:31:50,557 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:31:50,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:31:50 BoogieIcfgContainer [2022-12-14 08:31:50,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:31:50,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:31:50,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:31:50,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:31:50,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:31:50" (1/3) ... [2022-12-14 08:31:50,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb328dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:31:50, skipping insertion in model container [2022-12-14 08:31:50,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:50" (2/3) ... [2022-12-14 08:31:50,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb328dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:31:50, skipping insertion in model container [2022-12-14 08:31:50,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:31:50" (3/3) ... [2022-12-14 08:31:50,567 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007.i [2022-12-14 08:31:50,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:31:50,582 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 08:31:50,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:31:50,627 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a7f5109, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:31:50,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 08:31:50,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 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) [2022-12-14 08:31:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:31:50,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:50,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:31:50,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:50,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:50,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2394492, now seen corresponding path program 1 times [2022-12-14 08:31:50,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:50,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418061036] [2022-12-14 08:31:50,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:50,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:31:50,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:50,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418061036] [2022-12-14 08:31:50,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418061036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:50,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:31:50,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:31:50,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302699231] [2022-12-14 08:31:50,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:50,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:31:50,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:50,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:31:50,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:31:50,830 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:50,878 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-12-14 08:31:50,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:31:50,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 08:31:50,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:50,888 INFO L225 Difference]: With dead ends: 35 [2022-12-14 08:31:50,888 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 08:31:50,890 INFO L412 NwaCegarLoop]: 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 [2022-12-14 08:31:50,893 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:50,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:31:50,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 08:31:50,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 08:31:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-12-14 08:31:50,936 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 4 [2022-12-14 08:31:50,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:50,936 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-12-14 08:31:50,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:50,936 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-12-14 08:31:50,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:31:50,937 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:50,937 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 08:31:50,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:31:50,938 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:50,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:50,938 INFO L85 PathProgramCache]: Analyzing trace with hash -720356169, now seen corresponding path program 1 times [2022-12-14 08:31:50,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:50,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666882798] [2022-12-14 08:31:50,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:50,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:31:50,998 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:50,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666882798] [2022-12-14 08:31:50,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666882798] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:50,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836646131] [2022-12-14 08:31:50,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:50,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:50,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:51,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:51,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:31:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:51,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:31:51,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 08:31:51,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:31:51,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836646131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:51,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:31:51,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-12-14 08:31:51,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215440928] [2022-12-14 08:31:51,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:51,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:31:51,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:51,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:31:51,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:51,058 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:51,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:51,080 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-12-14 08:31:51,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:31:51,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 08:31:51,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:51,081 INFO L225 Difference]: With dead ends: 34 [2022-12-14 08:31:51,081 INFO L226 Difference]: Without dead ends: 20 [2022-12-14 08:31:51,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:51,082 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:51,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:31:51,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-14 08:31:51,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-12-14 08:31:51,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:51,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-12-14 08:31:51,085 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 8 [2022-12-14 08:31:51,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:51,086 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-12-14 08:31:51,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:51,086 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-12-14 08:31:51,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:31:51,086 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:51,086 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-12-14 08:31:51,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:31:51,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:51,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:51,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:51,288 INFO L85 PathProgramCache]: Analyzing trace with hash -720356361, now seen corresponding path program 1 times [2022-12-14 08:31:51,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:51,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620585385] [2022-12-14 08:31:51,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:51,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:31:51,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:51,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620585385] [2022-12-14 08:31:51,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620585385] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:51,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135335496] [2022-12-14 08:31:51,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:51,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:51,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:51,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:51,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:31:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:51,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:31:51,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:31:51,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:31:51,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135335496] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:51,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:31:51,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-12-14 08:31:51,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147337168] [2022-12-14 08:31:51,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:51,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:31:51,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:51,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:31:51,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:51,409 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:51,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:51,429 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-12-14 08:31:51,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:31:51,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 08:31:51,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:51,430 INFO L225 Difference]: With dead ends: 20 [2022-12-14 08:31:51,430 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 08:31:51,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:51,432 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:51,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:31:51,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 08:31:51,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 08:31:51,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-12-14 08:31:51,436 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 8 [2022-12-14 08:31:51,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:51,437 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-12-14 08:31:51,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:51,437 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-12-14 08:31:51,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 08:31:51,437 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:51,437 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:31:51,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:31:51,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:51,640 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:51,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:51,642 INFO L85 PathProgramCache]: Analyzing trace with hash -856204705, now seen corresponding path program 1 times [2022-12-14 08:31:51,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:51,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39120231] [2022-12-14 