./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur --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 f7b1141c3157e34a4974729c197a93a4b99ad75fc020122df5d99d43bcc85e27 --- 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-38b53e6 [2022-11-25 23:47:18,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:47:18,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:47:18,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:47:18,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:47:18,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:47:18,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:47:18,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:47:18,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:47:18,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:47:18,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:47:18,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:47:18,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:47:19,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:47:19,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:47:19,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:47:19,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:47:19,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:47:19,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:47:19,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:47:19,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:47:19,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:47:19,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:47:19,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:47:19,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:47:19,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:47:19,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:47:19,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:47:19,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:47:19,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:47:19,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:47:19,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:47:19,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:47:19,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:47:19,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:47:19,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:47:19,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:47:19,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:47:19,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:47:19,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:47:19,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:47:19,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:47:19,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:47:19,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:47:19,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:47:19,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:47:19,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:47:19,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:47:19,097 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:47:19,097 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:47:19,097 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:47:19,098 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:47:19,099 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:47:19,099 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:47:19,099 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:47:19,099 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:47:19,100 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:47:19,100 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:47:19,100 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:47:19,100 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:47:19,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:47:19,101 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:47:19,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:47:19,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:47:19,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:47:19,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:47:19,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:47:19,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:47:19,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:47:19,103 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:47:19,104 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:47:19,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:47:19,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:47:19,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:47:19,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:47:19,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:47:19,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:47:19,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:47:19,107 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:47:19,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:47:19,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:47:19,108 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:47:19,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:47:19,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:47:19,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:47:19,109 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_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b1141c3157e34a4974729c197a93a4b99ad75fc020122df5d99d43bcc85e27 [2022-11-25 23:47:19,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:47:19,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:47:19,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:47:19,421 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:47:19,422 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:47:19,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2022-11-25 23:47:22,479 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:47:22,808 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:47:22,814 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2022-11-25 23:47:22,828 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/data/1f277e81d/d9ac152edb844a34a13097a312033db4/FLAG5131dfee8 [2022-11-25 23:47:22,850 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/data/1f277e81d/d9ac152edb844a34a13097a312033db4 [2022-11-25 23:47:22,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:47:22,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:47:22,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:22,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:47:22,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:47:22,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:22" (1/1) ... [2022-11-25 23:47:22,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512881cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:22, skipping insertion in model container [2022-11-25 23:47:22,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:22" (1/1) ... [2022-11-25 23:47:22,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:47:22,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:47:23,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:23,280 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:47:23,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:23,393 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:47:23,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23 WrapperNode [2022-11-25 23:47:23,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:23,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:23,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:47:23,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:47:23,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,466 INFO L138 Inliner]: procedures = 126, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2022-11-25 23:47:23,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:23,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:47:23,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:47:23,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:47:23,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,515 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:47:23,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:47:23,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:47:23,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:47:23,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (1/1) ... [2022-11-25 23:47:23,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:47:23,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:23,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:47:23,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:47:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:47:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:47:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:47:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:47:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:47:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:47:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:47:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:47:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:47:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:47:23,809 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:47:23,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:47:24,034 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:47:24,131 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:47:24,131 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:47:24,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:24 BoogieIcfgContainer [2022-11-25 23:47:24,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:47:24,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:47:24,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:47:24,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:47:24,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:47:22" (1/3) ... [2022-11-25 23:47:24,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ab857b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:24, skipping insertion in model container [2022-11-25 23:47:24,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:23" (2/3) ... [2022-11-25 23:47:24,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ab857b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:24, skipping insertion in model container [2022-11-25 23:47:24,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:24" (3/3) ... [2022-11-25 23:47:24,146 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0232_1-2.i [2022-11-25 23:47:24,169 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:47:24,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 23:47:24,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:47:24,237 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;@1719fd23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:47:24,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 23:47:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 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) [2022-11-25 23:47:24,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 23:47:24,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:24,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 23:47:24,252 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:24,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:24,262 INFO L85 PathProgramCache]: Analyzing trace with hash 92449, now seen corresponding path program 1 times [2022-11-25 23:47:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:24,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784525076] [2022-11-25 23:47:24,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:24,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:24,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:24,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:24,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784525076] [2022-11-25 23:47:24,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784525076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:24,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:24,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:24,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763337427] [2022-11-25 23:47:24,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:24,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:24,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:24,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:24,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:24,613 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 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) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:24,749 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-25 23:47:24,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:24,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-25 23:47:24,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:24,761 INFO L225 Difference]: With dead ends: 38 [2022-11-25 23:47:24,761 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 23:47:24,764 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 [2022-11-25 23:47:24,769 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:24,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 51 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:24,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 23:47:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-25 23:47:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.625) internal successors, (26), 23 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) [2022-11-25 23:47:24,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-25 23:47:24,811 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 3 [2022-11-25 23:47:24,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:24,812 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-25 23:47:24,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:24,813 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-25 23:47:24,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:47:24,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:24,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:47:24,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:47:24,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:24,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:24,816 INFO L85 PathProgramCache]: Analyzing trace with hash 88846640, now seen corresponding path program 1 times [2022-11-25 23:47:24,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:24,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226295192] [2022-11-25 23:47:24,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:24,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:25,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:25,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226295192] [2022-11-25 23:47:25,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226295192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:25,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:25,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:25,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120519390] [2022-11-25 23:47:25,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:25,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:25,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:25,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:25,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:25,016 INFO L87 Difference]: Start difference. First operand 24 states and 26 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) [2022-11-25 23:47:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:25,073 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-25 23:47:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:25,074 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 [2022-11-25 23:47:25,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:25,074 INFO L225 Difference]: With dead ends: 28 [2022-11-25 23:47:25,075 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 23:47:25,075 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 [2022-11-25 23:47:25,076 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:25,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 51 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:47:25,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 23:47:25,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-25 