./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2n_update_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba --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 1fd0aba5d9be2820550e57012fb4e12f76fe291bb253443319d08539e5b2ba1a --- 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-b5237d8 [2022-11-22 02:03:27,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:03:27,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:03:27,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:03:27,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:03:27,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:03:27,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:03:27,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:03:27,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:03:27,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:03:27,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:03:27,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:03:27,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:03:27,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:03:27,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:03:27,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:03:27,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:03:27,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:03:27,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:03:27,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:03:27,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:03:27,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:03:27,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:03:27,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:03:27,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:03:27,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:03:27,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:03:27,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:03:27,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:03:27,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:03:27,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:03:27,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:03:27,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:03:27,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:03:27,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:03:27,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:03:27,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:03:27,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:03:27,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:03:27,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:03:27,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:03:27,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:03:27,120 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:03:27,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:03:27,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:03:27,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:03:27,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:03:27,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:03:27,122 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:03:27,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:03:27,123 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:03:27,123 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:03:27,123 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:03:27,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:03:27,124 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:03:27,124 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:03:27,125 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:03:27,125 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:03:27,125 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:03:27,125 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:03:27,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:03:27,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:03:27,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:03:27,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:03:27,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:03:27,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:03:27,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:03:27,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:03:27,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:03:27,128 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:03:27,128 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:03:27,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:03:27,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:03:27,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:03:27,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:03:27,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:03:27,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:03:27,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:03:27,130 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:03:27,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:03:27,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:03:27,131 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:03:27,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:03:27,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:03:27,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:03:27,132 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_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fd0aba5d9be2820550e57012fb4e12f76fe291bb253443319d08539e5b2ba1a [2022-11-22 02:03:27,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:03:27,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:03:27,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:03:27,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:03:27,505 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:03:27,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-simple/sll2n_update_all.i [2022-11-22 02:03:30,533 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:03:30,785 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:03:30,786 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/sv-benchmarks/c/list-simple/sll2n_update_all.i [2022-11-22 02:03:30,797 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/data/c1da84cab/585656b68f7e453a9d711d94b704d06d/FLAG78c89c9ef [2022-11-22 02:03:30,813 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/data/c1da84cab/585656b68f7e453a9d711d94b704d06d [2022-11-22 02:03:30,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:03:30,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:03:30,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:03:30,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:03:30,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:03:30,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:03:30" (1/1) ... [2022-11-22 02:03:30,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6bea34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:30, skipping insertion in model container [2022-11-22 02:03:30,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:03:30" (1/1) ... [2022-11-22 02:03:30,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:03:30,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:03:31,253 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_8ccd660e-b979-401b-bd74-8de06acce24b/sv-benchmarks/c/list-simple/sll2n_update_all.i[24218,24231] [2022-11-22 02:03:31,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:03:31,270 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:03:31,327 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_8ccd660e-b979-401b-bd74-8de06acce24b/sv-benchmarks/c/list-simple/sll2n_update_all.i[24218,24231] [2022-11-22 02:03:31,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:03:31,363 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:03:31,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31 WrapperNode [2022-11-22 02:03:31,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:03:31,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:03:31,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:03:31,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:03:31,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,443 INFO L138 Inliner]: procedures = 126, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2022-11-22 02:03:31,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:03:31,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:03:31,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:03:31,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:03:31,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,483 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:03:31,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:03:31,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:03:31,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:03:31,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (1/1) ... [2022-11-22 02:03:31,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:03:31,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:31,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:03:31,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:03:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:03:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:03:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:03:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:03:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:03:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:03:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:03:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:03:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:03:31,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:03:31,765 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:03:31,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:03:32,093 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:03:32,152 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:03:32,153 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-22 02:03:32,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:32 BoogieIcfgContainer [2022-11-22 02:03:32,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:03:32,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:03:32,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:03:32,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:03:32,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:03:30" (1/3) ... [2022-11-22 02:03:32,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb3ba2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:03:32, skipping insertion in model container [2022-11-22 02:03:32,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:03:31" (2/3) ... [2022-11-22 02:03:32,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb3ba2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:03:32, skipping insertion in model container [2022-11-22 02:03:32,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:32" (3/3) ... [2022-11-22 02:03:32,171 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_update_all.i [2022-11-22 02:03:32,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:03:32,192 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-22 02:03:32,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:03:32,265 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;@491a29d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:03:32,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-22 02:03:32,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.88) internal successors, (47), 39 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:32,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:03:32,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:32,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:03:32,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:32,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:32,290 INFO L85 PathProgramCache]: Analyzing trace with hash 5391530, now seen corresponding path program 1 times [2022-11-22 02:03:32,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:32,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065945106] [2022-11-22 02:03:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:32,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:32,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:32,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065945106] [2022-11-22 02:03:32,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065945106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:32,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:32,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:03:32,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859019989] [2022-11-22 02:03:32,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:32,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:32,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:32,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:32,621 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.88) internal successors, (47), 39 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2022-11-22 02:03:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:32,684 INFO L93 Difference]: Finished difference Result 79 states and 93 transitions. [2022-11-22 02:03:32,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:32,687 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 [2022-11-22 02:03:32,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:32,695 INFO L225 Difference]: With dead ends: 79 [2022-11-22 02:03:32,695 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 02:03:32,698 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 [2022-11-22 02:03:32,701 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:32,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 69 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:03:32,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 02:03:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2022-11-22 02:03:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 36 states have internal predecessors, (41), 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) [2022-11-22 02:03:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-22 02:03:32,735 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 4 [2022-11-22 02:03:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:32,736 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-22 02:03:32,736 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) [2022-11-22 02:03:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-22 02:03:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:03:32,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:32,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:03:32,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:03:32,738 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:32,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:32,739 INFO L85 PathProgramCache]: Analyzing trace with hash 5257468, now seen corresponding path program 1 times [2022-11-22 02:03:32,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:32,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293553462] [2022-11-22 02:03:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:32,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:32,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:32,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:32,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293553462] [2022-11-22 02:03:32,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293553462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:32,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:32,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:03:32,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415089166] [2022-11-22 02:03:32,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:32,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:03:32,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:32,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:03:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:03:32,915 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:32,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:32,969 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2022-11-22 02:03:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:03:32,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 02:03:32,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:32,971 INFO L225 Difference]: With dead ends: 42 [2022-11-22 02:03:32,971 INFO L226 Difference]: Without dead ends: 41 [2022-11-22 02:03:32,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:32,973 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 5 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:33,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 88 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:03:33,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-22 02:03:33,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2022-11-22 02:03:33,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.72) internal successors, (43), 38 states have internal predecessors, (43), 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) [2022-11-22 02:03:33,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-22 02:03:33,006 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 4 [2022-11-22 02:03:33,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:33,006 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-22 02:03:33,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:33,007 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-22 02:03:33,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:03:33,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:33,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:03:33,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:03:33,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:33,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:33,008 INFO L85 