08:31:51,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:51,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:31:51,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:51,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39120231] [2022-12-14 08:31:51,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39120231] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:51,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554052749] [2022-12-14 08:31:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:51,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:51,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:51,712 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:51,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:31:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:51,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:31:51,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:31:51,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:31:51,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554052749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:51,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:31:51,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-12-14 08:31:51,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470733801] [2022-12-14 08:31:51,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:51,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:31:51,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:51,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:31:51,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:51,754 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:51,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:51,767 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-12-14 08:31:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:31:51,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 08:31:51,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:51,768 INFO L225 Difference]: With dead ends: 19 [2022-12-14 08:31:51,768 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 08:31:51,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:51,769 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:51,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:31:51,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 08:31:51,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-14 08:31:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:51,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-14 08:31:51,772 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2022-12-14 08:31:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:51,773 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-14 08:31:51,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-14 08:31:51,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:31:51,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:51,773 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:31:51,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:31:51,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:51,976 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:51,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:51,977 INFO L85 PathProgramCache]: Analyzing trace with hash -772542023, now seen corresponding path program 1 times [2022-12-14 08:31:51,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:51,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629609637] [2022-12-14 08:31:51,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:51,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:52,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:31:52,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:52,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629609637] [2022-12-14 08:31:52,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629609637] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:52,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901437008] [2022-12-14 08:31:52,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:52,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:52,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:52,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:52,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:31:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:52,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:31:52,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:52,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 08:31:52,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:31:52,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901437008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:52,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:31:52,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2022-12-14 08:31:52,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672350227] [2022-12-14 08:31:52,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:52,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:31:52,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:52,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:31:52,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:52,092 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:52,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:52,099 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-12-14 08:31:52,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:31:52,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 08:31:52,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:52,100 INFO L225 Difference]: With dead ends: 15 [2022-12-14 08:31:52,100 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 08:31:52,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:52,101 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:52,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:31:52,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 08:31:52,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 08:31:52,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:52,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 08:31:52,104 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2022-12-14 08:31:52,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:52,105 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 08:31:52,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:52,105 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 08:31:52,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:31:52,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:52,105 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:31:52,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:31:52,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:52,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:52,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:52,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1821001121, now seen corresponding path program 1 times [2022-12-14 08:31:52,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:52,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192450898] [2022-12-14 08:31:52,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:52,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:31:52,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:52,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192450898] [2022-12-14 08:31:52,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192450898] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:52,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34909694] [2022-12-14 08:31:52,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:52,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:52,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:52,382 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:52,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:31:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:52,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:31:52,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 08:31:52,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:31:52,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34909694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:31:52,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:31:52,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2022-12-14 08:31:52,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772292644] [2022-12-14 08:31:52,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:31:52,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:31:52,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:52,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:31:52,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:52,420 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-12-14 08:31:52,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:52,427 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-12-14 08:31:52,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:31:52,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 [2022-12-14 08:31:52,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:52,427 INFO L225 Difference]: With dead ends: 19 [2022-12-14 08:31:52,428 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 08:31:52,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:31:52,428 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:52,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:31:52,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 08:31:52,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 08:31:52,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:31:52,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-12-14 08:31:52,430 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2022-12-14 08:31:52,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:52,431 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-12-14 08:31:52,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-12-14 08:31:52,431 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-12-14 08:31:52,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:31:52,431 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:52,431 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 08:31:52,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 08:31:52,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 08:31:52,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:52,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:52,635 INFO L85 PathProgramCache]: Analyzing trace with hash -123894130, now seen corresponding path program 1 times [2022-12-14 08:31:52,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:52,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746864362] [2022-12-14 08:31:52,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:52,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 08:31:52,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:52,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746864362] [2022-12-14 08:31:52,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746864362] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:52,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184296937] [2022-12-14 08:31:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:52,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:52,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:52,713 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:52,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 08:31:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:52,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:31:52,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 08:31:52,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:31:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 08:31:52,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184296937] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:31:52,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [465093882] [2022-12-14 