23:47:25,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-11-25 23:47:25,081 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 5 [2022-11-25 23:47:25,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:25,082 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-11-25 23:47:25,082 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) [2022-11-25 23:47:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-11-25 23:47:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:47:25,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:25,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:25,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:47:25,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:25,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash 685514444, now seen corresponding path program 1 times [2022-11-25 23:47:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:25,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171625493] [2022-11-25 23:47:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:25,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:25,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:25,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171625493] [2022-11-25 23:47:25,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171625493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:25,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:25,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:25,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338286936] [2022-11-25 23:47:25,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:25,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:25,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:25,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:25,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:25,179 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:25,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:25,210 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-11-25 23:47:25,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:25,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 23:47:25,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:25,211 INFO L225 Difference]: With dead ends: 26 [2022-11-25 23:47:25,211 INFO L226 Difference]: Without dead ends: 25 [2022-11-25 23:47:25,212 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 [2022-11-25 23:47:25,213 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:25,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:47:25,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-25 23:47:25,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-25 23:47:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.5) internal successors, (27), 24 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) [2022-11-25 23:47:25,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-25 23:47:25,218 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2022-11-25 23:47:25,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:25,219 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-25 23:47:25,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:25,219 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-25 23:47:25,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:47:25,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:25,220 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:25,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:47:25,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:25,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:25,221 INFO L85 PathProgramCache]: Analyzing trace with hash 685515406, now seen corresponding path program 1 times [2022-11-25 23:47:25,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:25,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143731150] [2022-11-25 23:47:25,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:25,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:25,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:25,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:25,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143731150] [2022-11-25 23:47:25,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143731150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:25,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726033446] [2022-11-25 23:47:25,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:25,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:25,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:25,399 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:25,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:47:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:25,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:47:25,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:25,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:25,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726033446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:25,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:47:25,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2022-11-25 23:47:25,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361276297] [2022-11-25 23:47:25,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:25,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:47:25,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:25,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:47:25,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:47:25,688 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:25,750 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-11-25 23:47:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:25,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 23:47:25,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:25,752 INFO L225 Difference]: With dead ends: 25 [2022-11-25 23:47:25,752 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 23:47:25,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:47:25,754 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:25,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:47:25,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 23:47:25,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-25 23:47:25,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 23 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) [2022-11-25 23:47:25,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-25 23:47:25,758 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 9 [2022-11-25 23:47:25,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:25,759 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-25 23:47:25,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:25,759 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-25 23:47:25,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:47:25,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:25,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:25,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:25,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:25,964 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:25,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:25,965 INFO L85 PathProgramCache]: Analyzing trace with hash -223888646, now seen corresponding path program 1 times [2022-11-25 23:47:25,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:25,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489294546] [2022-11-25 23:47:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:25,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:26,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:26,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489294546] [2022-11-25 23:47:26,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489294546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:26,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:26,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:47:26,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152619307] [2022-11-25 23:47:26,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:26,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:47:26,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:26,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:47:26,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:47:26,263 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:26,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:26,427 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2022-11-25 23:47:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:47:26,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 23:47:26,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:26,429 INFO L225 Difference]: With dead ends: 42 [2022-11-25 23:47:26,429 INFO L226 Difference]: Without dead ends: 41 [2022-11-25 23:47:26,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:47:26,431 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:26,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 58 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:26,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-25 23:47:26,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 28. [2022-11-25 23:47:26,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:26,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-25 23:47:26,437 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 10 [2022-11-25 23:47:26,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:26,437 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-25 23:47:26,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:26,437 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-25 23:47:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:47:26,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:26,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:26,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:47:26,439 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:26,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:26,439 INFO L85 PathProgramCache]: Analyzing trace with hash -223882464, now seen corresponding path program 1 times [2022-11-25 23:47:26,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:26,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339205465] [2022-11-25 23:47:26,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:26,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:26,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:26,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339205465] [2022-11-25 23:47:26,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339205465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:26,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:26,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:47:26,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871034666] [2022-11-25 23:47:26,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:26,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:47:26,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:26,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:47:26,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:47:26,566 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:26,649 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-25 23:47:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:47:26,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 23:47:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:26,651 INFO L225 Difference]: With dead ends: 41 [2022-11-25 23:47:26,651 INFO L226 Difference]: Without dead ends: 36 [2022-11-25 23:47:26,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:47:26,653 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 16 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:26,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 55 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:26,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-25 23:47:26,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-11-25 23:47:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:26,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-25 23:47:26,658 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 10 [2022-11-25 23:47:26,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:26,659 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-25 23:47:26,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:26,659 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-25 23:47:26,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:47:26,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:26,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:26,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:47:26,660 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:26,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:26,661 INFO L85 PathProgramCache]: Analyzing trace with hash -223858854, now seen corresponding path program 1 times [2022-11-25 23:47:26,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:26,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827033573] [2022-11-25 23:47:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:26,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:26,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:26,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:26,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827033573] [2022-11-25 23:47:26,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827033573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:26,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:26,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:47:26,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060330038] [2022-11-25 23:47:26,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:26,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:47:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:26,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:47:26,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:47:26,735 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:26,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:26,780 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-25 23:47:26,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:26,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 23:47:26,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:26,781 INFO L225 Difference]: With dead ends: 28 [2022-11-25 23:47:26,781 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 23:47:26,781 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 [2022-11-25 23:47:26,782 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:26,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 43 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:47:26,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 23:47:26,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-25 23:47:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 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) [2022-11-25 23:47:26,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-25 23:47:26,787 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2022-11-25 23:47:26,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:26,787 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-25 23:47:26,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:26,787 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-25 23:47:26,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:47:26,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:26,788 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-25 23:47:26,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:47:26,788 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:26,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:26,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1650312029, now seen corresponding path program 1 times [2022-11-25 23:47:26,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:26,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791901213] [2022-11-25 23:47:26,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:26,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:26,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:26,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:26,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791901213] [2022-11-25 23:47:26,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791901213] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:26,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652169264] [2022-11-25 