PathProgramCache]: Analyzing trace with hash 162981564, now seen corresponding path program 1 times [2022-11-22 02:03:33,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:33,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696771492] [2022-11-22 02:03:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:33,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:33,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696771492] [2022-11-22 02:03:33,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696771492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:33,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:33,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:03:33,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849165079] [2022-11-22 02:03:33,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:33,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:03:33,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:33,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:03:33,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:03:33,129 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:33,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:33,179 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-22 02:03:33,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:03:33,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:03:33,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:33,181 INFO L225 Difference]: With dead ends: 41 [2022-11-22 02:03:33,181 INFO L226 Difference]: Without dead ends: 40 [2022-11-22 02:03:33,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:33,183 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:33,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 89 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:03:33,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-22 02:03:33,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-22 02:03:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 39 states have internal predecessors, (44), 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) [2022-11-22 02:03:33,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2022-11-22 02:03:33,189 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 5 [2022-11-22 02:03:33,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:33,190 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2022-11-22 02:03:33,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:33,190 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2022-11-22 02:03:33,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:03:33,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:33,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:33,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:03:33,191 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:33,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:33,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2070906749, now seen corresponding path program 1 times [2022-11-22 02:03:33,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:33,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160124849] [2022-11-22 02:03:33,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:33,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:33,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:33,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160124849] [2022-11-22 02:03:33,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160124849] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:33,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412836409] [2022-11-22 02:03:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:33,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:33,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:33,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:33,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:03:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:33,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:03:33,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:33,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:33,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:33,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:33,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412836409] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:33,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1373230443] [2022-11-22 02:03:33,616 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-22 02:03:33,617 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:03:33,620 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:03:33,625 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:03:33,631 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:03:33,793 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:03:33,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 02:03:33,876 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:33,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:03:33,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 02:03:34,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-22 02:03:34,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:03:34,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-11-22 02:03:34,272 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 02:03:34,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 02:03:34,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:03:34,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-11-22 02:03:34,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:03:34,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:03:34,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:03:34,911 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-11-22 02:03:34,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 401 treesize of output 406 [2022-11-22 02:03:35,057 INFO L321 Elim1Store]: treesize reduction 196, result has 10.5 percent of original size [2022-11-22 02:03:35,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 406 [2022-11-22 02:03:35,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:35,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:35,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:35,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:35,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 44 [2022-11-22 02:03:35,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:35,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:35,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:03:35,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:35,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:03:35,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:35,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:03:35,862 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-11-22 02:03:35,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-11-22 02:03:35,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:03:35,984 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:03:38,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1373230443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:38,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:03:38,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 4, 4] total 11 [2022-11-22 02:03:38,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54714211] [2022-11-22 02:03:38,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:38,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:03:38,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:38,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:03:38,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:03:38,010 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-22 02:03:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:38,248 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2022-11-22 02:03:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:03:38,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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 [2022-11-22 02:03:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:38,250 INFO L225 Difference]: With dead ends: 69 [2022-11-22 02:03:38,250 INFO L226 Difference]: Without dead ends: 50 [2022-11-22 02:03:38,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:03:38,251 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 59 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:38,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 66 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:03:38,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-22 02:03:38,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2022-11-22 02:03:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 37 states have internal predecessors, (42), 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) [2022-11-22 02:03:38,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-22 02:03:38,260 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 8 [2022-11-22 02:03:38,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:38,261 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-22 02:03:38,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-11-22 02:03:38,261 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-22 02:03:38,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:03:38,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:38,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:38,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 02:03:38,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:38,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:38,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:38,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1472796847, now seen corresponding path program 1 times [2022-11-22 02:03:38,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:38,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215938729] [2022-11-22 02:03:38,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:38,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:03:38,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:38,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215938729] [2022-11-22 02:03:38,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215938729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:38,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:38,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:03:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932383537] [2022-11-22 02:03:38,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:38,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:03:38,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:38,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:03:38,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:03:38,608 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:38,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:38,696 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2022-11-22 02:03:38,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:03:38,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 02:03:38,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:38,703 INFO L225 Difference]: With dead ends: 62 [2022-11-22 02:03:38,703 INFO L226 Difference]: Without dead ends: 60 [2022-11-22 02:03:38,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:38,705 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:38,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 59 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:03:38,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-22 02:03:38,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 43. [2022-11-22 02:03:38,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 42 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) [2022-11-22 02:03:38,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2022-11-22 02:03:38,728 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 11 [2022-11-22 02:03:38,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:38,728 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2022-11-22 02:03:38,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:38,728 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-11-22 02:03:38,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:03:38,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:38,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:38,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:03:38,729 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:38,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:38,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1472793487, now seen corresponding path program 1 times [2022-11-22 02:03:38,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:38,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250749266] [2022-11-22 02:03:38,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:38,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:38,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:03:38,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:38,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250749266] [2022-11-22 02:03:38,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250749266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:38,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:38,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:03:38,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314763905] [2022-11-22 02:03:38,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:38,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:03:38,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:38,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:03:38,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:03:38,839 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:38,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:38,937 INFO L93 Difference]: Finished difference Result 125 states and 140 transitions. [2022-11-22 02:03:38,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:03:38,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 02:03:38,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:38,939 INFO L225 Difference]: With dead ends: 125 [2022-11-22 02:03:38,939 INFO L226 Difference]: Without dead ends: 91 [2022-11-22 02:03:38,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:03:38,940 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 73 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:38,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 66 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:03:38,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-22 02:03:38,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 41. [2022-11-22 02:03:38,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 40 states have internal predecessors, (45), 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) [2022-11-22 02:03:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-11-22 02:03:38,952 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 11 [2022-11-22 02:03:38,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:38,953 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-11-22 02:03:38,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:38,953 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-11-22 02:03:38,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:03:38,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:38,954 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:38,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:03:38,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:38,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1294929578, now seen corresponding path program 1 times [2022-11-22 02:03:38,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:38,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274796739] [2022-11-22 02:03:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:38,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:03:39,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:39,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274796739] [2022-11-22 02:03:39,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274796739] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:39,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872611421] [2022-11-22 02:03:39,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:39,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:39,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:39,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:39,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:03:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:39,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:03:39,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:03:39,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:03:39,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872611421] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:39,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1968396599] [2022-11-22 02:03:39,257 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-22 02:03:39,257 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:03:39,257 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:03:39,257 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:03:39,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:03:39,322 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:39,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:03:39,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:03:39,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:39,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-11-22 02:03:39,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:39,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:03:39,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:39,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:03:39,543 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 02:03:39,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 