08:31:52,784 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:31:52,784 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:31:52,786 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:31:52,790 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:31:52,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:31:52,997 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:31:53,169 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '556#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:31:53,169 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:31:53,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:31:53,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 08:31:53,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128918116] [2022-12-14 08:31:53,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:31:53,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 08:31:53,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:53,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 08:31:53,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-12-14 08:31:53,171 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-12-14 08:31:53,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:53,202 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-12-14 08:31:53,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:31:53,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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 17 [2022-12-14 08:31:53,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:53,203 INFO L225 Difference]: With dead ends: 41 [2022-12-14 08:31:53,203 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 08:31:53,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-12-14 08:31:53,204 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:53,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 21 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:31:53,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 08:31:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-14 08:31:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 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) [2022-12-14 08:31:53,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-12-14 08:31:53,207 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 17 [2022-12-14 08:31:53,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:53,207 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-12-14 08:31:53,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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) [2022-12-14 08:31:53,207 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-12-14 08:31:53,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 08:31:53,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:53,208 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1] [2022-12-14 08:31:53,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 08:31:53,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:53,409 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:53,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash -417454851, now seen corresponding path program 2 times [2022-12-14 08:31:53,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:53,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436564466] [2022-12-14 08:31:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:53,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:53,461 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 08:31:53,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:53,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436564466] [2022-12-14 08:31:53,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436564466] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:53,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75279882] [2022-12-14 08:31:53,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:31:53,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:53,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:53,463 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:53,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 08:31:53,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 08:31:53,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:31:53,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:31:53,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 08:31:53,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:31:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-14 08:31:53,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75279882] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:31:53,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1026122435] [2022-12-14 08:31:53,568 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:31:53,568 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:31:53,568 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:31:53,569 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:31:53,569 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:31:53,738 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:31:53,900 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '820#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:31:53,900 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:31:53,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:31:53,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2022-12-14 08:31:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840226868] [2022-12-14 08:31:53,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:31:53,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:31:53,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:53,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:31:53,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-14 08:31:53,902 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-14 08:31:53,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:53,918 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2022-12-14 08:31:53,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:31:53,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 29 [2022-12-14 08:31:53,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:53,919 INFO L225 Difference]: With dead ends: 49 [2022-12-14 08:31:53,919 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 08:31:53,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-14 08:31:53,920 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:53,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:31:53,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 08:31:53,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-12-14 08:31:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 47 states have internal predecessors, (49), 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) [2022-12-14 08:31:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2022-12-14 08:31:53,925 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 29 [2022-12-14 08:31:53,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:53,925 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2022-12-14 08:31:53,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-12-14 08:31:53,926 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2022-12-14 08:31:53,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 08:31:53,926 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:53,927 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1] [2022-12-14 08:31:53,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 08:31:54,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:54,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:54,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash 2065377156, now seen corresponding path program 3 times [2022-12-14 08:31:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:54,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752539856] [2022-12-14 08:31:54,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:54,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-14 08:31:54,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:54,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752539856] [2022-12-14 08:31:54,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752539856] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:54,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623940713] [2022-12-14 08:31:54,318 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 08:31:54,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:54,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:54,319 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:54,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 08:31:54,352 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 08:31:54,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:31:54,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 08:31:54,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:54,380 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-14 08:31:54,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:31:54,431 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-14 08:31:54,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623940713] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:31:54,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1269093821] [2022-12-14 08:31:54,433 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:31:54,433 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:31:54,433 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:31:54,433 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:31:54,434 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:31:54,545 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:31:54,715 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1230#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:31:54,715 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:31:54,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:31:54,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-14 08:31:54,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022289272] [2022-12-14 08:31:54,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:31:54,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 08:31:54,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:54,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 08:31:54,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2022-12-14 08:31:54,717 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 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) [2022-12-14 08:31:54,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:54,766 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2022-12-14 08:31:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 08:31:54,766 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 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 47 [2022-12-14 08:31:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:54,767 INFO L225 Difference]: With dead ends: 101 [2022-12-14 08:31:54,767 INFO L226 Difference]: Without dead ends: 72 [2022-12-14 08:31:54,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2022-12-14 08:31:54,769 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:54,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:31:54,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-12-14 08:31:54,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-12-14 08:31:54,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.028169014084507) internal successors, (73), 71 states have internal predecessors, (73), 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) [2022-12-14 08:31:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2022-12-14 08:31:54,773 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 47 [2022-12-14 08:31:54,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:54,773 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2022-12-14 08:31:54,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 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) [2022-12-14 08:31:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2022-12-14 08:31:54,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 08:31:54,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:54,774 INFO L195 NwaCegarLoop]: trace histogram [15, 10, 10, 10, 5, 5, 5, 5, 4, 1, 1] [2022-12-14 08:31:54,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 08:31:54,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:54,975 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:54,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:54,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1583103330, now seen corresponding path program 4 times [2022-12-14 08:31:54,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:54,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5009540] [2022-12-14 08:31:54,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:54,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:55,113 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 88 proven. 