23:47:26,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:26,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:26,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:26,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:27,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:47:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:27,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:47:27,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:27,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:27,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:27,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652169264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:27,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:47:27,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2022-11-25 23:47:27,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321280429] [2022-11-25 23:47:27,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:27,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:47:27,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:27,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:47:27,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:47:27,211 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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) [2022-11-25 23:47:27,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:27,273 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-25 23:47:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:47:27,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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 [2022-11-25 23:47:27,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:27,276 INFO L225 Difference]: With dead ends: 28 [2022-11-25 23:47:27,276 INFO L226 Difference]: Without dead ends: 27 [2022-11-25 23:47:27,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:47:27,281 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:27,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:47:27,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-25 23:47:27,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-11-25 23:47:27,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 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) [2022-11-25 23:47:27,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-25 23:47:27,288 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 11 [2022-11-25 23:47:27,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:27,289 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-25 23:47:27,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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) [2022-11-25 23:47:27,289 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-25 23:47:27,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:47:27,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:27,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:27,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:27,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:27,498 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:27,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:27,499 INFO L85 PathProgramCache]: Analyzing trace with hash -408621412, now seen corresponding path program 1 times [2022-11-25 23:47:27,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:27,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546329982] [2022-11-25 23:47:27,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:27,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:27,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:27,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546329982] [2022-11-25 23:47:27,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546329982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:27,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:27,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:27,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208569089] [2022-11-25 23:47:27,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:27,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:27,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:27,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:27,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:27,608 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:27,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:27,638 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-25 23:47:27,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:27,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-25 23:47:27,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:27,642 INFO L225 Difference]: With dead ends: 26 [2022-11-25 23:47:27,643 INFO L226 Difference]: Without dead ends: 25 [2022-11-25 23:47:27,643 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 [2022-11-25 23:47:27,646 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:27,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:47:27,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-25 23:47:27,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-25 23:47:27,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:27,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-25 23:47:27,660 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 12 [2022-11-25 23:47:27,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:27,660 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-25 23:47:27,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:27,661 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-25 23:47:27,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:47:27,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:27,662 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2022-11-25 23:47:27,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:47:27,663 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:27,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:27,663 INFO L85 PathProgramCache]: Analyzing trace with hash -379934600, now seen corresponding path program 1 times [2022-11-25 23:47:27,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:27,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166586872] [2022-11-25 23:47:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:27,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:27,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166586872] [2022-11-25 23:47:27,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166586872] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:27,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178712308] [2022-11-25 23:47:27,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:27,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:27,856 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:27,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:47:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:28,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:47:28,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:28,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:47:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:28,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178712308] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:47:28,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1154316578] [2022-11-25 23:47:28,155 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-25 23:47:28,155 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:47:28,160 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:47:28,166 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:47:28,166 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:47:28,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,273 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:28,274 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 23:47:28,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,294 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 [2022-11-25 23:47:28,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,458 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:47:28,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 41 [2022-11-25 23:47:28,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,557 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-25 23:47:28,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 184 treesize of output 217 [2022-11-25 23:47:28,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,731 INFO L321 Elim1Store]: treesize reduction 144, result has 7.1 percent of original size [2022-11-25 23:47:28,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 186 treesize of output 218 [2022-11-25 23:47:28,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:28,934 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-11-25 23:47:28,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 222 [2022-11-25 23:47:29,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:29,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:29,111 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-11-25 23:47:29,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 222 [2022-11-25 23:47:29,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:29,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:29,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:29,294 INFO L321 Elim1Store]: treesize reduction 140, result has 18.1 percent of original size [2022-11-25 23:47:29,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 59 [2022-11-25 23:47:29,561 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:47:29,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 193 [2022-11-25 23:47:29,728 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:47:29,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 198 [2022-11-25 23:47:29,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:29,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:29,936 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:47:29,936 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 212 treesize of output 221 [2022-11-25 23:47:29,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:30,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:30,119 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:47:30,119 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 219 treesize of output 228 [2022-11-25 23:47:30,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:30,744 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:47:30,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:30,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:47:31,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 7 [2022-11-25 23:47:34,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:34,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:34,540 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:47:34,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:47:43,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:43,187 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:47:43,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:47:43,239 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:47:43,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 193 [2022-11-25 23:47:43,371 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:47:43,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 203 [2022-11-25 23:47:43,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:43,522 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:47:43,522 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 212 treesize of output 221 [2022-11-25 23:47:43,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:43,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:43,663 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:47:43,663 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 219 treesize of output 228 [2022-11-25 23:47:43,980 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:47:43,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:47:44,019 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:47:44,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:47:44,057 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:47:44,073 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:47:44,104 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:47:44,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:47:44,134 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:47:44,235 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:47:44,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:47:44,259 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:47:44,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:47:44,311 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:47:44,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:47:47,489 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:47:51,050 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '797#(and (or (and (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) |ULTIMATE.start_append_~plist#1.base|) (= (select |#length| |ULTIMATE.start_append_~item~0#1.base|) 8) (= (select |#valid| |ULTIMATE.start_append_~item~0#1.base|) 1) (= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4) |ULTIMATE.start_append_~plist#1.offset|) (= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) 4) |ULTIMATE.start_append_~plist#1.offset|) (= |ULTIMATE.start_append_~plist#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)))) (and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) 0)) (= (select |#length| |ULTIMATE.start_append_~item~0#1.base|) 8) (< (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) |#StackHeapBarrier|) (= (select |#valid| |ULTIMATE.start_append_~item~0#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4))) 1) (= (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4))) 8) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) |ULTIMATE.start_append_~item~0#1.base|))) (and (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0))) (= (select |#length| |ULTIMATE.start_append_~item~0#1.base|) 8) (= (select |#valid| |ULTIMATE.start_append_~item~0#1.base|) 1) (or (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) |ULTIMATE.start_append_~plist#1.base|)) (not (= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4) |ULTIMATE.start_append_~plist#1.offset|))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4))))) (<= ~c~0 2147483647) (= |ULTIMATE.start_main_~#list~0#1.offset| 0) (= |ULTIMATE.start_main_~#list~0#1.base| |ULTIMATE.start_append_#in~plist#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~plist#1.base|) |ULTIMATE.start_append_~plist#1.offset|) |ULTIMATE.start_append_~item~0#1.base|) (= |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_#t~post12#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~plist#1.base|) |ULTIMATE.start_append_~plist#1.offset|) |ULTIMATE.start_append_~item~0#1.offset|) (< 2147483646 |ULTIMATE.start_main_#t~post12#1|) (< |ULTIMATE.start_append_~item~0#1.base| |#StackHeapBarrier|) (<= |#NULL.offset| 0) (<= 1 ~c~0) (= |ULTIMATE.start_append_#in~plist#1.base| |ULTIMATE.start_append_~plist#1.base|) (<= 0 |ULTIMATE.start_main_~#list~0#1.base|) (= |ULTIMATE.start_append_#in~plist#1.offset| |ULTIMATE.start_main_~#list~0#1.offset|) (= |ULTIMATE.start_append_~item~0#1.offset| 0) (not (= |ULTIMATE.start_append_~item~0#1.base| 0)) (= |ULTIMATE.start_append_#in~plist#1.offset| |ULTIMATE.start_append_~plist#1.offset|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 23:47:51,050 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:47:51,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:47:51,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-25 23:47:51,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414837383] [2022-11-25 23:47:51,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:47:51,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:47:51,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:51,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:47:51,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:47:51,053 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2022-11-25 23:47:51,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:51,234 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-11-25 23:47:51,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:47:51,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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 12 [2022-11-25 23:47:51,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:51,235 INFO L225 Difference]: With dead ends: 56 [2022-11-25 