02:03:39,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:03:39,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:39,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-11-22 02:03:39,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:39,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:03:39,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:39,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:03:39,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:39,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:03:40,150 INFO L321 Elim1Store]: treesize reduction 180, result has 17.8 percent of original size [2022-11-22 02:03:40,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 422 [2022-11-22 02:03:40,200 INFO L321 Elim1Store]: treesize reduction 91, result has 10.8 percent of original size [2022-11-22 02:03:40,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 401 treesize of output 406 [2022-11-22 02:03:40,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:40,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:40,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,689 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-11-22 02:03:40,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 414 treesize of output 379 [2022-11-22 02:03:40,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:40,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:40,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,769 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2022-11-22 02:03:40,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 430 treesize of output 386 [2022-11-22 02:03:40,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:40,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,844 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-11-22 02:03:40,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 353 [2022-11-22 02:03:40,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:40,869 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,901 INFO L321 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2022-11-22 02:03:40,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 404 [2022-11-22 02:03:40,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,929 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,958 INFO L321 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2022-11-22 02:03:40,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 417 treesize of output 356 [2022-11-22 02:03:40,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:40,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:41,014 INFO L321 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2022-11-22 02:03:41,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 429 treesize of output 419 [2022-11-22 02:03:41,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:41,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:41,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:41,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:41,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:41,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:41,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:41,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:41,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:41,867 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-11-22 02:03:41,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 401 treesize of output 406 [2022-11-22 02:03:41,966 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-11-22 02:03:41,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-11-22 02:03:42,284 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:03:44,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1968396599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:44,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:03:44,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 14 [2022-11-22 02:03:44,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217316199] [2022-11-22 02:03:44,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:44,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:03:44,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:44,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:03:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-11-22 02:03:44,091 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:45,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:45,142 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2022-11-22 02:03:45,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:03:45,142 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 02:03:45,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:45,143 INFO L225 Difference]: With dead ends: 75 [2022-11-22 02:03:45,143 INFO L226 Difference]: Without dead ends: 69 [2022-11-22 02:03:45,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:03:45,144 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 140 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:45,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 94 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:03:45,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-22 02:03:45,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 48. [2022-11-22 02:03:45,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.5) internal successors, (54), 47 states have internal predecessors, (54), 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) [2022-11-22 02:03:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-11-22 02:03:45,156 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 14 [2022-11-22 02:03:45,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:45,156 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-11-22 02:03:45,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-11-22 02:03:45,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 02:03:45,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:45,156 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:45,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:45,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:45,362 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:45,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:45,362 INFO L85 PathProgramCache]: Analyzing trace with hash 149268246, now seen corresponding path program 1 times [2022-11-22 02:03:45,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:45,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748731080] [2022-11-22 02:03:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:45,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:03:45,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:45,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748731080] [2022-11-22 02:03:45,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748731080] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:45,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072165646] [2022-11-22 02:03:45,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:45,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:45,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:45,458 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:45,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:03:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:45,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:03:45,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:03:45,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:03:45,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072165646] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:45,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [71545259] [2022-11-22 02:03:45,601 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-22 02:03:45,602 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:03:45,602 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:03:45,602 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:03:45,602 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:03:45,653 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:45,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:03:45,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:03:45,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:45,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:45,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:45,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-11-22 02:03:45,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:45,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:45,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:03:45,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:45,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 02:03:45,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:45,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-22 02:03:45,858 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-22 02:03:45,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-11-22 02:03:45,935 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 02:03:45,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 02:03:46,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:46,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:46,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:46,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-11-22 02:03:46,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:46,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:46,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:03:46,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:46,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:03:46,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:46,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:03:46,417 INFO L321 Elim1Store]: treesize reduction 180, result has 17.8 percent of original size [2022-11-22 02:03:46,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 422 [2022-11-22 02:03:46,473 INFO L321 Elim1Store]: treesize reduction 91, result has 10.8 percent of original size [2022-11-22 02:03:46,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 401 treesize of output 406 [2022-11-22 02:03:46,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:46,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:46,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:46,908 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-11-22 02:03:46,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 353 [2022-11-22 02:03:46,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:46,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:46,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:46,977 INFO L321 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2022-11-22 02:03:46,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 417 treesize of output 356 [2022-11-22 02:03:47,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:47,024 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-11-22 02:03:47,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 426 treesize of output 391 [2022-11-22 02:03:47,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:47,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:47,085 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2022-11-22 02:03:47,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 442 treesize of output 398 [2022-11-22 02:03:47,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:47,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:47,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:47,148 INFO L321 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2022-11-22 02:03:47,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 427 treesize of output 416 [2022-11-22 02:03:47,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:47,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:47,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:47,193 INFO L321 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2022-11-22 02:03:47,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 429 treesize of output 419 [2022-11-22 02:03:47,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:47,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:47,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:47,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:47,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:47,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 31 [2022-11-22 02:03:47,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:47,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:47,902 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:03:49,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [71545259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:49,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:03:49,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 13 [2022-11-22 02:03:49,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101566149] [2022-11-22 02:03:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:49,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:03:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:49,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:03:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-22 02:03:49,767 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:49,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:49,969 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-11-22 02:03:49,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 02:03:49,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-22 02:03:49,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:49,970 INFO L225 Difference]: With dead ends: 76 [2022-11-22 02:03:49,970 INFO L226 Difference]: Without dead ends: 56 [2022-11-22 02:03:49,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-22 02:03:49,971 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 69 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:49,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 70 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:03:49,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-22 02:03:49,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 47. [2022-11-22 02:03:49,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 35 states have (on average 1.4857142857142858) internal successors, (52), 46 states have internal predecessors, (52), 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) [2022-11-22 02:03:49,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-22 02:03:49,982 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 17 [2022-11-22 02:03:49,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:49,983 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-22 02:03:49,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:49,983 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-22 02:03:49,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 02:03:49,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:49,984 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:49,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:50,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:50,189 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:50,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1559254851, now seen corresponding path program 1 times [2022-11-22 02:03:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:50,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608989599] [2022-11-22 02:03:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:50,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 02:03:50,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:50,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608989599] [2022-11-22 02:03:50,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608989599] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:50,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419405167] [2022-11-22 02:03:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:50,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:50,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:50,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:50,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:03:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:50,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:03:50,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:50,427 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 02:03:50,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:50,448 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 02:03:50,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419405167] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:50,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1891031631] [2022-11-22 02:03:50,451 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 02:03:50,452 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:03:50,452 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:03:50,452 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:03:50,452 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:03:50,508 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:03:50,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 02:03:50,546 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:50,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:03:50,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:50,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:50,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:03:50,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:50,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:50,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:03:50,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:50,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:50,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:50,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-11-22 02:03:50,698 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-22 02:03:50,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-11-22 02:03:50,762 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 02:03:50,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 