200 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-14 08:31:55,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:55,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5009540] [2022-12-14 08:31:55,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5009540] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:55,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197676723] [2022-12-14 08:31:55,114 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 08:31:55,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:55,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:55,114 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:55,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 08:31:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:55,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 08:31:55,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 88 proven. 200 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-14 08:31:55,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:31:55,357 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 88 proven. 200 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-14 08:31:55,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197676723] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:31:55,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1857138208] [2022-12-14 08:31:55,359 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:31:55,359 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:31:55,359 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:31:55,359 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:31:55,360 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:31:55,482 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:31:55,637 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1888#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:31:55,637 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:31:55,637 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:31:55,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-12-14 08:31:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074052264] [2022-12-14 08:31:55,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:31:55,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 08:31:55,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 08:31:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2022-12-14 08:31:55,640 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 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) [2022-12-14 08:31:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:55,727 INFO L93 Difference]: Finished difference Result 149 states and 162 transitions. [2022-12-14 08:31:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 08:31:55,728 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 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 71 [2022-12-14 08:31:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:55,729 INFO L225 Difference]: With dead ends: 149 [2022-12-14 08:31:55,729 INFO L226 Difference]: Without dead ends: 120 [2022-12-14 08:31:55,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2022-12-14 08:31:55,731 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:55,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:31:55,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-12-14 08:31:55,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-12-14 08:31:55,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.0168067226890756) internal successors, (121), 119 states have internal predecessors, (121), 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) [2022-12-14 08:31:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 121 transitions. [2022-12-14 08:31:55,737 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 121 transitions. Word has length 71 [2022-12-14 08:31:55,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:55,737 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 121 transitions. [2022-12-14 08:31:55,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.92) internal successors, (98), 24 states have internal predecessors, (98), 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) [2022-12-14 08:31:55,737 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 121 transitions. [2022-12-14 08:31:55,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-14 08:31:55,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:55,738 INFO L195 NwaCegarLoop]: trace histogram [27, 22, 22, 22, 5, 5, 5, 5, 4, 1, 1] [2022-12-14 08:31:55,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 08:31:55,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 08:31:55,940 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1191688990, now seen corresponding path program 5 times [2022-12-14 08:31:55,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:55,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677205539] [2022-12-14 08:31:55,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:55,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 184 proven. 968 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-14 08:31:56,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:56,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677205539] [2022-12-14 08:31:56,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677205539] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:56,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693189940] [2022-12-14 08:31:56,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:31:56,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:56,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:56,409 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:56,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 08:31:56,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-14 08:31:56,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:31:56,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 08:31:56,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:56,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2022-12-14 08:31:56,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:31:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1204 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2022-12-14 08:31:56,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693189940] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:31:56,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1933733930] [2022-12-14 08:31:56,766 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:31:56,766 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:31:56,766 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:31:56,767 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:31:56,767 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:31:56,852 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:31:57,054 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2964#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:31:57,054 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:31:57,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:31:57,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 5, 5] total 34 [2022-12-14 08:31:57,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394879830] [2022-12-14 08:31:57,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:31:57,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-14 08:31:57,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:57,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-14 08:31:57,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=1258, Unknown=0, NotChecked=0, Total=1640 [2022-12-14 08:31:57,056 INFO L87 Difference]: Start difference. First operand 120 states and 121 transitions. Second operand has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 34 states have internal predecessors, (166), 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) [2022-12-14 08:31:57,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:57,381 INFO L93 Difference]: Finished difference Result 191 states and 199 transitions. [2022-12-14 08:31:57,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-14 08:31:57,381 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 34 states have internal predecessors, (166), 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 119 [2022-12-14 08:31:57,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:57,383 INFO L225 Difference]: With dead ends: 191 [2022-12-14 08:31:57,383 INFO L226 Difference]: Without dead ends: 162 [2022-12-14 08:31:57,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1187, Invalid=2845, Unknown=0, NotChecked=0, Total=4032 [2022-12-14 08:31:57,386 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:57,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 48 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:31:57,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-12-14 08:31:57,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 160. [2022-12-14 08:31:57,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.0125786163522013) internal successors, (161), 159 states have internal predecessors, (161), 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) [2022-12-14 08:31:57,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 161 transitions. [2022-12-14 08:31:57,393 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 161 transitions. Word has length 119 [2022-12-14 08:31:57,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:57,393 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 161 transitions. [2022-12-14 08:31:57,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 34 states have internal predecessors, (166), 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) [2022-12-14 08:31:57,393 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 161 transitions. [2022-12-14 08:31:57,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-14 08:31:57,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:57,395 INFO L195 NwaCegarLoop]: trace histogram [34, 23, 23, 23, 11, 11, 11, 11, 10, 1, 1] [2022-12-14 08:31:57,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 08:31:57,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:57,597 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:57,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:57,598 INFO L85 PathProgramCache]: Analyzing trace with hash 35232337, now seen corresponding path program 6 times [2022-12-14 08:31:57,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:57,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815682707] [2022-12-14 08:31:57,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:57,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:31:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 480 proven. 