23:47:51,235 INFO L226 Difference]: Without dead ends: 50 [2022-11-25 23:47:51,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:47:51,237 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:51,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 83 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:51,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-25 23:47:51,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2022-11-25 23:47:51,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 41 states have internal predecessors, (46), 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) [2022-11-25 23:47:51,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-25 23:47:51,244 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 12 [2022-11-25 23:47:51,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:51,245 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-25 23:47:51,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2022-11-25 23:47:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-25 23:47:51,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:47:51,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:51,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:51,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:51,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 23:47:51,447 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:51,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:51,447 INFO L85 PathProgramCache]: Analyzing trace with hash 217638201, now seen corresponding path program 1 times [2022-11-25 23:47:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:51,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455902043] [2022-11-25 23:47:51,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:51,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:51,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:51,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455902043] [2022-11-25 23:47:51,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455902043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:51,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:51,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:47:51,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826209293] [2022-11-25 23:47:51,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:51,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:47:51,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:51,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:47:51,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:47:51,603 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) [2022-11-25 23:47:51,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:51,697 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2022-11-25 23:47:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:47:51,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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 13 [2022-11-25 23:47:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:51,698 INFO L225 Difference]: With dead ends: 47 [2022-11-25 23:47:51,698 INFO L226 Difference]: Without dead ends: 39 [2022-11-25 23:47:51,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:47:51,699 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:51,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-25 23:47:51,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-25 23:47:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 38 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) [2022-11-25 23:47:51,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-11-25 23:47:51,704 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 13 [2022-11-25 23:47:51,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:51,705 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-11-25 23:47:51,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) [2022-11-25 23:47:51,705 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-11-25 23:47:51,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:47:51,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:51,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 23:47:51,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:47:51,707 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:47:51,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:51,707 INFO L85 PathProgramCache]: Analyzing trace with hash -186974995, now seen corresponding path program 1 times [2022-11-25 23:47:51,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:51,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006929674] [2022-11-25 23:47:51,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:51,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:51,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:51,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006929674] [2022-11-25 23:47:51,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006929674] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:47:51,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768319815] [2022-11-25 23:47:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:51,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:51,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:51,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:51,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:47:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:52,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:47:52,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:52,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:52,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:47:52,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:52,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768319815] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:47:52,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [892571752] [2022-11-25 23:47:52,199 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-25 23:47:52,199 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:47:52,200 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:47:52,200 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:47:52,201 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:47:52,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,235 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:47:52,236 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 23:47:52,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,248 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 [2022-11-25 23:47:52,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,324 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:47:52,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 41 [2022-11-25 23:47:52,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,399 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-25 23:47:52,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 184 treesize of output 212 [2022-11-25 23:47:52,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,545 INFO L321 Elim1Store]: treesize reduction 144, result has 7.1 percent of original size [2022-11-25 23:47:52,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 186 treesize of output 218 [2022-11-25 23:47:52,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,669 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-11-25 23:47:52,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 199 [2022-11-25 23:47:52,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,787 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-11-25 23:47:52,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 245 [2022-11-25 23:47:52,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,885 INFO L321 Elim1Store]: treesize reduction 140, result has 18.1 percent of original size [2022-11-25 23:47:52,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 59 [2022-11-25 23:47:52,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:52,939 INFO L321 Elim1Store]: treesize reduction 48, result has 18.6 percent of original size [2022-11-25 23:47:52,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 28 [2022-11-25 23:47:53,163 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:47:53,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 175 treesize of output 207 [2022-11-25 23:47:53,217 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:47:53,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-25 23:47:53,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:53,349 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:47:53,350 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 212 treesize of output 221 [2022-11-25 23:47:53,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:47:53,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:47:53,476 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:47:53,476 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 219 treesize of output 228 [2022-11-25 23:48:06,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 7 [2022-11-25 23:48:06,666 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:06,701 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 42 treesize of output 7 [2022-11-25 23:48:06,718 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:06,843 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:06,884 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:06,935 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:06,962 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,024 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,086 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,124 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,187 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,224 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,250 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,297 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,352 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,396 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,431 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,490 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,562 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,592 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,657 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,686 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,754 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,787 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,835 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,912 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:07,948 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,016 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,052 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,115 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,142 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,171 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,254 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,281 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,299 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,367 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,392 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,420 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,490 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,517 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,560 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,594 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,685 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,714 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,759 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,827 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,860 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,896 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,965 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:08,988 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:09,044 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:09,085 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:09,126 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:10,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 treesize of output 3 [2022-11-25 23:48:10,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-25 23:48:29,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:29,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:29,518 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:48:29,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:48:33,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:33,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:33,736 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:48:33,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:48:33,871 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:48:33,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 175 treesize of output 212 [2022-11-25 23:48:33,938 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:48:33,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-25 23:48:33,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:33,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:34,125 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:48:34,125 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 212 treesize of output 221 [2022-11-25 23:48:34,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:34,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:34,267 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:48:34,267 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 219 treesize of output 228 [2022-11-25 23:48:34,804 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:48:34,838 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:48:34,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:48:34,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:48:34,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:34,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:34,897 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:48:34,931 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:48:34,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:48:34,962 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:48:34,993 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:48:35,025 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:48:35,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:35,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:35,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:48:35,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:35,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:35,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:48:35,177 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,205 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 treesize of output 3 [2022-11-25 23:48:35,301 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,333 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,360 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,391 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,422 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,449 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,473 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,501 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,526 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:35,569 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:38,237 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 [2022-11-25 23:48:38,307 INFO L321 Elim1Store]: treesize reduction 64, result has 53.3 percent of original size [2022-11-25 23:48:38,307 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 69 treesize of output 106 [2022-11-25 23:48:38,346 INFO L321 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2022-11-25 23:48:38,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 95 treesize of output 85 [2022-11-25 23:48:38,370 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:48:38,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:48:38,669 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:39,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [892571752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:39,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:48:39,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6, 6] total 20 [2022-11-25 23:48:39,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359387896] [2022-11-25 23:48:39,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:39,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:48:39,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:39,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:48:39,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2022-11-25 23:48:39,591 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2022-11-25 23:48:39,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:39,702 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-11-25 23:48:39,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:48:39,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 16 [2022-11-25 23:48:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:39,703 INFO L225 Difference]: With dead ends: 43 [2022-11-25 23:48:39,703 INFO L226 Difference]: Without dead ends: 42 [2022-11-25 23:48:39,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2022-11-25 23:48:39,704 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:39,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:48:39,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-25 23:48:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2022-11-25 23:48:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 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) [2022-11-25 23:48:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-11-25 23:48:39,709 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 16 [2022-11-25 23:48:39,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:39,710 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-11-25 23:48:39,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2022-11-25 23:48:39,710 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-11-25 23:48:39,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 23:48:39,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:39,711 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:39,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-25 23:48:39,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:39,915 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:48:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:39,915 INFO L85 PathProgramCache]: Analyzing trace with hash 400587366, now seen corresponding path program 1 times [2022-11-25 23:48:39,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:39,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999921136] [2022-11-25 23:48:39,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:39,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:40,095 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:40,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:40,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999921136] [2022-11-25 23:48:40,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999921136] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:40,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750201788] [2022-11-25 23:48:40,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:40,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:40,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:40,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:40,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:48:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:40,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 23:48:40,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:40,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:40,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750201788] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:40,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [119159999] [2022-11-25 23:48:40,446 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-25 23:48:40,447 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:40,447 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:40,447 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:40,447 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:40,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,479 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:48:40,480 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 23:48:40,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,491 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 [2022-11-25 23:48:40,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,546 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:48:40,546 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 1 case distinctions, treesize of input 37 treesize of output 32 [2022-11-25 23:48:40,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,556 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 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-25 23:48:40,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,757 INFO L321 Elim1Store]: treesize reduction 212, result has 12.0 percent of original size [2022-11-25 23:48:40,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 195 treesize of output 240 [2022-11-25 23:48:40,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,840 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-25 23:48:40,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 176 treesize of output 204 [2022-11-25 23:48:40,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:40,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,018 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-11-25 23:48:41,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 222 [2022-11-25 23:48:41,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,127 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-11-25 23:48:41,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 222 [2022-11-25 23:48:41,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,218 INFO L321 Elim1Store]: treesize reduction 48, result has 39.2 percent of original size [2022-11-25 23:48:41,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 48 [2022-11-25 23:48:41,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,478 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:48:41,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 41 [2022-11-25 23:48:41,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:41,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,020 INFO L321 Elim1Store]: treesize reduction 498, result has 14.3 percent of original size [2022-11-25 23:48:42,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 278 treesize of output 356 [2022-11-25 23:48:42,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,179 INFO L321 Elim1Store]: treesize reduction 158, result has 3.1 percent of original size [2022-11-25 23:48:42,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 196 treesize of output 230 [2022-11-25 23:48:42,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,274 INFO L321 Elim1Store]: treesize reduction 158, result has 5.4 percent of original size [2022-11-25 23:48:42,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 241 treesize of output 208 [2022-11-25 23:48:42,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:42,388 INFO L321 Elim1Store]: treesize reduction 207, result has 10.4 percent of original size [2022-11-25 23:48:42,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 432 treesize of output 302 [2022-11-25 23:48:42,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:42,647 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:48:42,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:48:42,697 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:48:42,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 188 [2022-11-25 23:48:42,858 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:48:42,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 198 [2022-11-25 23:48:42,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:42,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:43,000 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:48:43,000 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 212 treesize of output 221 [2022-11-25 23:48:43,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:43,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:43,145 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:48:43,146 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 219 treesize of output 228 [2022-11-25 23:48:47,168 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 treesize of output 3 [2022-11-25 23:48:47,237 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,292 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,307 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,339 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,395 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,419 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,450 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,503 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,524 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,560 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,591 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,618 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,664 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:47,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 7 [2022-11-25 23:48:50,009 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:48:50,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 188 [2022-11-25 23:48:50,124 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:48:50,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 198 [2022-11-25 23:48:50,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:50,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:50,305 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:48:50,305 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 212 treesize of output 221 [2022-11-25 23:48:50,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:50,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:50,457 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:48:50,458 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 219 treesize of output 228 [2022-11-25 23:48:52,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 7 [2022-11-25 23:48:52,866 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:52,972 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:52,994 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:53,026 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:53,072 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:53,133 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:53,163 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:53,193 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:53,220 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:48:53,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 treesize of output 3 [2022-11-25 23:48:54,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:54,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:54,733 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:48:54,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:48:54,986 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 [2022-11-25 23:48:55,052 INFO L321 Elim1Store]: treesize reduction 64, result has 53.3 percent of original size [2022-11-25 23:48:55,052 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 69 treesize of output 106 [2022-11-25 23:48:55,085 INFO L321 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2022-11-25 23:48:55,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 89 [2022-11-25 23:48:55,108 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:48:55,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-25 23:48:55,283 INFO L321 Elim1Store]: treesize reduction 36, result has 43.8 percent of original size [2022-11-25 23:48:55,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 58 [2022-11-25 23:48:55,315 INFO L321 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2022-11-25 23:48:55,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 56 [2022-11-25 23:48:55,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-25 23:48:55,351 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 [2022-11-25 23:48:55,440 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:56,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [119159999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:56,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:48:56,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7, 6, 6] total 27 [2022-11-25 23:48:56,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640542404] [2022-11-25 23:48:56,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:56,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:48:56,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:56,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:48:56,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-11-25 23:48:56,925 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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) [2022-11-25 23:48:57,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:57,207 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-11-25 23:48:57,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:48:57,207 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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 19 [2022-11-25 23:48:57,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:57,208 INFO L225 Difference]: With dead ends: 38 [2022-11-25 23:48:57,208 INFO L226 Difference]: Without dead ends: 31 [2022-11-25 23:48:57,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2022-11-25 23:48:57,209 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:57,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:48:57,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-25 23:48:57,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-25 23:48:57,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:57,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2022-11-25 23:48:57,215 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 19 [2022-11-25 23:48:57,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:57,215 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2022-11-25 23:48:57,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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) [2022-11-25 23:48:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-11-25 23:48:57,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 23:48:57,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:57,217 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1] [2022-11-25 23:48:57,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:57,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:57,423 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:48:57,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:57,424 INFO L85 PathProgramCache]: Analyzing trace with hash 374355281, now seen corresponding path program 2 times [2022-11-25 23:48:57,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:57,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788754531] [2022-11-25 23:48:57,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:57,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:57,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:57,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788754531] [2022-11-25 23:48:57,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788754531] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:48:57,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953286003] [2022-11-25 23:48:57,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:48:57,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:57,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:57,845 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:57,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:48:59,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-25 23:48:59,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:48:59,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 23:48:59,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:59,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:59,688 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:59,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953286003] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:59,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [180034027] [2022-11-25 23:48:59,690 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-25 23:48:59,690 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:59,690 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:59,691 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:59,691 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:59,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:59,727 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:48:59,727 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 23:48:59,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:59,739 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 [2022-11-25 23:48:59,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:59,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:59,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:59,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:59,806 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:48:59,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 41 [2022-11-25 23:48:59,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:59,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,068 INFO L321 Elim1Store]: treesize reduction 212, result has 12.0 percent of original size [2022-11-25 23:49:00,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 195 treesize of output 235 [2022-11-25 23:49:00,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,164 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-25 23:49:00,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 176 treesize of output 204 [2022-11-25 23:49:00,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,298 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-11-25 23:49:00,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 222 [2022-11-25 23:49:00,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,402 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-11-25 23:49:00,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 244 treesize of output 222 [2022-11-25 23:49:00,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,488 INFO L321 Elim1Store]: treesize reduction 48, result has 39.2 percent of original size [2022-11-25 23:49:00,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 48 [2022-11-25 23:49:00,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:00,542 INFO L321 Elim1Store]: treesize reduction 76, result has 29.0 percent of original size [2022-11-25 23:49:00,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 59 [2022-11-25 23:49:01,450 INFO L321 Elim1Store]: treesize reduction 583, result has 10.3 percent of original size [2022-11-25 23:49:01,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 576 treesize of output 622 [2022-11-25 23:49:01,587 INFO L217 Elim1Store]: Index analysis took 108 ms [2022-11-25 23:49:02,829 INFO L321 Elim1Store]: treesize reduction 736, result has 14.6 percent of original size [2022-11-25 23:49:02,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 38 case distinctions, treesize of input 557 treesize of output 659 [2022-11-25 23:49:02,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:02,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:03,412 INFO L321 Elim1Store]: treesize reduction 469, result has 14.7 percent of original size [2022-11-25 23:49:03,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 709 treesize of output 537 [2022-11-25 23:49:03,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:03,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:03,668 INFO L321 Elim1Store]: treesize reduction 254, result has 16.2 percent of original size [2022-11-25 23:49:03,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 706 treesize of output 640 [2022-11-25 23:49:03,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:03,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:03,775 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-25 23:49:03,775 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 1 case distinctions, treesize of input 398 treesize of output 381 [2022-11-25 23:49:03,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:03,835 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-25 23:49:03,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 391 treesize of output 374 [2022-11-25 23:49:04,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:04,903 INFO L321 Elim1Store]: treesize reduction 356, result has 13.0 percent of original size [2022-11-25 23:49:04,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 576 treesize of output 582 [2022-11-25 23:49:08,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:08,881 INFO L321 Elim1Store]: treesize reduction 474, result has 15.5 percent of original size [2022-11-25 23:49:08,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 526 treesize of output 510 [2022-11-25 23:49:17,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:17,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:17,332 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:49:17,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:49:17,445 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:49:17,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 175 treesize of output 207 [2022-11-25 23:49:17,500 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:49:17,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-25 23:49:17,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:17,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:17,620 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:49:17,620 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 212 treesize of output 221 [2022-11-25 23:49:17,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:17,652 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:17,753 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:49:17,754 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 219 treesize of output 228 [2022-11-25 23:49:20,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 7 [2022-11-25 23:49:20,431 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,450 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,474 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,503 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,527 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,563 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,587 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,633 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,663 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,685 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,707 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,733 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,757 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,818 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,842 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:20,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 treesize of output 3 [2022-11-25 23:49:22,344 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:49:22,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 188 [2022-11-25 23:49:22,477 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:49:22,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 198 [2022-11-25 23:49:22,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:22,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:22,653 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:49:22,654 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 212 treesize of output 221 [2022-11-25 23:49:22,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:22,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:22,776 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:49:22,777 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 219 treesize of output 228 [2022-11-25 23:49:25,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 treesize of output 3 [2022-11-25 23:49:25,966 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,015 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,030 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,133 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,171 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,205 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,243 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,263 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,302 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,387 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,429 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,463 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:26,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 7 [2022-11-25 23:49:31,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:31,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:31,158 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:49:31,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:49:32,117 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:49:32,889 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1655#(and (<= 0 |ULTIMATE.start_main_~#list~0#1.offset|) (<= ~c~0 2147483647) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_append_#in~plist#1.base|) (< 2147483646 |ULTIMATE.start_main_#t~post12#1|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_append_~item~0#1.offset|) (<= 1 ~c~0) (<= 0 |ULTIMATE.start_main_~#list~0#1.base|) (<= 0 |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_append_~plist#1.base|) (<= |ULTIMATE.start_append_~item~0#1.offset| 0) (<= |ULTIMATE.start_main_~#list~0#1.offset| 0) (<= |ULTIMATE.start_append_#in~plist#1.offset| 0) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_append_~plist#1.offset|) (<= 0 |ULTIMATE.start_append_#in~plist#1.offset|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_append_~plist#1.offset| 0) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-25 23:49:32,890 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:49:32,890 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:49:32,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2022-11-25 23:49:32,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818030197] [2022-11-25 23:49:32,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:49:32,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 23:49:32,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:32,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 23:49:32,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2022-11-25 23:49:32,893 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 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) [2022-11-25 23:49:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:33,310 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2022-11-25 23:49:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 23:49:33,311 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 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 30 [2022-11-25 23:49:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:33,311 INFO L225 Difference]: With dead ends: 68 [2022-11-25 23:49:33,311 INFO L226 Difference]: Without dead ends: 67 [2022-11-25 23:49:33,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 61 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-11-25 23:49:33,313 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 41 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:33,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 50 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:49:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-25 23:49:33,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-25 23:49:33,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.0151515151515151) internal successors, (67), 66 states have internal predecessors, (67), 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) [2022-11-25 23:49:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2022-11-25 23:49:33,324 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 30 [2022-11-25 23:49:33,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:33,324 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2022-11-25 23:49:33,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 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) [2022-11-25 23:49:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2022-11-25 23:49:33,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 23:49:33,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:33,327 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1] [2022-11-25 23:49:33,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:49:33,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 23:49:33,538 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:49:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1514762819, now seen corresponding path program 3 times [2022-11-25 23:49:33,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:33,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516009293] [2022-11-25 23:49:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:33,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:49:34,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:34,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516009293] [2022-11-25 23:49:34,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516009293] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:49:34,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681431785] [2022-11-25 23:49:34,735 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 23:49:34,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:49:34,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:49:34,738 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:49:34,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:49:35,192 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 23:49:35,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:49:35,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 23:49:35,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:49:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:49:35,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:49:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:49:35,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681431785] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:49:35,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [404519592] [2022-11-25 23:49:35,976 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-25 23:49:35,976 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:49:35,976 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:49:35,977 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:49:35,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:49:35,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,007 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:49:36,007 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-25 23:49:36,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,018 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 [2022-11-25 23:49:36,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,125 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-25 23:49:36,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 184 treesize of output 217 [2022-11-25 23:49:36,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,270 INFO L321 Elim1Store]: treesize reduction 144, result has 7.1 percent of original size [2022-11-25 23:49:36,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 186 treesize of output 223 [2022-11-25 23:49:36,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,397 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-11-25 23:49:36,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 199 [2022-11-25 23:49:36,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,533 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-11-25 23:49:36,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 221 [2022-11-25 23:49:36,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,617 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:49:36,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 41 [2022-11-25 23:49:36,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:36,752 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:49:36,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:49:36,804 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:49:36,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 193 [2022-11-25 23:49:36,927 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:49:36,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 203 [2022-11-25 23:49:36,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:36,955 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:37,072 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:49:37,072 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 212 treesize of output 221 [2022-11-25 23:49:37,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:37,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:37,190 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:49:37,191 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 219 treesize of output 228 [2022-11-25 23:49:38,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:38,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:38,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:38,096 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:49:38,131 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:49:38,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:38,161 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:38,181 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:38,214 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:38,234 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:38,295 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:49:38,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:38,343 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:49:38,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:38,377 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:38,407 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:38,619 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:49:38,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:38,648 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:49:38,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:38,693 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:49:38,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:38,723 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:38,743 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:38,759 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:40,420 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:49:40,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 193 [2022-11-25 23:49:40,584 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-25 23:49:40,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 203 [2022-11-25 23:49:40,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,723 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:49:40,724 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 212 treesize of output 221 [2022-11-25 23:49:40,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:40,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:40,872 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-25 23:49:40,872 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 219 treesize of output 228 [2022-11-25 23:49:43,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:43,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:49:43,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:43,237 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:43,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:43,266 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:43,286 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:43,310 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:49:43,336 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:43,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:49:43,383 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:43,406 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:43,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:43,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:49:43,468 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,494 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:43,551 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:43,585 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:43,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:43,646 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,673 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:43,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:49:43,735 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:43,762 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:43,794 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,825 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,870 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,893 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,924 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:43,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:43,964 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:44,004 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,037 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,065 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,101 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:44,149 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:44,192 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,224 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,258 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,292 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,333 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,370 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:44,411 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-25 23:49:44,451 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,479 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:44,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:44,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-25 23:49:44,577 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:45,271 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 14 treesize of output 3 [2022-11-25 23:49:45,392 INFO L321 Elim1Store]: treesize reduction 108, result has 27.5 percent of original size [2022-11-25 23:49:45,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 64 treesize of output 110 [2022-11-25 23:49:45,544 INFO L321 Elim1Store]: treesize reduction 36, result has 18.2 percent of original size [2022-11-25 23:49:45,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 22 [2022-11-25 23:49:45,655 INFO L321 Elim1Store]: treesize reduction 108, result has 27.5 percent of original size [2022-11-25 23:49:45,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 64 treesize of output 110 [2022-11-25 23:49:45,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:45,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:45,787 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:49:45,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 14 [2022-11-25 23:49:45,808 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:45,827 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:45,846 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,061 INFO L321 Elim1Store]: treesize reduction 108, result has 27.5 percent of original size [2022-11-25 23:49:46,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 64 treesize of output 110 [2022-11-25 23:49:46,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:46,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:46,176 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-25 23:49:46,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 14 [2022-11-25 23:49:46,199 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,222 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,241 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,368 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 14 treesize of output 3 [2022-11-25 23:49:46,397 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,499 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 14 treesize of output 3 [2022-11-25 23:49:46,522 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,550 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,581 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,624 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,655 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,682 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:46,708 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 14 treesize of output 3 [2022-11-25 23:49:46,739 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:49:48,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:49:48,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:49:48,630 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-25 23:49:48,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-25 23:49:48,693 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-25 23:49:48,739 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-25 23:49:48,881 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-25 23:49:48,948 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:49:50,614 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2275#(and (<= 0 |ULTIMATE.start_main_~#list~0#1.offset|) (<= ~c~0 2147483647) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_append_#in~plist#1.base|) (< 2147483646 |ULTIMATE.start_main_#t~post12#1|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_append_~item~0#1.offset|) (<= 1 ~c~0) (<= 0 |ULTIMATE.start_main_~#list~0#1.base|) (<= 0 |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_append_~plist#1.base|) (<= |ULTIMATE.start_append_~item~0#1.offset| 0) (<= |ULTIMATE.start_main_~#list~0#1.offset| 0) (<= |ULTIMATE.start_append_#in~plist#1.offset| 0) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_append_~plist#1.offset|) (<= 0 |ULTIMATE.start_append_#in~plist#1.offset|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_append_~plist#1.offset| 0) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-25 23:49:50,614 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:49:50,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:49:50,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 46 [2022-11-25 23:49:50,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943435628] [2022-11-25 23:49:50,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 23:49:50,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-25 23:49:50,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:50,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-25 23:49:50,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=614, Invalid=2142, Unknown=0, NotChecked=0, Total=2756 [2022-11-25 23:49:50,618 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand has 48 states, 47 states have (on average 2.9361702127659575) internal successors, (138), 47 states have internal predecessors, (138), 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) [2022-11-25 23:49:51,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:49:51,555 INFO L93 Difference]: Finished difference Result 140 states and 151 transitions. [2022-11-25 23:49:51,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 23:49:51,556 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.9361702127659575) internal successors, (138), 47 states have internal predecessors, (138), 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 66 [2022-11-25 23:49:51,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:49:51,557 INFO L225 Difference]: With dead ends: 140 [2022-11-25 23:49:51,557 INFO L226 Difference]: Without dead ends: 139 [2022-11-25 23:49:51,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 145 SyntacticMatches, 22 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2920 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1397, Invalid=4153, Unknown=0, NotChecked=0, Total=5550 [2022-11-25 23:49:51,560 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 85 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:49:51,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 92 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:49:51,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-25 23:49:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-11-25 23:49:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.0072463768115942) internal successors, (139), 138 states have internal predecessors, (139), 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) [2022-11-25 23:49:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2022-11-25 23:49:51,576 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 66 [2022-11-25 23:49:51,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:49:51,577 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2022-11-25 23:49:51,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.9361702127659575) internal successors, (138), 47 states have internal predecessors, (138), 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) [2022-11-25 23:49:51,577 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2022-11-25 23:49:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-25 23:49:51,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:51,580 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 1, 1] [2022-11-25 23:49:51,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 23:49:51,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 23:49:51,793 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 23:49:51,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:51,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1504167641, now seen corresponding path program 4 times [2022-11-25 23:49:51,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:51,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868238708] [2022-11-25 23:49:51,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:51,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:49:56,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:49:56,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868238708] [2022-11-25 23:49:56,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868238708] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:49:56,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579958495] [2022-11-25 23:49:56,162 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-25 23:49:56,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:49:56,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:49:56,164 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:49:56,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 23:49:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:49:56,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-25 23:49:57,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:49:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 1480 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 23:49:58,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:49:58,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579958495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:49:58,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:49:58,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [46] total 88 [2022-11-25 23:49:58,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225421640] [2022-11-25 23:49:58,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:49:58,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-25 23:49:58,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:49:58,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-25 23:49:58,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=6751, Unknown=0, NotChecked=0, Total=7832 [2022-11-25 23:49:58,642 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand has 43 states, 43 states have (on average 2.9767441860465116) internal successors, (128), 42 states have internal predecessors, (128), 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) [2022-11-25 23:50:00,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:00,838 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2022-11-25 23:50:00,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-25 23:50:00,839 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.9767441860465116) internal successors, (128), 42 states have internal predecessors, (128), 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 138 [2022-11-25 23:50:00,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:00,840 INFO L225 Difference]: With dead ends: 139 [2022-11-25 23:50:00,840 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:50:00,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3029 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1731, Invalid=10041, Unknown=0, NotChecked=0, Total=11772 [2022-11-25 23:50:00,844 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 40 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:00,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 176 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 23:50:00,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:50:00,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:50:00,846 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) [2022-11-25 23:50:00,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:50:00,846 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2022-11-25 23:50:00,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:00,846 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:50:00,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.9767441860465116) internal successors, (128), 42 states have internal predecessors, (128), 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) [2022-11-25 23:50:00,847 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:50:00,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:50:00,849 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-25 23:50:00,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-25 23:50:00,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-25 23:50:00,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-25 23:50:00,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-25 23:50:00,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-25 23:50:00,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-25 23:50:00,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-25 23:50:00,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 23:50:01,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:50:01,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:50:01,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-11-25 23:50:01,897 INFO L899 garLoopResultBuilder]: For program point L543-2(lines 543 546) no Hoare annotation was computed. [2022-11-25 23:50:01,898 INFO L895 garLoopResultBuilder]: At program point L543-4(lines 543 546) the Hoare annotation is: (let ((.cse0 (<= ~c~0 19)) (.cse1 (<= 0 |ULTIMATE.start_append_#in~plist#1.base|)) (.cse2 (= |ULTIMATE.start_main_~#list~0#1.offset| 0)) (.cse3 (<= 0 |ULTIMATE.start_append_~item~0#1.offset|)) (.cse4 (<= 0 |ULTIMATE.start_main_~#list~0#1.base|)) (.cse5 (<= 0 |ULTIMATE.start_append_~plist#1.base|)) (.cse6 (<= |ULTIMATE.start_append_~item~0#1.offset| 0)) (.cse7 (<= |ULTIMATE.start_append_#in~plist#1.offset| 0)) (.cse8 (<= 1 |ULTIMATE.start_main_~length~0#1|)) (.cse9 (<= 0 |ULTIMATE.start_append_~plist#1.offset|)) (.cse10 (= |#NULL.offset| 0)) (.cse11 (<= 0 |ULTIMATE.start_append_#in~plist#1.offset|)) (.cse12 (<= |ULTIMATE.start_append_~plist#1.offset| 0)) (.cse13 (<= 0 |#StackHeapBarrier|)) (.cse14 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 (<= 8 ~c~0) .cse3 (<= |ULTIMATE.start_main_~length~0#1| 8) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 (<= 10 ~c~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (<= |ULTIMATE.start_main_~length~0#1| 10) .cse13 .cse14) (and .cse0 (< |ULTIMATE.start_main_~length~0#1| 2147483639) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= 13 ~c~0) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~length~0#1| 4) .cse4 .cse5 .cse6 (<= 4 ~c~0) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 (< |ULTIMATE.start_main_~length~0#1| 2147483641) (<= 15 ~c~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 (<= 19 ~c~0) .cse3 (< |ULTIMATE.start_main_~length~0#1| 2147483645) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 (<= 18 ~c~0) .cse1 .cse2 .cse3 .cse4 (< |ULTIMATE.start_main_~length~0#1| 2147483644) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~length~0#1| 2) .cse9 .cse10 (<= 2 ~c~0) .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 (<= 17 ~c~0) .cse3 .cse4 .cse5 .cse6 (< |ULTIMATE.start_main_~length~0#1| 2147483643) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse2 (= ~c~0 0) .cse4 .cse10 .cse13 (= |ULTIMATE.start_main_~length~0#1| 0) .cse14) (and .cse0 .cse1 .cse2 (< |ULTIMATE.start_main_~length~0#1| 2147483642) (<= 16 ~c~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 (<= |ULTIMATE.start_main_~length~0#1| 3) .cse1 .cse2 (<= 3 ~c~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 (<= 6 ~c~0) (<= |ULTIMATE.start_main_~length~0#1| 6) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 (<= 5 ~c~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= |ULTIMATE.start_main_~length~0#1| 5) .cse14) (and .cse0 .cse1 .cse2 (<= 14 ~c~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (< |ULTIMATE.start_main_~length~0#1| 2147483640) .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~length~0#1| 9) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= 9 ~c~0) .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 (<= 11 ~c~0) (< |ULTIMATE.start_main_~length~0#1| 2147483637) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 (< |ULTIMATE.start_main_~length~0#1| 2147483638) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (<= 12 ~c~0) .cse13 .cse14) (and .cse0 (<= |ULTIMATE.start_main_~length~0#1| 1) .cse1 .cse2 .cse3 (<= 1 ~c~0) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~length~0#1| 7) .cse9 .cse10 .cse11 (<= 7 ~c~0) .cse12 .cse13 .cse14))) [2022-11-25 23:50:01,898 INFO L899 garLoopResultBuilder]: For program point L543-5(lines 540 561) no Hoare annotation was computed. [2022-11-25 23:50:01,898 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-11-25 23:50:01,898 INFO L899 garLoopResultBuilder]: For program point L531-1(line 531) no Hoare annotation was computed. [2022-11-25 23:50:01,898 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-11-25 23:50:01,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-25 23:50:01,898 INFO L899 garLoopResultBuilder]: For program point L552-1(line 552) no Hoare annotation was computed. [2022-11-25 23:50:01,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 531) no Hoare annotation was computed. [2022-11-25 23:50:01,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:50:01,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-25 23:50:01,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 531) no Hoare annotation was computed. [2022-11-25 23:50:01,899 INFO L899 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2022-11-25 23:50:01,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:50:01,899 INFO L899 garLoopResultBuilder]: For program point L545-1(line 545) no Hoare annotation was computed. [2022-11-25 23:50:01,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-25 23:50:01,899 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-11-25 23:50:01,899 INFO L899 garLoopResultBuilder]: For program point L558-1(line 558) no Hoare annotation was computed. [2022-11-25 23:50:01,899 INFO L895 garLoopResultBuilder]: At program point L554-1(lines 540 561) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_~length~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~#list~0#1.offset|) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_append_#in~plist#1.base|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_append_~item~0#1.offset|) (<= 1 ~c~0) (<= 0 |ULTIMATE.start_main_~#list~0#1.base|) (<= 0 |ULTIMATE.start_append_~plist#1.base|) (<= |ULTIMATE.start_append_~item~0#1.offset| 0) (<= |ULTIMATE.start_main_~#list~0#1.offset| 0) (<= |ULTIMATE.start_append_#in~plist#1.offset| 0) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_append_~plist#1.offset|) (<= 0 |ULTIMATE.start_append_#in~plist#1.offset|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_append_~plist#1.offset| 0) (<= 0 |#StackHeapBarrier|)) (and (<= 0 (+ ~c~0 2147483648)) (<= |ULTIMATE.start_main_~length~0#1| 0))) [2022-11-25 23:50:01,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 545) no Hoare annotation was computed. [2022-11-25 23:50:01,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 558) no Hoare annotation was computed. [2022-11-25 23:50:01,903 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:50:01,906 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:50:01,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:50:01 BoogieIcfgContainer [2022-11-25 23:50:01,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:50:01,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:50:01,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:50:01,938 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:50:01,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:24" (3/4) ... [2022-11-25 23:50:01,943 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:50:01,955 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-25 23:50:01,955 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-25 23:50:01,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 23:50:01,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:50:02,009 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:50:02,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:50:02,009 INFO L158 Benchmark]: Toolchain (without parser) took 159153.82ms. Allocated memory was 180.4MB in the beginning and 1.1GB in the end (delta: 952.1MB). Free memory was 145.7MB in the beginning and 985.0MB in the end (delta: -839.4MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. [2022-11-25 23:50:02,010 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:50:02,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.50ms. Allocated memory is still 180.4MB. Free memory was 145.7MB in the beginning and 128.5MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:50:02,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.37ms. Allocated memory is still 180.4MB. Free memory was 128.5MB in the beginning and 126.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:50:02,010 INFO L158 Benchmark]: Boogie Preprocessor took 60.69ms. Allocated memory is still 180.4MB. Free memory was 126.4MB in the beginning and 124.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:50:02,010 INFO L158 Benchmark]: RCFGBuilder took 607.42ms. Allocated memory is still 180.4MB. Free memory was 124.8MB in the beginning and 105.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 23:50:02,011 INFO L158 Benchmark]: TraceAbstraction took 157798.50ms. Allocated memory was 180.4MB in the beginning and 1.1GB in the end (delta: 952.1MB). Free memory was 104.4MB in the beginning and 988.2MB in the end (delta: -883.8MB). Peak memory consumption was 648.7MB. Max. memory is 16.1GB. [2022-11-25 23:50:02,011 INFO L158 Benchmark]: Witness Printer took 71.10ms. Allocated memory is still 1.1GB. Free memory was 988.2MB in the beginning and 985.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:50:02,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.50ms. Allocated memory is still 180.4MB. Free memory was 145.7MB in the beginning and 128.5MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.37ms. Allocated memory is still 180.4MB. Free memory was 128.5MB in the beginning and 126.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.69ms. Allocated memory is still 180.4MB. Free memory was 126.4MB in the beginning and 124.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 607.42ms. Allocated memory is still 180.4MB. Free memory was 124.8MB in the beginning and 105.0MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 157798.50ms. Allocated memory was 180.4MB in the beginning and 1.1GB in the end (delta: 952.1MB). Free memory was 104.4MB in the beginning and 988.2MB in the end (delta: -883.8MB). Peak memory consumption was 648.7MB. Max. memory is 16.1GB. * Witness Printer took 71.10ms. Allocated memory is still 1.1GB. Free memory was 988.2MB in the beginning and 985.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 531]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 531]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: 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, 22 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 157.7s, OverallIterations: 16, TraceHistogramMax: 23, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 287 mSDsluCounter, 825 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 636 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1472 IncrementalHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 189 mSDtfsCounter, 1472 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 772 GetRequests, 399 SyntacticMatches, 46 SemanticMatches, 327 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7375 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=15, InterpolantAutomatonStates: 185, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 34 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 24 NumberOfFragments, 1076 HoareAnnotationTreeSize, 2 FomulaSimplifications, 1479 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 2 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 788 ConstructedInterpolants, 0 QuantifiedInterpolants, 2268 SizeOfPredicates, 46 NumberOfNonLiveVariables, 4656 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 29 InterpolantComputations, 11 PerfectInterpolantSequences, 1515/4186 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: 61.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 24, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 51, TOOLS_POST_TIME: 57.8s, 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: 51, TOOLS_QUANTIFIERELIM_TIME: 57.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 38.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 88, FLUID_YES_ANSWERS: 9, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 9, DOMAIN_ALPHA_TIME: 3.5s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 24, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 50.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 50.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, 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: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 256, DAG_COMPRESSION_RETAINED_NODES: 76, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: (((((((((((((((((length <= 2147483646 && 0 <= list) && 0 <= #NULL) && 0 <= plist) && #NULL <= 0) && 0 <= item) && 1 <= c) && 0 <= list) && 0 <= plist) && item <= 0) && list <= 0) && plist <= 0) && #NULL <= 0) && 0 <= plist) && 0 <= plist) && 0 <= #NULL) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (0 <= c + 2147483648 && length <= 0) - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 8 <= c) && 0 <= item) && length <= 8) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 10 <= c) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && length <= 10) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && length < 2147483639) && 0 <= plist) && list == 0) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && 13 <= c) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 0 <= item) && length <= 4) && 0 <= list) && 0 <= plist) && item <= 0) && 4 <= c) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && length < 2147483641) && 15 <= c) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 19 <= c) && 0 <= item) && length < 2147483645) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 18 <= c) && 0 <= plist) && list == 0) && 0 <= item) && 0 <= list) && length < 2147483644) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && length <= 2) && 0 <= plist) && #NULL == 0) && 2 <= c) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 17 <= c) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && length < 2147483643) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((list == 0 && c == 0) && 0 <= list) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && length == 0) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && length < 2147483642) && 16 <= c) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && length <= 3) && 0 <= plist) && list == 0) && 3 <= c) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 6 <= c) && length <= 6) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 5 <= c) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && length <= 5) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 14 <= c) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && length < 2147483640) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && length <= 9) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && 9 <= c) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 11 <= c) && length < 2147483637) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && length < 2147483638) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 12 <= c) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && length <= 1) && 0 <= plist) && list == 0) && 0 <= item) && 1 <= c) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && 0 <= plist) && #NULL == 0) && 0 <= plist) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || ((((((((((((((((c <= 19 && 0 <= plist) && list == 0) && 0 <= item) && 0 <= list) && 0 <= plist) && item <= 0) && plist <= 0) && 1 <= length) && length <= 7) && 0 <= plist) && #NULL == 0) && 0 <= plist) && 7 <= c) && plist <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-25 23:50:02,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81990d8-c76f-4d13-898d-762e6b8f48e7/bin/utaipan-ByfvJB40ur/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