02:03:50,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:50,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:50,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:50,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-11-22 02:03:50,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:50,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:50,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:03:50,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:50,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:03:50,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:50,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:03:51,243 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-11-22 02:03:51,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-11-22 02:03:51,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:03:51,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:51,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:51,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:51,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 44 [2022-11-22 02:03:51,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:51,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:51,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:03:51,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:51,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:03:51,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:51,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:03:51,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:51,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:51,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:51,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:51,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:51,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:52,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:52,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:52,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:52,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:52,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:52,535 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:03:55,133 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1561#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 0 |ULTIMATE.start_sll_update_at_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= 0 |ULTIMATE.start_sll_update_at_#in~index#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_create_~len#1| 0) (<= |ULTIMATE.start_sll_create_#res#1.offset| 0) (<= 2 |ULTIMATE.start_sll_update_at_~data#1|) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= |ULTIMATE.start_sll_update_at_~index#1| 0) (< 2147483646 |ULTIMATE.start_main_#t~post13#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_update_at_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_sll_update_at_~index#1|) (<= 2 |ULTIMATE.start_sll_update_at_#in~data#1|) (<= 0 |ULTIMATE.start_sll_create_#res#1.offset|) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 02:03:55,133 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:03:55,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:03:55,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-11-22 02:03:55,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857972328] [2022-11-22 02:03:55,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:03:55,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:03:55,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:55,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:03:55,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-22 02:03:55,135 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) [2022-11-22 02:03:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:55,198 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2022-11-22 02:03:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:03:55,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) Word has length 20 [2022-11-22 02:03:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:55,199 INFO L225 Difference]: With dead ends: 92 [2022-11-22 02:03:55,199 INFO L226 Difference]: Without dead ends: 51 [2022-11-22 02:03:55,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:03:55,205 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:55,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:03:55,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-22 02:03:55,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-22 02:03:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 39 states have (on average 1.435897435897436) internal successors, (56), 50 states have internal predecessors, (56), 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) [2022-11-22 02:03:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-11-22 02:03:55,233 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 20 [2022-11-22 02:03:55,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:55,233 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-11-22 02:03:55,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 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) [2022-11-22 02:03:55,233 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-11-22 02:03:55,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 02:03:55,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:55,235 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:55,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:55,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:55,441 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:03:55,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:55,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1162581014, now seen corresponding path program 2 times [2022-11-22 02:03:55,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:55,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186924363] [2022-11-22 02:03:55,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:55,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 02:03:55,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:55,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186924363] [2022-11-22 02:03:55,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186924363] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:03:55,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497458128] [2022-11-22 02:03:55,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:03:55,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:55,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:55,697 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:55,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:03:55,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 02:03:55,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:03:55,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:03:55,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 02:03:55,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 02:03:55,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497458128] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:55,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1977094072] [2022-11-22 02:03:55,909 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 02:03:55,909 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:03:55,909 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:03:55,910 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:03:55,910 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:03:55,955 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:03:55,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 02:03:55,997 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:55,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:03:56,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:56,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:56,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:56,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-11-22 02:03:56,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:56,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 02:03:56,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:56,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-22 02:03:56,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:56,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 02:03:56,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:56,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-22 02:03:56,163 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-22 02:03:56,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2022-11-22 02:03:56,225 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 02:03:56,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 02:03:56,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:56,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:56,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:56,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-11-22 02:03:56,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:56,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:56,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:03:56,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:56,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:03:56,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:56,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:03:56,636 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-11-22 02:03:56,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 401 treesize of output 406 [2022-11-22 02:03:56,724 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-11-22 02:03:56,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-11-22 02:03:57,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:57,058 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,104 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-11-22 02:03:57,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 353 [2022-11-22 02:03:57,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,170 INFO L321 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2022-11-22 02:03:57,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 417 treesize of output 356 [2022-11-22 02:03:57,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:57,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,235 INFO L321 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2022-11-22 02:03:57,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 427 treesize of output 416 [2022-11-22 02:03:57,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:57,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:57,275 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-11-22 02:03:57,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 426 treesize of output 391 [2022-11-22 02:03:57,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:57,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:57,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:57,342 INFO L321 Elim1Store]: treesize reduction 102, result has 21.5 percent of original size [2022-11-22 02:03:57,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 442 treesize of output 398 [2022-11-22 02:03:57,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:57,395 INFO L321 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2022-11-22 02:03:57,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 429 treesize of output 419 [2022-11-22 02:03:57,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:57,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:57,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:57,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:57,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:57,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:03:58,105 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-22 02:03:58,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 141 [2022-11-22 02:03:58,135 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-22 02:03:58,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 135 [2022-11-22 02:03:58,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:58,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:03:58,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:03:58,433 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:04:00,521 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1902#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 0 |ULTIMATE.start_sll_update_at_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= 0 |ULTIMATE.start_sll_update_at_#in~index#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_create_~len#1| 0) (<= |ULTIMATE.start_sll_create_#res#1.offset| 0) (<= 2 |ULTIMATE.start_sll_update_at_~data#1|) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= |ULTIMATE.start_sll_update_at_~index#1| 0) (< 2147483646 |ULTIMATE.start_main_#t~post13#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_update_at_#in~head#1.offset| 0) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_sll_update_at_~index#1|) (<= 2 |ULTIMATE.start_sll_update_at_#in~data#1|) (<= 0 |ULTIMATE.start_sll_create_#res#1.offset|) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 02:04:00,522 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:04:00,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:04:00,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2022-11-22 02:04:00,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991017092] [2022-11-22 02:04:00,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:04:00,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:04:00,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:00,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:04:00,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:04:00,524 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:00,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:00,766 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2022-11-22 02:04:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:04:00,767 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-22 02:04:00,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:00,767 INFO L225 Difference]: With dead ends: 76 [2022-11-22 02:04:00,767 INFO L226 Difference]: Without dead ends: 73 [2022-11-22 02:04:00,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=169, Invalid=643, Unknown=0, NotChecked=0, Total=812 [2022-11-22 02:04:00,769 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 107 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:00,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 85 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:04:00,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-22 02:04:00,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 48. [2022-11-22 02:04:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 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) [2022-11-22 02:04:00,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-11-22 02:04:00,796 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 24 [2022-11-22 02:04:00,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:00,797 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-11-22 02:04:00,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:00,797 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-11-22 02:04:00,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 02:04:00,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:00,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:00,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-22 02:04:01,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 02:04:01,003 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:04:01,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:01,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1162577654, now seen corresponding path program 1 times [2022-11-22 02:04:01,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:01,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493244518] [2022-11-22 02:04:01,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:01,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:01,180 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 02:04:01,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:01,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493244518] [2022-11-22 02:04:01,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493244518] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:04:01,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356597053] [2022-11-22 02:04:01,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:01,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:04:01,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:01,182 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:04:01,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 02:04:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:01,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 02:04:01,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:04:01,354 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 02:04:01,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:04:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 02:04:01,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356597053] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:04:01,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [446707760] [2022-11-22 02:04:01,414 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 02:04:01,415 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:04:01,415 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:04:01,415 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:04:01,415 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:04:01,461 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:04:01,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 02:04:01,502 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:04:01,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:04:01,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:01,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:01,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:04:01,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:01,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:01,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:01,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-11-22 