1058 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-12-14 08:31:58,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:31:58,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815682707] [2022-12-14 08:31:58,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815682707] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:31:58,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874655835] [2022-12-14 08:31:58,032 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 08:31:58,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:31:58,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:31:58,033 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:31:58,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 08:31:58,081 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 08:31:58,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:31:58,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 08:31:58,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:31:58,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 480 proven. 1058 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-12-14 08:31:58,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:31:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1848 backedges. 480 proven. 1058 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-12-14 08:31:58,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874655835] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:31:58,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [163184663] [2022-12-14 08:31:58,678 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:31:58,678 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:31:58,679 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:31:58,679 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:31:58,679 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:31:58,757 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:31:58,986 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4438#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:31:58,986 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:31:58,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:31:58,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 50 [2022-12-14 08:31:58,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823908458] [2022-12-14 08:31:58,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:31:58,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-12-14 08:31:58,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:31:58,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-12-14 08:31:58,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1293, Invalid=1899, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 08:31:58,988 INFO L87 Difference]: Start difference. First operand 160 states and 161 transitions. Second operand has 51 states, 51 states have (on average 3.9607843137254903) internal successors, (202), 50 states have internal predecessors, (202), 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) [2022-12-14 08:31:59,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:31:59,165 INFO L93 Difference]: Finished difference Result 325 states and 351 transitions. [2022-12-14 08:31:59,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-14 08:31:59,165 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.9607843137254903) internal successors, (202), 50 states have internal predecessors, (202), 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 159 [2022-12-14 08:31:59,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:31:59,166 INFO L225 Difference]: With dead ends: 325 [2022-12-14 08:31:59,166 INFO L226 Difference]: Without dead ends: 260 [2022-12-14 08:31:59,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1293, Invalid=1899, Unknown=0, NotChecked=0, Total=3192 [2022-12-14 08:31:59,167 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:31:59,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 21 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:31:59,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-12-14 08:31:59,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2022-12-14 08:31:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.0077220077220077) internal successors, (261), 259 states have internal predecessors, (261), 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) [2022-12-14 08:31:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 261 transitions. [2022-12-14 08:31:59,175 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 261 transitions. Word has length 159 [2022-12-14 08:31:59,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:31:59,175 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 261 transitions. [2022-12-14 08:31:59,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.9607843137254903) internal successors, (202), 50 states have internal predecessors, (202), 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) [2022-12-14 08:31:59,175 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 261 transitions. [2022-12-14 08:31:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-12-14 08:31:59,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:31:59,177 INFO L195 NwaCegarLoop]: trace histogram [59, 48, 48, 48, 11, 11, 11, 11, 10, 1, 1] [2022-12-14 08:31:59,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-12-14 08:31:59,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 08:31:59,379 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:31:59,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:31:59,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2135316910, now seen corresponding path program 7 times [2022-12-14 08:31:59,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:31:59,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958692403] [2022-12-14 08:31:59,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:31:59,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:31:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:32:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5898 backedges. 980 proven. 4608 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-12-14 08:32:00,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:32:00,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958692403] [2022-12-14 08:32:00,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958692403] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:32:00,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251138585] [2022-12-14 08:32:00,699 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 08:32:00,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:00,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:32:00,701 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:32:00,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 08:32:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:32:00,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-14 08:32:00,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:32:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5898 backedges. 980 proven. 4608 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-12-14 08:32:00,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:32:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5898 backedges. 980 proven. 4608 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-12-14 08:32:01,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251138585] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:32:01,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [283833718] [2022-12-14 08:32:01,793 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:32:01,793 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:32:01,793 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:32:01,793 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:32:01,793 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:32:01,870 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:32:02,132 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6758#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:32:02,132 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:32:02,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:32:02,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 52 [2022-12-14 08:32:02,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893349724] [2022-12-14 08:32:02,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:32:02,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-14 08:32:02,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:32:02,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-14 08:32:02,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1396, Invalid=2026, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 08:32:02,135 INFO L87 Difference]: Start difference. First operand 260 states and 261 transitions. Second operand has 53 states, 53 states have (on average 4.018867924528302) internal successors, (213), 52 states have internal predecessors, (213), 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) [2022-12-14 08:32:02,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:32:02,290 INFO L93 Difference]: Finished difference Result 333 states and 336 transitions. [2022-12-14 08:32:02,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-14 08:32:02,291 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 4.018867924528302) internal successors, (213), 52 states have internal predecessors, (213), 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 259 [2022-12-14 08:32:02,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:32:02,292 INFO L225 Difference]: With dead ends: 333 [2022-12-14 08:32:02,292 INFO L226 Difference]: Without dead ends: 268 [2022-12-14 08:32:02,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 720 SyntacticMatches, 48 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1677 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1396, Invalid=2026, Unknown=0, NotChecked=0, Total=3422 [2022-12-14 08:32:02,293 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:32:02,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:32:02,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-12-14 08:32:02,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2022-12-14 08:32:02,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 267 states have (on average 1.0074906367041199) internal successors, (269), 267 states have internal predecessors, (269), 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) [2022-12-14 08:32:02,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 269 transitions. [2022-12-14 08:32:02,305 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 269 transitions. Word has length 259 [2022-12-14 08:32:02,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:32:02,305 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 269 transitions. [2022-12-14 08:32:02,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 4.018867924528302) internal successors, (213), 52 states have internal predecessors, (213), 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) [2022-12-14 08:32:02,306 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 269 transitions. [2022-12-14 08:32:02,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-12-14 08:32:02,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:32:02,310 INFO L195 NwaCegarLoop]: trace histogram [61, 50, 50, 50, 11, 11, 11, 11, 10, 1, 1] [2022-12-14 08:32:02,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 08:32:02,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:02,511 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:32:02,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:32:02,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2027606520, now seen corresponding path program 8 times [2022-12-14 08:32:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:32:02,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662893486] [2022-12-14 08:32:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:32:02,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:32:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:32:02,771 INFO L134 CoverageAnalysis]: Checked inductivity of 6330 backedges. 0 proven. 