02:04:01,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:01,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:01,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:04:01,686 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 02:04:01,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 02:04:01,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:04:01,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:01,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:01,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:01,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-11-22 02:04:01,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:01,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:01,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:04:01,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:01,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:04:01,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:01,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:04:02,168 INFO L321 Elim1Store]: treesize reduction 180, result has 17.8 percent of original size [2022-11-22 02:04:02,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 422 [2022-11-22 02:04:02,224 INFO L321 Elim1Store]: treesize reduction 91, result has 10.8 percent of original size [2022-11-22 02:04:02,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 401 treesize of output 406 [2022-11-22 02:04:02,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:02,580 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-11-22 02:04:02,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 414 treesize of output 379 [2022-11-22 02:04:02,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:02,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,662 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-11-22 02:04:02,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 353 [2022-11-22 02:04:02,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:02,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:02,721 INFO L321 Elim1Store]: treesize reduction 86, result has 19.6 percent of original size [2022-11-22 02:04:02,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 430 treesize of output 386 [2022-11-22 02:04:02,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,747 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,781 INFO L321 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2022-11-22 02:04:02,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 417 treesize of output 356 [2022-11-22 02:04:02,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:02,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,833 INFO L321 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2022-11-22 02:04:02,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 427 treesize of output 416 [2022-11-22 02:04:02,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:02,877 INFO L321 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2022-11-22 02:04:02,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 429 treesize of output 419 [2022-11-22 02:04:03,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:03,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:03,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:03,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:03,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:03,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:03,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:03,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:03,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:03,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:04:03,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:04:03,822 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:04:05,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [446707760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:05,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:04:05,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8, 8] total 19 [2022-11-22 02:04:05,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142254490] [2022-11-22 02:04:05,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:05,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:04:05,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:05,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:04:05,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:04:05,847 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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) [2022-11-22 02:04:06,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:06,411 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2022-11-22 02:04:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:04:06,411 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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) Word has length 24 [2022-11-22 02:04:06,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:06,412 INFO L225 Difference]: With dead ends: 62 [2022-11-22 02:04:06,412 INFO L226 Difference]: Without dead ends: 57 [2022-11-22 02:04:06,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 51 SyntacticMatches, 10 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:04:06,413 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 58 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:06,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 42 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:04:06,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-22 02:04:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 45. [2022-11-22 02:04:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.25) internal successors, (50), 44 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) [2022-11-22 02:04:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-11-22 02:04:06,430 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 24 [2022-11-22 02:04:06,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:06,431 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-11-22 02:04:06,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 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) [2022-11-22 02:04:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-11-22 02:04:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 02:04:06,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:06,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:06,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:04:06,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 02:04:06,642 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:04:06,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:06,643 INFO L85 PathProgramCache]: Analyzing trace with hash 313166407, now seen corresponding path program 1 times [2022-11-22 02:04:06,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:06,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597029627] [2022-11-22 02:04:06,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:06,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:06,765 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:04:06,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:06,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597029627] [2022-11-22 02:04:06,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597029627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:06,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:06,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:04:06,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257545288] [2022-11-22 02:04:06,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:06,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:04:06,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:06,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:04:06,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:04:06,768 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2022-11-22 02:04:06,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:06,832 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2022-11-22 02:04:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:04:06,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) Word has length 31 [2022-11-22 02:04:06,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:06,834 INFO L225 Difference]: With dead ends: 71 [2022-11-22 02:04:06,834 INFO L226 Difference]: Without dead ends: 57 [2022-11-22 02:04:06,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:04:06,835 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 20 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:06,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 52 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:04:06,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-22 02:04:06,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2022-11-22 02:04:06,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 45 states have internal predecessors, (51), 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) [2022-11-22 02:04:06,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-11-22 02:04:06,852 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 31 [2022-11-22 02:04:06,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:06,852 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-11-22 02:04:06,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2022-11-22 02:04:06,853 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-11-22 02:04:06,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 02:04:06,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:06,854 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:06,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:04:06,854 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:04:06,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:06,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1118286044, now seen corresponding path program 1 times [2022-11-22 02:04:06,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:06,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408286497] [2022-11-22 02:04:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:06,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:04:06,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:06,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408286497] [2022-11-22 02:04:06,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408286497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:06,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:06,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:04:06,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735872096] [2022-11-22 02:04:06,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:06,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:04:06,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:06,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:04:06,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:04:06,932 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:06,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:06,993 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-11-22 02:04:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:04:06,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 02:04:06,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:06,994 INFO L225 Difference]: With dead ends: 53 [2022-11-22 02:04:06,995 INFO L226 Difference]: Without dead ends: 51 [2022-11-22 02:04:06,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:04:06,995 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:06,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 45 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:04:06,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-22 02:04:07,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2022-11-22 02:04:07,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 48 states have internal predecessors, (54), 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) [2022-11-22 02:04:07,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-11-22 02:04:07,007 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 32 [2022-11-22 02:04:07,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:07,007 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-11-22 02:04:07,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:07,007 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-11-22 02:04:07,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-22 02:04:07,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:07,008 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:07,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:04:07,008 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:04:07,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1404009340, now seen corresponding path program 1 times [2022-11-22 02:04:07,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:07,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851805728] [2022-11-22 02:04:07,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:07,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:07,167 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 02:04:07,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:07,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851805728] [2022-11-22 02:04:07,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851805728] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:04:07,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536794812] [2022-11-22 02:04:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:07,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:04:07,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:07,170 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:04:07,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 02:04:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:07,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:04:07,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:04:07,421 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:04:07,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:04:07,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536794812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:07,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:04:07,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-22 02:04:07,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52635072] [2022-11-22 02:04:07,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:07,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:04:07,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:07,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:04:07,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:04:07,427 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-11-22 02:04:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:07,518 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2022-11-22 02:04:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:04:07,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 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 36 [2022-11-22 02:04:07,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:07,521 INFO L225 Difference]: With dead ends: 51 [2022-11-22 02:04:07,521 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 02:04:07,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:04:07,523 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:07,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 40 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:04:07,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 02:04:07,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2022-11-22 02:04:07,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 43 states have (on average 1.186046511627907) internal successors, (51), 45 states have internal predecessors, (51), 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) [2022-11-22 02:04:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-11-22 02:04:07,537 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 36 [2022-11-22 02:04:07,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:07,537 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-11-22 02:04:07,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2022-11-22 02:04:07,537 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-11-22 02:04:07,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 02:04:07,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:07,541 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:07,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 02:04:07,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 02:04:07,750 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:04:07,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:07,751 INFO L85 PathProgramCache]: Analyzing trace with hash 633248766, now seen corresponding path program 1 times [2022-11-22 02:04:07,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:07,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299933470] [2022-11-22 02:04:07,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:07,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:04:07,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:07,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299933470] [2022-11-22 02:04:07,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299933470] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:04:07,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939172153] [2022-11-22 02:04:07,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:07,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:04:07,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:07,926 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:04:07,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 02:04:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:08,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:04:08,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:04:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:04:08,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:04:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:04:08,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939172153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:04:08,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [154801982] [2022-11-22 02:04:08,200 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-22 02:04:08,200 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:04:08,201 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:04:08,201 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:04:08,201 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:04:08,257 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:04:08,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:04:08,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:04:08,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:08,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 02:04:08,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:08,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-22 02:04:08,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:08,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:08,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:04:08,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:08,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:08,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-11-22 02:04:08,430 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 02:04:08,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 02:04:08,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:04:08,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:08,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:08,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:08,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-11-22 02:04:08,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:08,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:08,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:04:08,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:08,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:04:08,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:08,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:04:08,848 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-11-22 02:04:08,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 401 treesize of output 406 [2022-11-22 02:04:08,936 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-11-22 02:04:08,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-11-22 02:04:09,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:09,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:09,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:09,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,285 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-11-22 02:04:09,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 414 treesize of output 379 [2022-11-22 02:04:09,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:09,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,369 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-11-22 02:04:09,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 353 [2022-11-22 02:04:09,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:09,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:09,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:09,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,460 INFO L321 Elim1Store]: treesize reduction 102, result has 21.5 percent of original size [2022-11-22 02:04:09,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 430 treesize of output 386 [2022-11-22 02:04:09,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:09,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,520 INFO L321 Elim1Store]: treesize reduction 66, result has 25.8 percent of original size [2022-11-22 02:04:09,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 404 [2022-11-22 02:04:09,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,571 INFO L321 Elim1Store]: treesize reduction 58, result has 22.7 percent of original size [2022-11-22 02:04:09,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 417 treesize of output 356 [2022-11-22 02:04:09,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:09,620 INFO L321 Elim1Store]: treesize reduction 88, result has 20.7 percent of original size [2022-11-22 02:04:09,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 429 treesize of output 419 [2022-11-22 02:04:10,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:10,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:10,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:10,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:10,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:10,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:10,344 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-22 02:04:10,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 251 treesize of output 249 [2022-11-22 02:04:10,377 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-22 02:04:10,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 245 treesize of output 243 [2022-11-22 02:04:10,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:10,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:04:10,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:04:10,898 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:04:14,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [154801982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:14,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:04:14,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6, 6, 6] total 27 [2022-11-22 02:04:14,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951002261] [2022-11-22 02:04:14,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:14,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 02:04:14,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 02:04:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2022-11-22 02:04:14,815 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:15,985 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2022-11-22 02:04:15,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 02:04:15,985 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-22 02:04:15,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:15,986 INFO L225 Difference]: With dead ends: 67 [2022-11-22 02:04:15,986 INFO L226 Difference]: Without dead ends: 64 [2022-11-22 02:04:15,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 82 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2022-11-22 02:04:15,987 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 52 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:15,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 46 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:04:15,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-22 02:04:16,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 53. [2022-11-22 02:04:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 50 states have (on average 1.18) internal successors, (59), 52 states have internal predecessors, (59), 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) [2022-11-22 02:04:16,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-11-22 02:04:16,005 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 38 [2022-11-22 02:04:16,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:16,005 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-11-22 02:04:16,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:16,006 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-11-22 02:04:16,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-22 02:04:16,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:16,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:16,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 02:04:16,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 02:04:16,214 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-22 02:04:16,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:16,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1617750852, now seen corresponding path program 1 times [2022-11-22 02:04:16,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:16,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247168030] [2022-11-22 02:04:16,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:16,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:16,390 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:04:16,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:16,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247168030] [2022-11-22 02:04:16,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247168030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:04:16,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179458085] [2022-11-22 02:04:16,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:16,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:04:16,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:16,394 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:04:16,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 02:04:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:16,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 02:04:16,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:04:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:04:16,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:04:16,655 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 02:04:16,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179458085] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:04:16,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [17780776] [2022-11-22 02:04:16,658 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 02:04:16,658 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:04:16,658 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:04:16,658 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:04:16,659 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:04:16,723 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:04:16,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 02:04:16,766 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:04:16,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:04:16,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:16,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 28 [2022-11-22 02:04:16,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-22 02:04:16,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:16,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-22 02:04:16,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:16,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:16,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2022-11-22 02:04:16,930 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 02:04:16,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-22 02:04:16,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:04:17,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:17,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:17,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:17,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 38 [2022-11-22 02:04:17,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:17,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:17,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:04:17,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:17,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:04:17,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:17,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:04:17,403 INFO L321 Elim1Store]: treesize reduction 188, result has 14.2 percent of original size [2022-11-22 02:04:17,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 406 treesize of output 414 [2022-11-22 02:04:17,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:04:17,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:17,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:17,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:17,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 44 [2022-11-22 02:04:17,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:17,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:17,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-22 02:04:17,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:17,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:04:17,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:17,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2022-11-22 02:04:17,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:17,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:17,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:17,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:17,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:17,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 02:04:18,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:18,160 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-22 02:04:18,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 250 treesize of output 248 [2022-11-22 02:04:18,197 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-22 02:04:18,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 242 [2022-11-22 02:04:18,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:04:18,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:04:18,873 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:04:22,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [17780776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:22,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:04:22,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [8, 8, 8] total 25 [2022-11-22 02:04:22,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306035929] [2022-11-22 02:04:22,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:22,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 02:04:22,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:22,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 02:04:22,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2022-11-22 02:04:22,055 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 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) [2022-11-22 02:04:23,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:23,690 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2022-11-22 02:04:23,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 02:04:23,691 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 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 41 [2022-11-22 02:04:23,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:23,691 INFO L225 Difference]: With dead ends: 53 [2022-11-22 02:04:23,691 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:04:23,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 91 SyntacticMatches, 15 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=187, Invalid=805, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:04:23,692 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:23,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:04:23,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:04:23,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:04:23,694 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) [2022-11-22 02:04:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:04:23,694 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2022-11-22 02:04:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:23,694 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:04:23,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 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) [2022-11-22 02:04:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:04:23,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:04:23,697 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-22 02:04:23,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-22 02:04:23,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-22 02:04:23,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-22 02:04:23,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-22 02:04:23,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-22 02:04:23,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-11-22 02:04:23,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-11-22 02:04:23,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-22 02:04:23,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-22 02:04:23,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-22 02:04:23,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-22 02:04:23,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-22 02:04:23,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-22 02:04:23,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 02:04:23,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 02:04:23,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:04:30,232 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2022-11-22 02:04:30,232 INFO L902 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: true [2022-11-22 02:04:30,233 INFO L899 garLoopResultBuilder]: For program point L622-3(line 622) no Hoare annotation was computed. [2022-11-22 02:04:30,233 INFO L899 garLoopResultBuilder]: For program point L622-4(line 622) no Hoare annotation was computed. [2022-11-22 02:04:30,233 INFO L895 garLoopResultBuilder]: At program point L622-5(lines 622 627) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~s~0#1.offset|)) (.cse1 (<= 1 |ULTIMATE.start_node_create_~data#1|)) (.cse2 (<= 1 |ULTIMATE.start_sll_create_#in~data#1|)) (.cse3 (<= |ULTIMATE.start_sll_create_#in~data#1| 1)) (.cse4 (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0)) (.cse5 (<= |ULTIMATE.start_sll_create_~len#1| 0)) (.cse6 (<= |ULTIMATE.start_sll_create_#res#1.offset| 0)) (.cse7 (<= 1 |ULTIMATE.start_sll_create_~data#1|)) (.cse8 (<= 1 |ULTIMATE.start_node_create_#in~data#1|)) (.cse9 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse10 (<= |ULTIMATE.start_node_create_#in~data#1| 1)) (.cse11 (<= |ULTIMATE.start_sll_create_~data#1| 1)) (.cse12 (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|)) (.cse13 (<= |ULTIMATE.start_sll_create_#in~len#1| 2)) (.cse14 (<= 0 |ULTIMATE.start_sll_create_~len#1|)) (.cse15 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse16 (= |#NULL.offset| 0)) (.cse17 (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0)) (.cse18 (<= 0 |ULTIMATE.start_sll_create_#res#1.offset|)) (.cse19 (<= |ULTIMATE.start_node_create_~data#1| 1)) (.cse20 (<= 0 |#StackHeapBarrier|)) (.cse21 (<= 2 |ULTIMATE.start_sll_create_#in~len#1|)) (.cse22 (<= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse23 (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|)) (.cse24 (<= |ULTIMATE.start_sll_create_~len#1| 2)) (.cse25 (= |#NULL.base| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25) (and .cse0 (<= |ULTIMATE.start_main_~expected~0#1| 4) .cse1 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse2 (<= 0 (+ |ULTIMATE.start_sll_get_data_at_~index#1| 1)) .cse3 .cse4 (<= |ULTIMATE.start_main_~i~0#1| 2) .