1330 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:02,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:32:02,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662893486] [2022-12-14 08:32:02,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662893486] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:32:02,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933614715] [2022-12-14 08:32:02,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:32:02,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:02,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:32:02,773 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:32:02,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 08:32:02,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-12-14 08:32:02,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:32:02,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 08:32:02,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:32:03,036 INFO L134 CoverageAnalysis]: Checked inductivity of 6330 backedges. 0 proven. 1330 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:03,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:32:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6330 backedges. 0 proven. 1330 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:03,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933614715] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:32:03,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1276731780] [2022-12-14 08:32:03,363 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:32:03,363 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:32:03,363 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:32:03,363 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:32:03,364 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:32:03,451 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:32:03,614 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9117#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:32:03,614 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:32:03,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:32:03,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-12-14 08:32:03,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382423817] [2022-12-14 08:32:03,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:32:03,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-14 08:32:03,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:32:03,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-14 08:32:03,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=577, Unknown=0, NotChecked=0, Total=870 [2022-12-14 08:32:03,617 INFO L87 Difference]: Start difference. First operand 268 states and 269 transitions. Second operand has 24 states, 23 states have (on average 6.086956521739131) internal successors, (140), 23 states have internal predecessors, (140), 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) [2022-12-14 08:32:03,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:32:03,658 INFO L93 Difference]: Finished difference Result 341 states and 353 transitions. [2022-12-14 08:32:03,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 08:32:03,659 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.086956521739131) internal successors, (140), 23 states have internal predecessors, (140), 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 267 [2022-12-14 08:32:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:32:03,660 INFO L225 Difference]: With dead ends: 341 [2022-12-14 08:32:03,660 INFO L226 Difference]: Without dead ends: 340 [2022-12-14 08:32:03,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 782 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=577, Unknown=0, NotChecked=0, Total=870 [2022-12-14 08:32:03,661 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:32:03,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:32:03,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-12-14 08:32:03,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2022-12-14 08:32:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 339 states have (on average 1.0058997050147493) internal successors, (341), 339 states have internal predecessors, (341), 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) [2022-12-14 08:32:03,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 341 transitions. [2022-12-14 08:32:03,670 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 341 transitions. Word has length 267 [2022-12-14 08:32:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:32:03,671 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 341 transitions. [2022-12-14 08:32:03,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.086956521739131) internal successors, (140), 23 states have internal predecessors, (140), 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) [2022-12-14 08:32:03,671 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 341 transitions. [2022-12-14 08:32:03,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-12-14 08:32:03,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:32:03,674 INFO L195 NwaCegarLoop]: trace histogram [73, 50, 50, 50, 23, 23, 23, 23, 22, 1, 1] [2022-12-14 08:32:03,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-14 08:32:03,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:03,876 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:32:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:32:03,878 INFO L85 PathProgramCache]: Analyzing trace with hash -535403884, now seen corresponding path program 9 times [2022-12-14 08:32:03,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:32:03,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634783426] [2022-12-14 08:32:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:32:03,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:32:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:32:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 8718 backedges. 0 proven. 3718 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:04,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:32:04,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634783426] [2022-12-14 08:32:04,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634783426] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:32:04,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098187783] [2022-12-14 08:32:04,409 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 08:32:04,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:04,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:32:04,410 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:32:04,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 08:32:04,497 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 08:32:04,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:32:04,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 08:32:04,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:32:04,753 INFO L134 CoverageAnalysis]: Checked inductivity of 8718 backedges. 0 proven. 3718 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:04,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:32:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 8718 backedges. 0 proven. 3718 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:05,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098187783] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:32:05,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [375518220] [2022-12-14 08:32:05,430 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:32:05,430 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:32:05,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:32:05,430 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:32:05,430 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:32:05,509 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:32:05,694 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12026#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:32:05,694 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:32:05,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:32:05,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-12-14 08:32:05,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758847872] [2022-12-14 08:32:05,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:32:05,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-12-14 08:32:05,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:32:05,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-12-14 08:32:05,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1145, Invalid=1717, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 08:32:05,696 INFO L87 Difference]: Start difference. First operand 340 states and 341 transitions. Second operand has 48 states, 47 states have (on average 6.042553191489362) internal successors, (284), 47 states have internal predecessors, (284), 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) [2022-12-14 08:32:05,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:32:05,782 INFO L93 Difference]: Finished difference Result 485 states and 509 transitions. [2022-12-14 08:32:05,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 08:32:05,783 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.042553191489362) internal successors, (284), 47 states have internal predecessors, (284), 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 339 [2022-12-14 08:32:05,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:32:05,784 INFO L225 Difference]: With dead ends: 485 [2022-12-14 08:32:05,784 INFO L226 Difference]: Without dead ends: 484 [2022-12-14 08:32:05,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1038 GetRequests, 986 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1145, Invalid=1717, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 08:32:05,785 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:32:05,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 192 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:32:05,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-12-14 08:32:05,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2022-12-14 08:32:05,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.0041407867494825) internal successors, (485), 483 states have internal predecessors, (485), 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) [2022-12-14 08:32:05,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 485 transitions. [2022-12-14 08:32:05,794 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 485 transitions. Word has length 339 [2022-12-14 08:32:05,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:32:05,794 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 485 transitions. [2022-12-14 08:32:05,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.042553191489362) internal successors, (284), 47 states have internal predecessors, (284), 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) [2022-12-14 08:32:05,794 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 485 transitions. [2022-12-14 08:32:05,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2022-12-14 08:32:05,796 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:32:05,796 INFO L195 NwaCegarLoop]: trace histogram [97, 50, 50, 50, 47, 47, 47, 47, 46, 1, 1] [2022-12-14 08:32:05,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-14 08:32:05,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 08:32:05,998 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:32:05,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:32:05,999 INFO L85 PathProgramCache]: Analyzing trace with hash -906244148, now seen corresponding path program 10 times [2022-12-14 08:32:05,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:32:05,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567632344] [2022-12-14 08:32:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:32:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:32:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:32:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 16086 backedges. 0 proven. 11086 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:07,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:32:07,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567632344] [2022-12-14 08:32:07,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567632344] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:32:07,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26851300] [2022-12-14 08:32:07,472 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-14 08:32:07,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:07,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:32:07,473 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:32:07,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-14 08:32:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:32:07,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-14 08:32:07,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:32:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 16086 backedges. 0 proven. 11086 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:07,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:32:09,703 INFO L134 CoverageAnalysis]: Checked inductivity of 16086 backedges. 0 proven. 11086 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:09,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26851300] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:32:09,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1446080285] [2022-12-14 08:32:09,704 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 08:32:09,704 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:32:09,705 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:32:09,705 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:32:09,705 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:32:09,778 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:32:10,026 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16183#(and (<= 51 |ULTIMATE.start_main_~x~0#1|) (< 2147483646 |ULTIMATE.start_main_~y~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 101) (= |#NULL.base| 0))' at error location [2022-12-14 08:32:10,026 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 08:32:10,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:32:10,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2022-12-14 08:32:10,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929350287] [2022-12-14 08:32:10,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 08:32:10,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-12-14 08:32:10,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:32:10,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-12-14 08:32:10,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4577, Invalid=5725, Unknown=0, NotChecked=0, Total=10302 [2022-12-14 08:32:10,030 INFO L87 Difference]: Start difference. First operand 484 states and 485 transitions. Second operand has 96 states, 95 states have (on average 6.021052631578947) internal successors, (572), 95 states have internal predecessors, (572), 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) [2022-12-14 08:32:10,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:32:10,336 INFO L93 Difference]: Finished difference Result 773 states and 821 transitions. [2022-12-14 08:32:10,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-12-14 08:32:10,336 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.021052631578947) internal successors, (572), 95 states have internal predecessors, (572), 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 483 [2022-12-14 08:32:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:32:10,338 INFO L225 Difference]: With dead ends: 773 [2022-12-14 08:32:10,338 INFO L226 Difference]: Without dead ends: 772 [2022-12-14 08:32:10,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1494 GetRequests, 1394 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=4577, Invalid=5725, Unknown=0, NotChecked=0, Total=10302 [2022-12-14 08:32:10,340 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:32:10,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 384 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:32:10,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2022-12-14 08:32:10,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 772. [2022-12-14 08:32:10,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 771 states have (on average 1.0025940337224384) internal successors, (773), 771 states have internal predecessors, (773), 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) [2022-12-14 08:32:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 773 transitions. [2022-12-14 08:32:10,353 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 773 transitions. Word has length 483 [2022-12-14 08:32:10,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:32:10,353 INFO L495 AbstractCegarLoop]: Abstraction has 772 states and 773 transitions. [2022-12-14 08:32:10,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.021052631578947) internal successors, (572), 95 states have internal predecessors, (572), 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) [2022-12-14 08:32:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 773 transitions. [2022-12-14 08:32:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2022-12-14 08:32:10,358 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:32:10,358 INFO L195 NwaCegarLoop]: trace histogram [145, 95, 95, 95, 95, 94, 50, 50, 50, 1, 1] [2022-12-14 08:32:10,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-14 08:32:10,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 08:32:10,559 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 08:32:10,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:32:10,561 INFO L85 PathProgramCache]: Analyzing trace with hash -7349700, now seen corresponding path program 11 times [2022-12-14 08:32:10,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:32:10,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64745500] [2022-12-14 08:32:10,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:32:10,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:32:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:32:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 41190 backedges. 0 proven. 36190 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-12-14 08:32:16,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:32:16,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64745500] [2022-12-14 08:32:16,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64745500] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:32:16,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530427647] [2022-12-14 08:32:16,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:32:16,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:16,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:32:16,984 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:32:16,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-14 08:32:17,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 62 check-sat command(s) [2022-12-14 08:32:17,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:32:17,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-14 08:32:17,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:32:19,177 INFO L134 CoverageAnalysis]: Checked inductivity of 41190 backedges. 26026 proven. 0 refuted. 0 times theorem prover too weak. 15164 trivial. 0 not checked. [2022-12-14 08:32:19,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:32:19,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530427647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:32:19,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:32:19,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [95] total 148 [2022-12-14 08:32:19,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679729697] [2022-12-14 08:32:19,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:32:19,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-14 08:32:19,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:32:19,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-14 08:32:19,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6033, Invalid=15723, Unknown=0, NotChecked=0, Total=21756 [2022-12-14 08:32:19,182 INFO L87 Difference]: Start difference. First operand 772 states and 773 transitions. Second operand has 53 states, 53 states have (on average 5.943396226415095) internal successors, (315), 53 states have internal predecessors, (315), 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) [2022-12-14 08:32:19,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:32:19,526 INFO L93 Difference]: Finished difference Result 772 states and 773 transitions. [2022-12-14 08:32:19,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-14 08:32:19,527 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 5.943396226415095) internal successors, (315), 53 states have internal predecessors, (315), 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 771 [2022-12-14 08:32:19,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:32:19,528 INFO L225 Difference]: With dead ends: 772 [2022-12-14 08:32:19,528 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 08:32:19,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 865 GetRequests, 719 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4794 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=6033, Invalid=15723, Unknown=0, NotChecked=0, Total=21756 [2022-12-14 08:32:19,531 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:32:19,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 547 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 08:32:19,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 08:32:19,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 08:32:19,532 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) [2022-12-14 08:32:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 08:32:19,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 771 [2022-12-14 08:32:19,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:32:19,532 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 08:32:19,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.943396226415095) internal successors, (315), 53 states have internal predecessors, (315), 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) [2022-12-14 08:32:19,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 08:32:19,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 08:32:19,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 08:32:19,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 08:32:19,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 08:32:19,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 08:32:19,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 08:32:19,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 08:32:19,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-14 08:32:19,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:32:19,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 08:32:20,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 08:32:20,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 08:32:20,810 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-12-14 08:32:20,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 08:32:20,810 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-12-14 08:32:20,810 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-12-14 08:32:20,810 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-12-14 08:32:20,810 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 08:32:20,810 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 08:32:20,811 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-12-14 08:32:20,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-12-14 08:32:20,811 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-12-14 08:32:20,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-12-14 08:32:20,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-12-14 08:32:20,811 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 33) no Hoare annotation was computed. [2022-12-14 08:32:20,811 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 27 34) the Hoare annotation is: (let ((.cse1 (<= |ULTIMATE.start_main_~y~0#1| 50)) (.cse0 (<= 50 |ULTIMATE.start_main_~y~0#1|))) (or (and (<= |ULTIMATE.start_main_~y~0#1| 65) (<= 65 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 59) .cse0 (<= 59 |ULTIMATE.start_main_~x~0#1|)) (and (<= 80 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 80) .cse0) (and (<= 90 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 90)) (and (<= 60 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 60) .cse0) (and (<= 83 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 83) .cse0) (and (<= 94 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 94) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 53) .cse0 (<= 53 |ULTIMATE.start_main_~x~0#1|)) (and (<= 72 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 72)) (and (<= 95 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 95) .cse0) (and (<= 78 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 78) .cse0) (and (<= 64 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 64) .cse0) (and (<= 98 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483602) .cse0) (and (= |ULTIMATE.start_main_~x~0#1| 0) .cse1 .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 79) .cse0 (<= 79 |ULTIMATE.start_main_~x~0#1|)) (and (<= 100 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483604) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 76) (<= 76 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 97 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483601) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 96) (<= 96 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 73) .cse0 (<= 73 |ULTIMATE.start_main_~x~0#1|)) (and (<= 70 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 70) .cse0) (and (<= 91 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 91) .cse0) (and (<= 63 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 63) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 75) (<= 75 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 86) (<= 86 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 87 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 87) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 56) (<= 56 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 88) (<= 88 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 55) (<= 55 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse0) (and (<= 82 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 82) .cse0) (and (<= 62 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 62)) (and (<= |ULTIMATE.start_main_~y~0#1| 89) (<= 89 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 58) (<= 58 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 93 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 93) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 66) (<= 66 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 77) .cse0 (<= 77 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~y~0#1| 84) (<= 84 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 61 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 61) .cse0) (and (<= 99 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483603) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 74) (<= 74 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 85) (<= 85 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 71) (<= 71 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 52) (<= 52 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 51 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 51)) (and (<= 69 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 69) .cse0) (and (<= 92 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 92) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 81) (<= 81 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 54 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 54)) (and (<= 57 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 57) .cse0) (and (<= 67 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 67) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 68) (<= 68 |ULTIMATE.start_main_~x~0#1|) .cse0))) [2022-12-14 08:32:20,814 INFO L445 BasicCegarLoop]: Path program histogram: [11, 1, 1, 1, 1, 1, 1] [2022-12-14 08:32:20,815 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:32:20,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:32:20 BoogieIcfgContainer [2022-12-14 08:32:20,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:32:20,829 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:32:20,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:32:20,829 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:32:20,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:31:50" (3/4) ... [2022-12-14 08:32:20,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 08:32:20,838 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-14 08:32:20,838 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 08:32:20,838 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 08:32:20,838 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 08:32:20,857 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:32:20,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:32:20,858 INFO L158 Benchmark]: Toolchain (without parser) took 30745.91ms. Allocated memory was 130.0MB in the beginning and 474.0MB in the end (delta: 343.9MB). Free memory was 96.6MB in the beginning and 354.7MB in the end (delta: -258.1MB). Peak memory consumption was 86.3MB. Max. memory is 16.1GB. [2022-12-14 08:32:20,858 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 102.0MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:32:20,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.62ms. Allocated memory is still 130.0MB. Free memory was 96.2MB in the beginning and 86.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 08:32:20,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.85ms. Allocated memory is still 130.0MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:32:20,859 INFO L158 Benchmark]: Boogie Preprocessor took 14.88ms. Allocated memory is still 130.0MB. Free memory was 85.0MB in the beginning and 83.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:32:20,859 INFO L158 Benchmark]: RCFGBuilder took 236.65ms. Allocated memory is still 130.0MB. Free memory was 83.7MB in the beginning and 73.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 08:32:20,860 INFO L158 Benchmark]: TraceAbstraction took 30267.09ms. Allocated memory was 130.0MB in the beginning and 474.0MB in the end (delta: 343.9MB). Free memory was 72.4MB in the beginning and 357.9MB in the end (delta: -285.5MB). Peak memory consumption was 262.4MB. Max. memory is 16.1GB. [2022-12-14 08:32:20,860 INFO L158 Benchmark]: Witness Printer took 28.27ms. Allocated memory is still 474.0MB. Free memory was 356.8MB in the beginning and 354.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:32:20,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 102.0MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.62ms. Allocated memory is still 130.0MB. Free memory was 96.2MB in the beginning and 86.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.85ms. Allocated memory is still 130.0MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.88ms. Allocated memory is still 130.0MB. Free memory was 85.0MB in the beginning and 83.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 236.65ms. Allocated memory is still 130.0MB. Free memory was 83.7MB in the beginning and 73.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 30267.09ms. Allocated memory was 130.0MB in the beginning and 474.0MB in the end (delta: 343.9MB). Free memory was 72.4MB in the beginning and 357.9MB in the end (delta: -285.5MB). Peak memory consumption was 262.4MB. Max. memory is 16.1GB. * Witness Printer took 28.27ms. Allocated memory is still 474.0MB. Free memory was 356.8MB in the beginning and 354.7MB in the end (delta: 2.1MB). 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: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: 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, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 30.2s, OverallIterations: 17, TraceHistogramMax: 145, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 1447 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1231 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2309 IncrementalHoareTripleChecker+Invalid, 2333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 216 mSDtfsCounter, 2309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6498 GetRequests, 5867 SyntacticMatches, 48 SemanticMatches, 583 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9612 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=772occurred in iteration=16, InterpolantAutomatonStates: 425, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 102 NumberOfFragments, 521 HoareAnnotationTreeSize, 1 FomulaSimplifications, 605 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 1 FomulaSimplificationsInter, 637 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 5218 NumberOfCodeBlocks, 4766 NumberOfCodeBlocksAsserted, 114 NumberOfCheckSat, 6965 ConstructedInterpolants, 0 QuantifiedInterpolants, 18692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3763 ConjunctsInSsa, 252 ConjunctsInUnsatCore, 43 InterpolantComputations, 7 PerfectInterpolantSequences, 100429/204214 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 6 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((y <= 65 && 65 <= x) && 50 <= y) || ((y <= 59 && 50 <= y) && 59 <= x)) || ((80 <= x && y <= 80) && 50 <= y)) || ((90 <= x && 50 <= y) && y <= 90)) || ((60 <= x && y <= 60) && 50 <= y)) || ((83 <= x && y <= 83) && 50 <= y)) || ((94 <= x && y <= 94) && 50 <= y)) || ((y <= 53 && 50 <= y) && 53 <= x)) || ((72 <= x && 50 <= y) && y <= 72)) || ((95 <= x && y <= 95) && 50 <= y)) || ((78 <= x && y <= 78) && 50 <= y)) || ((64 <= x && y <= 64) && 50 <= y)) || ((98 <= x && y < 2147483602) && 50 <= y)) || ((x == 0 && y <= 50) && 50 <= y)) || ((y <= 79 && 50 <= y) && 79 <= x)) || ((100 <= x && y < 2147483604) && 50 <= y)) || ((y <= 76 && 76 <= x) && 50 <= y)) || ((97 <= x && y < 2147483601) && 50 <= y)) || ((y <= 96 && 96 <= x) && 50 <= y)) || ((y <= 73 && 50 <= y) && 73 <= x)) || ((70 <= x && y <= 70) && 50 <= y)) || ((91 <= x && y <= 91) && 50 <= y)) || ((63 <= x && y <= 63) && 50 <= y)) || ((y <= 75 && 75 <= x) && 50 <= y)) || ((y <= 86 && 86 <= x) && 50 <= y)) || ((87 <= x && y <= 87) && 50 <= y)) || ((y <= 56 && 56 <= x) && 50 <= y)) || ((y <= 88 && 88 <= x) && 50 <= y)) || ((y <= 55 && 55 <= x) && 50 <= y)) || ((1 <= x && y <= 50) && 50 <= y)) || ((82 <= x && y <= 82) && 50 <= y)) || ((62 <= x && 50 <= y) && y <= 62)) || ((y <= 89 && 89 <= x) && 50 <= y)) || ((y <= 58 && 58 <= x) && 50 <= y)) || ((93 <= x && y <= 93) && 50 <= y)) || ((y <= 66 && 66 <= x) && 50 <= y)) || ((y <= 77 && 50 <= y) && 77 <= x)) || ((y <= 84 && 84 <= x) && 50 <= y)) || ((61 <= x && y <= 61) && 50 <= y)) || ((99 <= x && y < 2147483603) && 50 <= y)) || ((y <= 74 && 74 <= x) && 50 <= y)) || ((y <= 85 && 85 <= x) && 50 <= y)) || ((y <= 71 && 71 <= x) && 50 <= y)) || ((y <= 52 && 52 <= x) && 50 <= y)) || ((51 <= x && 50 <= y) && y <= 51)) || ((69 <= x && y <= 69) && 50 <= y)) || ((92 <= x && y <= 92) && 50 <= y)) || ((y <= 81 && 81 <= x) && 50 <= y)) || ((54 <= x && 50 <= y) && y <= 54)) || ((57 <= x && y <= 57) && 50 <= y)) || ((67 <= x && y <= 67) && 50 <= y)) || ((y <= 68 && 68 <= x) && 50 <= y) RESULT: Ultimate proved your program to be correct! [2022-12-14 08:32:20,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da1bb9ce-10ec-43c5-8c7e-85bbf3859306/bin/utaipan-gh47qXpMRh/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