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_sll_get_data_at_#in~index#1| 2) .cse9 .cse10 (<= 0 |ULTIMATE.start_sll_get_data_at_#in~head#1.offset|) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_sll_get_data_at_~index#1| 2) .cse19 .cse20 .cse21 .cse22 (<= 0 |ULTIMATE.start_sll_get_data_at_#in~index#1|) (<= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| 0) .cse23 .cse24 .cse25))) [2022-11-22 02:04:30,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 618) no Hoare annotation was computed. [2022-11-22 02:04:30,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 585) no Hoare annotation was computed. [2022-11-22 02:04:30,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:04:30,234 INFO L902 garLoopResultBuilder]: At program point L631(lines 613 632) the Hoare annotation is: true [2022-11-22 02:04:30,234 INFO L899 garLoopResultBuilder]: For program point L623(line 623) no Hoare annotation was computed. [2022-11-22 02:04:30,234 INFO L899 garLoopResultBuilder]: For program point L623-1(line 623) no Hoare annotation was computed. [2022-11-22 02:04:30,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-11-22 02:04:30,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 585) no Hoare annotation was computed. [2022-11-22 02:04:30,235 INFO L895 garLoopResultBuilder]: At program point L607-2(lines 607 610) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_sll_update_at_~index#1| 1)) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_node_create_~data#1|) (<= 0 |ULTIMATE.start_sll_update_at_#in~head#1.offset|) (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= 0 |ULTIMATE.start_sll_update_at_#in~index#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_create_~len#1| 0) (<= |ULTIMATE.start_sll_create_#res#1.offset| 0) (<= 2 |ULTIMATE.start_sll_update_at_~data#1|) (<= |ULTIMATE.start_sll_update_at_~data#1| 4) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_sll_update_at_#in~data#1| 4) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~new_data~0#1| 4) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_update_at_#in~head#1.offset| 0) (<= |ULTIMATE.start_node_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= |ULTIMATE.start_sll_update_at_~index#1| 2) (<= 2 |ULTIMATE.start_sll_update_at_#in~data#1|) (<= 0 |ULTIMATE.start_sll_create_#res#1.offset|) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= |ULTIMATE.start_sll_update_at_#in~index#1| 2) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |#NULL.base| 0)) [2022-11-22 02:04:30,235 INFO L895 garLoopResultBuilder]: At program point L624(lines 624 626) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_node_create_~data#1|)) (.cse1 (= (select (select |#memory_int| |ULTIMATE.start_sll_get_data_at_~head#1.base|) |ULTIMATE.start_sll_get_data_at_~head#1.offset|) |ULTIMATE.start_sll_get_data_at_#res#1|)) (.cse2 (= |ULTIMATE.start_sll_get_data_at_#res#1| |ULTIMATE.start_main_#t~ret15#1|)) (.cse3 (<= 1 |ULTIMATE.start_sll_create_#in~data#1|)) (.cse4 (<= |ULTIMATE.start_sll_create_#in~data#1| 1)) (.cse5 (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0)) (.cse6 (<= 0 (+ |ULTIMATE.start_main_#t~ret15#1| 2147483648))) (.cse7 (<= |ULTIMATE.start_sll_create_~len#1| 0)) (.cse8 (<= |ULTIMATE.start_sll_create_#res#1.offset| 0)) (.cse9 (<= 1 |ULTIMATE.start_sll_create_~data#1|)) (.cse10 (<= 1 |ULTIMATE.start_node_create_#in~data#1|)) (.cse11 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse12 (<= |ULTIMATE.start_main_#t~ret15#1| 2147483647)) (.cse13 (<= |ULTIMATE.start_node_create_#in~data#1| 1)) (.cse14 (<= 0 |ULTIMATE.start_sll_get_data_at_#in~head#1.offset|)) (.cse15 (<= |ULTIMATE.start_sll_create_~data#1| 1)) (.cse16 (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|)) (.cse17 (<= |ULTIMATE.start_sll_create_#in~len#1| 2)) (.cse18 (<= 0 |ULTIMATE.start_sll_create_~len#1|)) (.cse19 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse20 (= |#NULL.offset| 0)) (.cse21 (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0)) (.cse22 (<= 0 |ULTIMATE.start_sll_create_#res#1.offset|)) (.cse23 (<= |ULTIMATE.start_node_create_~data#1| 1)) (.cse24 (<= 0 |#StackHeapBarrier|)) (.cse25 (<= 2 |ULTIMATE.start_sll_create_#in~len#1|)) (.cse26 (<= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| 0)) (.cse27 (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|)) (.cse28 (<= |ULTIMATE.start_sll_create_~len#1| 2)) (.cse29 (= |#NULL.base| 0))) (or (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| |ULTIMATE.start_sll_get_data_at_~head#1.offset|) (= |ULTIMATE.start_sll_get_data_at_#in~index#1| |ULTIMATE.start_main_~i~0#1|) .cse2 .cse3 .cse4 .cse5 (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) .cse18 .cse19 .cse20 .cse21 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= |ULTIMATE.start_sll_get_data_at_#in~index#1| |ULTIMATE.start_sll_get_data_at_~index#1|) .cse22 .cse23 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.base| |ULTIMATE.start_sll_get_data_at_~head#1.base|) .cse24 .cse25 .cse26 .cse27 .cse28 .cse29) (and (<= |ULTIMATE.start_sll_get_data_at_~index#1| 0) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_main_~expected~0#1| 4) .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse2 .cse3 (<= 0 (+ |ULTIMATE.start_sll_get_data_at_~index#1| 1)) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= |ULTIMATE.start_sll_get_data_at_#in~index#1| 2) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 (<= 2 |ULTIMATE.start_main_~expected~0#1|) .cse23 (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|) .cse24 .cse25 (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_get_data_at_#in~index#1|) .cse26 .cse27 .cse28 .cse29))) [2022-11-22 02:04:30,235 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-11-22 02:04:30,235 INFO L895 garLoopResultBuilder]: At program point L600-2(lines 600 603) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_node_create_~data#1|)) (.cse1 (<= 1 |ULTIMATE.start_sll_create_#in~data#1|)) (.cse2 (<= |ULTIMATE.start_sll_create_#in~data#1| 1)) (.cse3 (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0)) (.cse4 (<= |ULTIMATE.start_sll_create_~len#1| 0)) (.cse5 (<= |ULTIMATE.start_sll_create_#res#1.offset| 0)) (.cse6 (<= 1 |ULTIMATE.start_sll_create_~data#1|)) (.cse7 (<= 1 |ULTIMATE.start_node_create_#in~data#1|)) (.cse8 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse9 (<= |ULTIMATE.start_node_create_#in~data#1| 1)) (.cse10 (<= 0 |ULTIMATE.start_sll_get_data_at_#in~head#1.offset|)) (.cse11 (<= |ULTIMATE.start_sll_create_~data#1| 1)) (.cse12 (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|)) (.cse13 (<= |ULTIMATE.start_sll_create_#in~len#1| 2)) (.cse14 (<= 0 |ULTIMATE.start_sll_create_~len#1|)) (.cse15 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse16 (= |#NULL.offset| 0)) (.cse17 (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0)) (.cse18 (<= 0 |ULTIMATE.start_sll_create_#res#1.offset|)) (.cse19 (<= 2 |ULTIMATE.start_main_~expected~0#1|)) (.cse20 (<= |ULTIMATE.start_node_create_~data#1| 1)) (.cse21 (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~len~0#1|)) (.cse22 (<= 0 |#StackHeapBarrier|)) (.cse23 (<= 2 |ULTIMATE.start_sll_create_#in~len#1|)) (.cse24 (<= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| 0)) (.cse25 (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|)) (.cse26 (<= |ULTIMATE.start_sll_create_~len#1| 2)) (.cse27 (= |#NULL.base| 0))) (or (and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_main_~expected~0#1| 4) .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse1 (<= 0 (+ |ULTIMATE.start_sll_get_data_at_~index#1| 1)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= |ULTIMATE.start_sll_get_data_at_#in~index#1| 2) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (<= |ULTIMATE.start_sll_get_data_at_~index#1| 2) .cse20 .cse21 .cse22 .cse23 (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_get_data_at_#in~index#1|) .cse24 .cse25 .cse26 .cse27) (and .cse0 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| |ULTIMATE.start_sll_get_data_at_~head#1.offset|) .cse1 .cse2 .cse3 (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) .cse14 .cse15 .cse16 .cse17 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= |ULTIMATE.start_sll_get_data_at_#in~index#1| |ULTIMATE.start_sll_get_data_at_~index#1|) .cse18 .cse19 .cse20 (= |ULTIMATE.start_sll_get_data_at_#in~head#1.base| |ULTIMATE.start_sll_get_data_at_~head#1.base|) .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (= |ULTIMATE.start_sll_get_data_at_~index#1| 0) .cse27))) [2022-11-22 02:04:30,236 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 602) no Hoare annotation was computed. [2022-11-22 02:04:30,236 INFO L899 garLoopResultBuilder]: For program point L609(line 609) no Hoare annotation was computed. [2022-11-22 02:04:30,236 INFO L895 garLoopResultBuilder]: At program point L576(lines 576 578) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (= 8 (select |#length| |ULTIMATE.start_node_create_~temp~0#1.base|)) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (let ((.cse0 (<= 1 |ULTIMATE.start_node_create_~data#1|))) (or (and .cse0 (<= 0 |ULTIMATE.start_sll_create_~new_head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_create_~len#1|) (<= |ULTIMATE.start_sll_create_~new_head~0#1.offset| 0) (<= |ULTIMATE.start_sll_create_~len#1| 1)) (and .cse0 (<= 0 |ULTIMATE.start_sll_create_~head~0#1.base|) (<= |ULTIMATE.start_sll_create_~head~0#1.base| 0)))) (let ((.cse11 (select |#memory_int| 1))) (let ((.cse1 (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1)) (.cse2 (= 2 (select |#length| 1))) (.cse3 (= (select |#valid| 1) 1)) (.cse4 (= 19 (select |#length| 2))) (.cse5 (= (select |#valid| 0) 0)) (.cse6 (= (select |#valid| 2) 1)) (.cse7 (= (select .cse11 0) 48)) (.cse8 (= (select .cse11 1) 0)) (.cse9 (< 0 |#StackHeapBarrier|))) (or (and .cse1 (= |ULTIMATE.start_sll_create_~len#1| |ULTIMATE.start_sll_create_#in~len#1|) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (let ((.cse10 (+ 4 |ULTIMATE.start_sll_create_~new_head~0#1.offset|))) (and .cse1 (= |ULTIMATE.start_sll_create_~data#1| (select (select |#memory_int| |ULTIMATE.start_sll_create_~new_head~0#1.base|) 0)) .cse2 (not (= |ULTIMATE.start_node_create_~temp~0#1.base| |ULTIMATE.start_sll_create_~new_head~0#1.base|)) (= |ULTIMATE.start_sll_create_~head~0#1.base| |ULTIMATE.start_sll_create_~new_head~0#1.base|) (= (select |#length| |ULTIMATE.start_sll_create_~new_head~0#1.base|) 8) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_create_~new_head~0#1.base|) .cse10) 0) .cse3 .cse4 .cse5 .cse6 .cse7 (= (select |#valid| |ULTIMATE.start_sll_create_~new_head~0#1.base|) 1) .cse8 (< |ULTIMATE.start_sll_create_~new_head~0#1.base| |#StackHeapBarrier|) .cse9 (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_create_~new_head~0#1.base|) .cse10) 0)))))) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~len~0#1| 2) (< |ULTIMATE.start_node_create_~temp~0#1.base| |#StackHeapBarrier|) (= |#NULL.offset| 0) (= |ULTIMATE.start_sll_create_~data#1| |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |#NULL.base| 0)) [2022-11-22 02:04:30,236 INFO L899 garLoopResultBuilder]: For program point L609-1(line 609) no Hoare annotation was computed. [2022-11-22 02:04:30,237 INFO L902 garLoopResultBuilder]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2022-11-22 02:04:30,237 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 602) no Hoare annotation was computed. [2022-11-22 02:04:30,237 INFO L899 garLoopResultBuilder]: For program point L618-3(line 618) no Hoare annotation was computed. [2022-11-22 02:04:30,237 INFO L899 garLoopResultBuilder]: For program point L585-3(line 585) no Hoare annotation was computed. [2022-11-22 02:04:30,237 INFO L899 garLoopResultBuilder]: For program point L618-4(line 618) no Hoare annotation was computed. [2022-11-22 02:04:30,237 INFO L899 garLoopResultBuilder]: For program point L585-4(line 585) no Hoare annotation was computed. [2022-11-22 02:04:30,238 INFO L895 garLoopResultBuilder]: At program point L618-5(lines 618 621) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_node_create_~data#1|) (<= 1 |ULTIMATE.start_sll_create_#in~data#1|) (<= |ULTIMATE.start_sll_create_#in~data#1| 1) (< |ULTIMATE.start_main_~i~0#1| 2147483647) (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_create_~len#1| 0) (<= |ULTIMATE.start_sll_create_#res#1.offset| 0) (<= 1 |ULTIMATE.start_sll_create_~data#1|) (<= 1 |ULTIMATE.start_node_create_#in~data#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_node_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_create_~data#1| 1) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |ULTIMATE.start_sll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_sll_create_~len#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_create_#res#1.offset|) (<= |ULTIMATE.start_node_create_~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_sll_create_#in~len#1|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|) (= |#NULL.base| 0)) [2022-11-22 02:04:30,238 INFO L895 garLoopResultBuilder]: At program point L585-5(lines 585 589) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_sll_create_#in~data#1|)) (.cse1 (<= |ULTIMATE.start_sll_create_#in~data#1| 1)) (.cse2 (<= |ULTIMATE.start_sll_create_~head~0#1.offset| 0)) (.cse3 (<= 1 |ULTIMATE.start_sll_create_~data#1|)) (.cse4 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse5 (<= |ULTIMATE.start_sll_create_~data#1| 1)) (.cse6 (<= |ULTIMATE.start_sll_create_#in~len#1| 2)) (.cse7 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse8 (= |#NULL.offset| 0)) (.cse9 (<= 0 |#StackHeapBarrier|)) (.cse10 (<= 2 |ULTIMATE.start_sll_create_#in~len#1|)) (.cse11 (<= 0 |ULTIMATE.start_sll_create_~head~0#1.offset|)) (.cse12 (= |#NULL.base| 0))) (or (and (= 2 |ULTIMATE.start_sll_create_~len#1|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and (<= 1 |ULTIMATE.start_node_create_~data#1|) .cse0 .cse1 .cse2 .cse3 (<= 1 |ULTIMATE.start_node_create_#in~data#1|) .cse4 (<= |ULTIMATE.start_node_create_#in~data#1| 1) .cse5 (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) .cse6 (<= 0 |ULTIMATE.start_sll_create_~len#1|) .cse7 .cse8 (<= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~data#1| 1) .cse9 .cse10 .cse11 (<= |ULTIMATE.start_sll_create_~len#1| 2) .cse12))) [2022-11-22 02:04:30,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 609) no Hoare annotation was computed. [2022-11-22 02:04:30,238 INFO L899 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2022-11-22 02:04:30,238 INFO L899 garLoopResultBuilder]: For program point L602-1(line 602) no Hoare annotation was computed. [2022-11-22 02:04:30,239 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 622) no Hoare annotation was computed. [2022-11-22 02:04:30,239 INFO L899 garLoopResultBuilder]: For program point L619(line 619) no Hoare annotation was computed. [2022-11-22 02:04:30,239 INFO L899 garLoopResultBuilder]: For program point L619-1(line 619) no Hoare annotation was computed. [2022-11-22 02:04:30,239 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:04:30,239 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 609) no Hoare annotation was computed. [2022-11-22 02:04:30,239 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 622) no Hoare annotation was computed. [2022-11-22 02:04:30,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2022-11-22 02:04:30,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 618) no Hoare annotation was computed. [2022-11-22 02:04:30,243 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:30,245 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:04:30,261 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:04:30,262 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:04:30,265 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:04:30,265 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:04:30,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:04:30 BoogieIcfgContainer [2022-11-22 02:04:30,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:04:30,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:04:30,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:04:30,287 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:04:30,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:03:32" (3/4) ... [2022-11-22 02:04:30,291 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:04:30,301 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2022-11-22 02:04:30,301 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-22 02:04:30,301 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 02:04:30,302 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:04:30,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((2 == len && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && 1 <= data) && data == 1) && data <= 1) && \old(len) <= 2) && len == 2) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head) && #NULL == 0) || ((((((((((((((((((((1 <= data && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && 1 <= data) && 1 <= \old(data)) && data == 1) && \old(data) <= 1) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && data <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head) && len <= 2) && #NULL == 0) [2022-11-22 02:04:30,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((1 <= \old(data) && 8 == unknown-#length-unknown[temp]) && temp == 0) && \old(data) <= 1) && head <= 0) && (((((1 <= data && 0 <= new_head) && 1 <= len) && new_head <= 0) && len <= 1) || ((1 <= data && 0 <= head) && head <= 0))) && ((((((((((\valid[temp] == 1 && len == \old(len)) && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && 19 == unknown-#length-unknown[2]) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) || ((((((((((((((((\valid[temp] == 1 && data == unknown-#memory_int-unknown[new_head][0]) && 2 == unknown-#length-unknown[1]) && !(temp == new_head)) && head == new_head) && unknown-#length-unknown[new_head] == 8) && #memory_$Pointer$[new_head][4 + new_head] == 0) && \valid[1] == 1) && 19 == unknown-#length-unknown[2]) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[new_head] == 1) && unknown-#memory_int-unknown[1][1] == 0) && new_head < unknown-#StackHeapBarrier-unknown) && 0 < unknown-#StackHeapBarrier-unknown) && #memory_$Pointer$[new_head][4 + new_head] == 0))) && 1 <= \old(data)) && data == 1) && data <= 1) && \old(len) <= 2) && len == 2) && temp < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && data == \old(data)) && data <= 1) && 2 <= \old(len)) && 0 <= head) && #NULL == 0 [2022-11-22 02:04:30,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((0 <= s && 1 <= data) && 1 <= \old(data)) && \old(data) <= 1) && i < 2147483647) && head <= 0) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && 0 <= i) && data == 1) && \old(data) <= 1) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && data <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && #NULL == 0 [2022-11-22 02:04:30,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((0 <= s && 1 <= data) && i == 0) && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && data == 1) && \old(data) <= 1) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && data <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && len <= 2) && #NULL == 0) || (((((((((((((((((((((((((((((((((((0 <= s && expected <= 4) && 1 <= data) && 1 <= i) && 1 <= \old(data)) && 0 <= index + 1) && \old(data) <= 1) && head <= 0) && i <= 2) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && \old(index) <= 2) && data == 1) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && 2 <= expected) && index <= 2) && data <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= \old(index)) && head <= 0) && 0 <= head) && len <= 2) && #NULL == 0) [2022-11-22 02:04:30,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((((0 <= index + 1 && 0 <= s) && 1 <= data) && 0 <= head) && 1 <= \old(data)) && 0 <= \old(index)) && \old(data) <= 1) && head <= 0) && len <= 0) && \result <= 0) && 2 <= data) && data <= 4) && 1 <= data) && 1 <= \old(data)) && \old(data) <= 4) && 0 <= i) && new_data <= 4) && data == 1) && head <= 0) && \old(data) <= 1) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && index <= 2) && 2 <= \old(data)) && 0 <= \result) && 2 <= new_data) && data <= 1) && \old(index) <= 2) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && #NULL == 0 [2022-11-22 02:04:30,328 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((0 <= s && expected <= 4) && 1 <= data) && 1 <= i) && 1 <= \old(data)) && 0 <= index + 1) && \old(data) <= 1) && head <= 0) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && \old(index) <= 2) && data == 1) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && 2 <= expected) && index <= 2) && data <= 1) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= \old(index)) && head <= 0) && 0 <= head) && len <= 2) && #NULL == 0) || ((((((((((((((((((((((((((((((((((1 <= data && head == head) && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && len + i == expected) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && data == 1) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && head == s) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && head == s) && \old(index) == index) && 0 <= \result) && 2 <= expected) && data <= 1) && head == head) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && head <= 0) && 0 <= head) && len <= 2) && index == 0) && #NULL == 0) [2022-11-22 02:04:30,328 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((((1 <= data && i == 0) && unknown-#memory_int-unknown[head][head] == \result) && head == head) && \old(index) == i) && \result == aux-sll_get_data_at(s, i)-aux) && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && len + i == expected) && 0 <= aux-sll_get_data_at(s, i)-aux + 2147483648) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && data == 1) && aux-sll_get_data_at(s, i)-aux <= 2147483647) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && head == s) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && head == s) && \old(index) == index) && 0 <= \result) && data <= 1) && head == head) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && head <= 0) && 0 <= head) && len <= 2) && #NULL == 0) || (((((((((((((((((((((((((((((((((((((((index <= 0 && 0 <= s) && expected <= 4) && 1 <= data) && unknown-#memory_int-unknown[head][head] == \result) && 1 <= i) && \result == aux-sll_get_data_at(s, i)-aux) && 1 <= \old(data)) && 0 <= index + 1) && \old(data) <= 1) && head <= 0) && 0 <= aux-sll_get_data_at(s, i)-aux + 2147483648) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && \old(index) <= 2) && data == 1) && aux-sll_get_data_at(s, i)-aux <= 2147483647) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && 2 <= expected) && data <= 1) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= \old(index)) && head <= 0) && 0 <= head) && len <= 2) && #NULL == 0) [2022-11-22 02:04:30,342 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:04:30,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:04:30,343 INFO L158 Benchmark]: Toolchain (without parser) took 59526.08ms. Allocated memory was 163.6MB in the beginning and 413.1MB in the end (delta: 249.6MB). Free memory was 125.0MB in the beginning and 225.3MB in the end (delta: -100.4MB). Peak memory consumption was 151.5MB. Max. memory is 16.1GB. [2022-11-22 02:04:30,343 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:04:30,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.17ms. Allocated memory is still 163.6MB. Free memory was 125.0MB in the beginning and 107.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 02:04:30,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.93ms. Allocated memory is still 163.6MB. Free memory was 107.5MB in the beginning and 105.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:04:30,344 INFO L158 Benchmark]: Boogie Preprocessor took 42.94ms. Allocated memory is still 163.6MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:04:30,344 INFO L158 Benchmark]: RCFGBuilder took 668.39ms. Allocated memory is still 163.6MB. Free memory was 104.0MB in the beginning and 83.7MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 02:04:30,344 INFO L158 Benchmark]: TraceAbstraction took 58124.97ms. Allocated memory was 163.6MB in the beginning and 413.1MB in the end (delta: 249.6MB). Free memory was 83.1MB in the beginning and 229.5MB in the end (delta: -146.5MB). Peak memory consumption was 202.1MB. Max. memory is 16.1GB. [2022-11-22 02:04:30,345 INFO L158 Benchmark]: Witness Printer took 56.03ms. Allocated memory is still 413.1MB. Free memory was 229.5MB in the beginning and 225.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:04:30,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.17ms. Allocated memory is still 163.6MB. Free memory was 125.0MB in the beginning and 107.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.93ms. Allocated memory is still 163.6MB. Free memory was 107.5MB in the beginning and 105.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.94ms. Allocated memory is still 163.6MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 668.39ms. Allocated memory is still 163.6MB. Free memory was 104.0MB in the beginning and 83.7MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 58124.97ms. Allocated memory was 163.6MB in the beginning and 413.1MB in the end (delta: 249.6MB). Free memory was 83.1MB in the beginning and 229.5MB in the end (delta: -146.5MB). Peak memory consumption was 202.1MB. Max. memory is 16.1GB. * Witness Printer took 56.03ms. Allocated memory is still 413.1MB. Free memory was 229.5MB in the beginning and 225.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * 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: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 618]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 618]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 623]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 623]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 602]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 602]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: 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, 40 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 58.0s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 722 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 722 mSDsluCounter, 1025 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 730 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1465 IncrementalHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 295 mSDtfsCounter, 1465 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 678 GetRequests, 425 SyntacticMatches, 65 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1191 ImplicationChecksByTransitivity, 23.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=15, InterpolantAutomatonStates: 123, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 180 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 30 NumberOfFragments, 1206 HoareAnnotationTreeSize, 10 FomulaSimplifications, 737 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 10 FomulaSimplificationsInter, 60176 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 542 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 695 ConstructedInterpolants, 0 QuantifiedInterpolants, 1469 SizeOfPredicates, 28 NumberOfNonLiveVariables, 2032 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 33 InterpolantComputations, 8 PerfectInterpolantSequences, 253/330 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 15.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 112, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 332, TOOLS_POST_TIME: 13.7s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 332, TOOLS_QUANTIFIERELIM_TIME: 13.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.6s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 544, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 50, DOMAIN_JOIN_TIME: 0.6s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 15, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 43, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 112, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 28, LOOP_SUMMARIZER_CACHE_MISSES: 28, LOOP_SUMMARIZER_OVERALL_TIME: 10.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 10.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 43, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 3975, DAG_COMPRESSION_RETAINED_NODES: 379, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((((2 == len && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && 1 <= data) && data == 1) && data <= 1) && \old(len) <= 2) && len == 2) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head) && #NULL == 0) || ((((((((((((((((((((1 <= data && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && 1 <= data) && 1 <= \old(data)) && data == 1) && \old(data) <= 1) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && data <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && 0 <= head) && len <= 2) && #NULL == 0) - InvariantResult [Line: 576]: Loop Invariant [2022-11-22 02:04:30,356 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:04:30,357 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:04:30,358 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:04:30,359 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: (((((((((((((((((1 <= \old(data) && 8 == unknown-#length-unknown[temp]) && temp == 0) && \old(data) <= 1) && head <= 0) && (((((1 <= data && 0 <= new_head) && 1 <= len) && new_head <= 0) && len <= 1) || ((1 <= data && 0 <= head) && head <= 0))) && ((((((((((\valid[temp] == 1 && len == \old(len)) && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && 19 == unknown-#length-unknown[2]) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) || ((((((((((((((((\valid[temp] == 1 && data == unknown-#memory_int-unknown[new_head][0]) && 2 == unknown-#length-unknown[1]) && !(temp == new_head)) && head == new_head) && unknown-#length-unknown[new_head] == 8) && #memory_$Pointer$[new_head][4 + new_head] == 0) && \valid[1] == 1) && 19 == unknown-#length-unknown[2]) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && \valid[new_head] == 1) && unknown-#memory_int-unknown[1][1] == 0) && new_head < unknown-#StackHeapBarrier-unknown) && 0 < unknown-#StackHeapBarrier-unknown) && #memory_$Pointer$[new_head][4 + new_head] == 0))) && 1 <= \old(data)) && data == 1) && data <= 1) && \old(len) <= 2) && len == 2) && temp < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && data == \old(data)) && data <= 1) && 2 <= \old(len)) && 0 <= head) && #NULL == 0 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((0 <= s && 1 <= data) && 1 <= \old(data)) && \old(data) <= 1) && i < 2147483647) && head <= 0) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && 0 <= i) && data == 1) && \old(data) <= 1) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && data <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && #NULL == 0 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((0 <= s && expected <= 4) && 1 <= data) && 1 <= i) && 1 <= \old(data)) && 0 <= index + 1) && \old(data) <= 1) && head <= 0) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && \old(index) <= 2) && data == 1) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && 2 <= expected) && index <= 2) && data <= 1) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= \old(index)) && head <= 0) && 0 <= head) && len <= 2) && #NULL == 0) || ((((((((((((((((((((((((((((((((((1 <= data && head == head) && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && len + i == expected) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && data == 1) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && head == s) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && head == s) && \old(index) == index) && 0 <= \result) && 2 <= expected) && data <= 1) && head == head) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && head <= 0) && 0 <= head) && len <= 2) && index == 0) && #NULL == 0) - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((1 <= data && i == 0) && unknown-#memory_int-unknown[head][head] == \result) && head == head) && \old(index) == i) && \result == aux-sll_get_data_at(s, i)-aux) && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && len + i == expected) && 0 <= aux-sll_get_data_at(s, i)-aux + 2147483648) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && data == 1) && aux-sll_get_data_at(s, i)-aux <= 2147483647) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && head == s) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && head == s) && \old(index) == index) && 0 <= \result) && data <= 1) && head == head) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && head <= 0) && 0 <= head) && len <= 2) && #NULL == 0) || (((((((((((((((((((((((((((((((((((((((index <= 0 && 0 <= s) && expected <= 4) && 1 <= data) && unknown-#memory_int-unknown[head][head] == \result) && 1 <= i) && \result == aux-sll_get_data_at(s, i)-aux) && 1 <= \old(data)) && 0 <= index + 1) && \old(data) <= 1) && head <= 0) && 0 <= aux-sll_get_data_at(s, i)-aux + 2147483648) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && \old(index) <= 2) && data == 1) && aux-sll_get_data_at(s, i)-aux <= 2147483647) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && 2 <= expected) && data <= 1) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= \old(index)) && head <= 0) && 0 <= head) && len <= 2) && #NULL == 0) - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((0 <= index + 1 && 0 <= s) && 1 <= data) && 0 <= head) && 1 <= \old(data)) && 0 <= \old(index)) && \old(data) <= 1) && head <= 0) && len <= 0) && \result <= 0) && 2 <= data) && data <= 4) && 1 <= data) && 1 <= \old(data)) && \old(data) <= 4) && 0 <= i) && new_data <= 4) && data == 1) && head <= 0) && \old(data) <= 1) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && index <= 2) && 2 <= \old(data)) && 0 <= \result) && 2 <= new_data) && data <= 1) && \old(index) <= 2) && i < len) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && #NULL == 0 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((0 <= s && 1 <= data) && i == 0) && 1 <= \old(data)) && \old(data) <= 1) && head <= 0) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && data == 1) && \old(data) <= 1) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && data <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= head) && len <= 2) && #NULL == 0) || (((((((((((((((((((((((((((((((((((0 <= s && expected <= 4) && 1 <= data) && 1 <= i) && 1 <= \old(data)) && 0 <= index + 1) && \old(data) <= 1) && head <= 0) && i <= 2) && len <= 0) && \result <= 0) && 1 <= data) && 1 <= \old(data)) && \old(index) <= 2) && data == 1) && \old(data) <= 1) && 0 <= head) && data <= 1) && 0 <= temp) && \old(len) <= 2) && 0 <= len) && len == 2) && #NULL == 0) && temp <= 0) && 0 <= \result) && 2 <= expected) && index <= 2) && data <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 2 <= \old(len)) && s <= 0) && 0 <= \old(index)) && head <= 0) && 0 <= head) && len <= 2) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-22 02:04:30,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ccd660e-b979-401b-bd74-8de06acce24b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE