./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-crafted/mapavg5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/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_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/mapavg5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 407fcf7d2eac351408fa4d5f2ec0e8445116bd56ec588be775b50f5c012c0e01 --- 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 [2022-11-26 00:48:57,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:48:57,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:48:57,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:48:57,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:48:57,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:48:57,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:48:57,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:48:57,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:48:57,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:48:57,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:48:57,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:48:57,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:48:57,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:48:57,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:48:57,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:48:57,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:48:57,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:48:57,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:48:57,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:48:57,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:48:57,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:48:57,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:48:57,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:48:57,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:48:57,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:48:57,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:48:57,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:48:57,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:48:57,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:48:57,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:48:57,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:48:57,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:48:57,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:48:57,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:48:57,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:48:57,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:48:57,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:48:57,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:48:57,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:48:57,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:48:57,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:48:57,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:48:57,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:48:57,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:48:57,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:48:57,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:48:57,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:48:57,136 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:48:57,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:48:57,136 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:48:57,137 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:48:57,137 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:48:57,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:48:57,138 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:48:57,138 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:48:57,138 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:48:57,138 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:48:57,139 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:48:57,139 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:48:57,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:48:57,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:48:57,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:48:57,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:48:57,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:48:57,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:48:57,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:48:57,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:48:57,142 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:48:57,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:48:57,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:48:57,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:48:57,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:48:57,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:48:57,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:48:57,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:48:57,144 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:48:57,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:48:57,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:48:57,145 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:48:57,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:48:57,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:48:57,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:48:57,146 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_c3ef3f26-0e7d-4091-8c69-121f65649e58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 407fcf7d2eac351408fa4d5f2ec0e8445116bd56ec588be775b50f5c012c0e01 [2022-11-26 00:48:57,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:48:57,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:48:57,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:48:57,557 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:48:57,557 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:48:57,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-crafted/mapavg5.i [2022-11-26 00:49:01,475 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:49:01,755 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:49:01,756 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/sv-benchmarks/c/array-crafted/mapavg5.i [2022-11-26 00:49:01,764 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/data/16f987a2c/99e1a817bcde44798968559aa8fd8fd0/FLAG34b746e7d [2022-11-26 00:49:01,782 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/data/16f987a2c/99e1a817bcde44798968559aa8fd8fd0 [2022-11-26 00:49:01,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:49:01,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:49:01,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:49:01,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:49:01,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:49:01,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:49:01" (1/1) ... [2022-11-26 00:49:01,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bd9c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:01, skipping insertion in model container [2022-11-26 00:49:01,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:49:01" (1/1) ... [2022-11-26 00:49:01,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:49:01,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:49:02,104 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/sv-benchmarks/c/array-crafted/mapavg5.i[1383,1396] [2022-11-26 00:49:02,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:49:02,120 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:49:02,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/sv-benchmarks/c/array-crafted/mapavg5.i[1383,1396] [2022-11-26 00:49:02,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:49:02,167 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:49:02,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02 WrapperNode [2022-11-26 00:49:02,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:49:02,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:49:02,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:49:02,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:49:02,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,212 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2022-11-26 00:49:02,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:49:02,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:49:02,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:49:02,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:49:02,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:49:02,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:49:02,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:49:02,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:49:02,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (1/1) ... [2022-11-26 00:49:02,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:49:02,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:02,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:49:02,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:49:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:49:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:49:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:49:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:49:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:49:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:49:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:49:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure mapavg [2022-11-26 00:49:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure mapavg [2022-11-26 00:49:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:49:02,444 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:49:02,447 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:49:02,753 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:49:02,812 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:49:02,812 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-26 00:49:02,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:49:02 BoogieIcfgContainer [2022-11-26 00:49:02,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:49:02,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:49:02,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:49:02,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:49:02,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:49:01" (1/3) ... [2022-11-26 00:49:02,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3ca0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:49:02, skipping insertion in model container [2022-11-26 00:49:02,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:02" (2/3) ... [2022-11-26 00:49:02,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3ca0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:49:02, skipping insertion in model container [2022-11-26 00:49:02,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:49:02" (3/3) ... [2022-11-26 00:49:02,826 INFO L112 eAbstractionObserver]: Analyzing ICFG mapavg5.i [2022-11-26 00:49:02,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:49:02,851 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:49:02,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:49:02,922 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;@613d12ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:49:02,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:49:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:49:02,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:49:02,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:02,943 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:02,964 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:02,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:02,971 INFO L85 PathProgramCache]: Analyzing trace with hash -605605805, now seen corresponding path program 1 times [2022-11-26 00:49:02,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:02,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871717698] [2022-11-26 00:49:02,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:02,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:03,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:03,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871717698] [2022-11-26 00:49:03,258 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-26 00:49:03,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055510347] [2022-11-26 00:49:03,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:03,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:03,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:03,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:03,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:49:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:03,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:49:03,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:49:03,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:49:03,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055510347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:03,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:03,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:03,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293187557] [2022-11-26 00:49:03,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:03,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:49:03,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:03,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:49:03,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:03,570 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:49:03,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:03,630 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2022-11-26 00:49:03,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:49:03,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2022-11-26 00:49:03,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:03,643 INFO L225 Difference]: With dead ends: 36 [2022-11-26 00:49:03,643 INFO L226 Difference]: Without dead ends: 17 [2022-11-26 00:49:03,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:03,652 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:03,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-26 00:49:03,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-26 00:49:03,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:49:03,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-26 00:49:03,703 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 21 [2022-11-26 00:49:03,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:03,704 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-26 00:49:03,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 00:49:03,704 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-26 00:49:03,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 00:49:03,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:03,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:03,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:49:03,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-26 00:49:03,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:03,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:03,909 INFO L85 PathProgramCache]: Analyzing trace with hash 300632270, now seen corresponding path program 1 times [2022-11-26 00:49:03,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:03,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955505716] [2022-11-26 00:49:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:03,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:03,939 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:49:03,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [838404351] [2022-11-26 00:49:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:03,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:03,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:03,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:03,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:49:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:04,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:49:04,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:49:04,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:49:04,208 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-26 00:49:04,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:04,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955505716] [2022-11-26 00:49:04,209 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:49:04,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838404351] [2022-11-26 00:49:04,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838404351] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:49:04,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [672761741] [2022-11-26 00:49:04,241 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:49:04,241 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:49:04,247 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:49:04,263 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:49:04,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:49:04,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:04,445 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:49:04,447 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 [2022-11-26 00:49:04,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:04,490 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 21 treesize of output 26 [2022-11-26 00:49:04,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:04,548 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 0 case distinctions, treesize of input 31 treesize of output 33 [2022-11-26 00:49:04,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:04,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:04,730 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-26 00:49:04,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 210 treesize of output 198 [2022-11-26 00:49:04,824 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 16 treesize of output 12 [2022-11-26 00:49:04,899 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-26 00:49:04,911 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:49:05,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [672761741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:05,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:49:05,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4] total 11 [2022-11-26 00:49:05,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423243085] [2022-11-26 00:49:05,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:05,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:49:05,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:05,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:49:05,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:49:05,142 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:49:05,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:05,381 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2022-11-26 00:49:05,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:49:05,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-11-26 00:49:05,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:05,383 INFO L225 Difference]: With dead ends: 30 [2022-11-26 00:49:05,383 INFO L226 Difference]: Without dead ends: 18 [2022-11-26 00:49:05,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:49:05,385 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:05,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 12 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:49:05,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-26 00:49:05,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-26 00:49:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:49:05,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-11-26 00:49:05,395 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 22 [2022-11-26 00:49:05,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:05,396 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-11-26 00:49:05,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:49:05,396 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-26 00:49:05,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-26 00:49:05,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:05,398 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:05,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:49:05,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:05,605 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:05,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:05,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1468513756, now seen corresponding path program 1 times [2022-11-26 00:49:05,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:05,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361895667] [2022-11-26 00:49:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:05,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:05,635 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:49:05,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16934368] [2022-11-26 00:49:05,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:05,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:05,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:05,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:05,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:49:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:05,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:49:05,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-26 00:49:05,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:49:05,860 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-26 00:49:05,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:05,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361895667] [2022-11-26 00:49:05,862 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:49:05,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16934368] [2022-11-26 00:49:05,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16934368] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:49:05,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1870511462] [2022-11-26 00:49:05,879 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:49:05,880 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:49:05,880 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:49:05,880 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:49:05,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:49:05,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:05,934 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:49:05,935 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 [2022-11-26 00:49:05,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:05,955 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 21 treesize of output 26 [2022-11-26 00:49:06,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:06,016 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 0 case distinctions, treesize of input 31 treesize of output 33 [2022-11-26 00:49:06,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:06,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:06,172 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-26 00:49:06,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 210 treesize of output 198 [2022-11-26 00:49:06,292 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 16 treesize of output 12 [2022-11-26 00:49:06,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:06,452 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-26 00:49:06,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:49:06,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2022-11-26 00:49:06,991 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-26 00:49:07,036 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:49:20,006 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '522#(and (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4) |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (exists ((v_mapavg_~ret~0_BEFORE_RETURN_7 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod (ite (and (< v_mapavg_~ret~0_BEFORE_RETURN_7 0) (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0) 0))) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0)) 4294967296) 2147483647) (mod (ite (and (< v_mapavg_~ret~0_BEFORE_RETURN_7 0) (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0) 0))) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0)) 4294967296) (+ (mod (ite (and (< v_mapavg_~ret~0_BEFORE_RETURN_7 0) (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0) 0))) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_7 ~N~0)) 4294967296) (- 4294967296))))) (<= 1 ~N~0) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (= |ULTIMATE.start_main_~i~2#1| 0) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= ~N~0 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:49:20,007 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:49:20,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:49:20,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-26 00:49:20,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209240294] [2022-11-26 00:49:20,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:49:20,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:49:20,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:20,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:49:20,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=305, Unknown=1, NotChecked=0, Total=380 [2022-11-26 00:49:20,011 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-26 00:49:20,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:20,072 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2022-11-26 00:49:20,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:49:20,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 25 [2022-11-26 00:49:20,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:20,074 INFO L225 Difference]: With dead ends: 33 [2022-11-26 00:49:20,074 INFO L226 Difference]: Without dead ends: 19 [2022-11-26 00:49:20,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=74, Invalid=305, Unknown=1, NotChecked=0, Total=380 [2022-11-26 00:49:20,076 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:20,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-26 00:49:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-26 00:49:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:49:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-26 00:49:20,085 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 25 [2022-11-26 00:49:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:20,086 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-26 00:49:20,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-26 00:49:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-11-26 00:49:20,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-26 00:49:20,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:20,088 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:20,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:49:20,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:20,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:20,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:20,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1787452129, now seen corresponding path program 2 times [2022-11-26 00:49:20,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:20,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642377147] [2022-11-26 00:49:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:20,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:20,349 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:49:20,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590712618] [2022-11-26 00:49:20,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:49:20,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:20,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:20,364 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:20,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:49:20,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-26 00:49:20,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:49:20,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:49:20,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:20,507 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-26 00:49:20,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:49:20,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:20,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642377147] [2022-11-26 00:49:20,508 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:49:20,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590712618] [2022-11-26 00:49:20,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590712618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:20,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:20,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:49:20,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411760949] [2022-11-26 00:49:20,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:20,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:49:20,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:20,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:49:20,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:49:20,512 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:49:20,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:20,551 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-11-26 00:49:20,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:49:20,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2022-11-26 00:49:20,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:20,553 INFO L225 Difference]: With dead ends: 29 [2022-11-26 00:49:20,554 INFO L226 Difference]: Without dead ends: 20 [2022-11-26 00:49:20,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:49:20,555 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:20,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 18 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:20,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-26 00:49:20,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-26 00:49:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:49:20,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2022-11-26 00:49:20,564 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 26 [2022-11-26 00:49:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:20,565 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-11-26 00:49:20,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:49:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-11-26 00:49:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-26 00:49:20,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:20,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:20,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:49:20,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:20,774 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:20,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:20,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1336085508, now seen corresponding path program 1 times [2022-11-26 00:49:20,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:20,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117365164] [2022-11-26 00:49:20,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:20,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:20,799 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:49:20,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969132290] [2022-11-26 00:49:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:20,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:20,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:20,827 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:20,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:49:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:20,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:49:20,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:20,977 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:49:20,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:49:21,076 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:49:21,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:21,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117365164] [2022-11-26 00:49:21,077 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:49:21,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969132290] [2022-11-26 00:49:21,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969132290] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:49:21,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1743931959] [2022-11-26 00:49:21,083 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:49:21,083 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:49:21,084 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:49:21,084 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:49:21,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:49:21,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:21,140 INFO L321 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2022-11-26 00:49:21,141 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 1 case distinctions, treesize of input 21 treesize of output 30 [2022-11-26 00:49:21,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:21,180 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:49:21,180 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 [2022-11-26 00:49:21,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:21,211 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 0 case distinctions, treesize of input 31 treesize of output 33 [2022-11-26 00:49:21,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:21,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:21,306 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-26 00:49:21,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 210 treesize of output 198 [2022-11-26 00:49:21,364 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 16 treesize of output 12 [2022-11-26 00:49:21,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:21,468 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-26 00:49:21,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:21,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:49:21,663 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 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-26 00:49:21,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:21,722 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-26 00:49:21,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 72 [2022-11-26 00:49:21,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 24 [2022-11-26 00:49:21,774 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 16 treesize of output 12 [2022-11-26 00:49:21,967 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-26 00:49:22,003 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:49:54,356 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '933#(and (exists ((v_mapavg_~ret~0_BEFORE_RETURN_14 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_14 0)) (ite (< ~N~0 0) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0) (- 1)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0)) 4294967296) 2147483647) (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_14 0)) (ite (< ~N~0 0) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0) (- 1)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0)) 4294967296) (+ (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_14 0)) (ite (< ~N~0 0) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0) (- 1)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_14 ~N~0)) 4294967296) (- 4294967296))))) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4) |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 1 ~N~0) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= ~N~0 (+ |ULTIMATE.start_main_~i~2#1| 1)) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:49:54,356 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:49:54,357 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:49:54,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2022-11-26 00:49:54,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951380396] [2022-11-26 00:49:54,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:49:54,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:49:54,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:54,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:49:54,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=379, Unknown=5, NotChecked=0, Total=462 [2022-11-26 00:49:54,360 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-26 00:49:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:54,417 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2022-11-26 00:49:54,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:49:54,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2022-11-26 00:49:54,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:54,419 INFO L225 Difference]: With dead ends: 35 [2022-11-26 00:49:54,419 INFO L226 Difference]: Without dead ends: 21 [2022-11-26 00:49:54,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 32.4s TimeCoverageRelationStatistics Valid=78, Invalid=379, Unknown=5, NotChecked=0, Total=462 [2022-11-26 00:49:54,421 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:54,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 19 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:49:54,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-26 00:49:54,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-26 00:49:54,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:49:54,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-26 00:49:54,429 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 27 [2022-11-26 00:49:54,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:54,430 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-26 00:49:54,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-26 00:49:54,431 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-26 00:49:54,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-26 00:49:54,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:54,432 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:54,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:49:54,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:54,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:54,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:54,640 INFO L85 PathProgramCache]: Analyzing trace with hash 42151806, now seen corresponding path program 2 times [2022-11-26 00:49:54,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:54,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128547549] [2022-11-26 00:49:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:54,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:54,667 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:49:54,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702178671] [2022-11-26 00:49:54,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:49:54,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:49:54,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:54,670 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:49:54,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:49:54,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-26 00:49:54,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:49:54,991 WARN L261 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 108 conjunts are in the unsatisfiable core [2022-11-26 00:49:54,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:49:55,040 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 13 treesize of output 9 [2022-11-26 00:49:58,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:49:58,346 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:49:58,346 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 281 treesize of output 151 [2022-11-26 00:50:23,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:23,249 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:50:23,250 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 489 treesize of output 264 [2022-11-26 00:50:31,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:50:31,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:31,270 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:50:31,270 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 406 treesize of output 276 [2022-11-26 00:50:40,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:50:40,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:50:40,164 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:50:40,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 739 treesize of output 382 [2022-11-26 00:51:01,343 WARN L233 SmtUtils]: Spent 18.62s on a formula simplification. DAG size of input: 69 DAG size of output: 50 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:51:12,262 WARN L233 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:51:12,425 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 34 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 00:51:12,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:51:44,598 WARN L233 SmtUtils]: Spent 8.89s on a formula simplification. DAG size of input: 100 DAG size of output: 68 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:54:01,638 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse35 (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|))) (let ((.cse34 (select .cse35 |c_ULTIMATE.start_main_~#x~0#1.offset|))) (let ((.cse189 (let ((.cse191 (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 4))) (let ((.cse190 (store (store .cse35 |c_ULTIMATE.start_main_~#x~0#1.offset| (select .cse35 .cse191)) (+ (* c_~N~0 4) (- 4) |c_ULTIMATE.start_main_~#x~0#1.offset|) .cse34))) (+ (select .cse190 .cse191) (select .cse190 |c_ULTIMATE.start_main_~#x~0#1.offset|) 1))))) (let ((.cse96 (div .cse189 c_~N~0))) (let ((.cse187 (< .cse189 0)) (.cse3 (= (mod .cse189 c_~N~0) 0)) (.cse36 (+ |c_ULTIMATE.start_main_~ret~1#1| 4294967296)) (.cse188 (mod .cse96 4294967296))) (let ((.cse16 (= |c_ULTIMATE.start_main_~ret~1#1| .cse188)) (.cse8 (= .cse36 .cse188)) (.cse9 (and .cse187 (not .cse3))) (.cse4 (not .cse187)) (.cse97 (< c_~N~0 0))) (and (or (let ((.cse37 (mod (+ .cse96 1) 4294967296))) (let ((.cse0 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse95 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse94 (div .cse95 c_~N~0))) (or (<= (mod (+ .cse94 1) 4294967296) 2147483647) (= (mod .cse95 c_~N~0) 0) (not (<= (mod .cse94 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse95 0)) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse2 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse92 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse93 (div .cse92 c_~N~0))) (let ((.cse91 (mod (+ .cse93 1) 4294967296))) (or (<= .cse91 2147483647) (= (mod .cse92 c_~N~0) 0) (not (<= (mod .cse93 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse92 0)) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse36 .cse91))))))) (.cse19 (<= .cse37 2147483647)) (.cse12 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse90 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse89 (div .cse90 c_~N~0))) (or (<= (mod (+ .cse89 1) 4294967296) 2147483647) (<= (mod .cse89 4294967296) 2147483647) (not (= (mod .cse90 c_~N~0) 0)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse13 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse88 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse86 (div .cse88 c_~N~0))) (let ((.cse87 (mod .cse86 4294967296))) (or (<= (mod (+ .cse86 1) 4294967296) 2147483647) (<= .cse87 2147483647) (not (= (mod .cse88 c_~N~0) 0)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse87 .cse36))))))) (.cse10 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse84 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse85 (div .cse84 c_~N~0))) (let ((.cse83 (mod (+ .cse85 1) 4294967296))) (or (<= .cse83 2147483647) (= (mod .cse84 c_~N~0) 0) (<= (mod .cse85 4294967296) 2147483647) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse84 0)) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse36 .cse83))))))) (.cse11 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse82 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse81 (div .cse82 c_~N~0))) (or (<= (mod (+ .cse81 1) 4294967296) 2147483647) (= (mod .cse82 c_~N~0) 0) (<= (mod .cse81 4294967296) 2147483647) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse82 0)) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse24 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse79 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse78 (div .cse79 c_~N~0))) (let ((.cse80 (mod .cse78 4294967296))) (or (not (<= (mod (+ .cse78 1) 4294967296) 2147483647)) (< .cse79 0) (not (<= .cse80 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= |c_ULTIMATE.start_main_~ret~1#1| .cse80))))))) (.cse25 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse77 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse76 (div .cse77 c_~N~0))) (or (not (<= (mod (+ .cse76 1) 4294967296) 2147483647)) (< .cse77 0) (not (<= (mod .cse76 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse14 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse74 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse73 (div .cse74 c_~N~0))) (let ((.cse75 (mod .cse73 4294967296))) (or (not (<= (mod (+ .cse73 1) 4294967296) 2147483647)) (not (= (mod .cse74 c_~N~0) 0)) (not (<= .cse75 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= |c_ULTIMATE.start_main_~ret~1#1| .cse75))))))) (.cse15 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse72 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse71 (div .cse72 c_~N~0))) (or (not (<= (mod (+ .cse71 1) 4294967296) 2147483647)) (not (= (mod .cse72 c_~N~0) 0)) (not (<= (mod .cse71 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse6 (= |c_ULTIMATE.start_main_~ret~1#1| .cse37)) (.cse5 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse69 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse68 (div .cse69 c_~N~0))) (let ((.cse70 (mod .cse68 4294967296))) (or (<= (mod (+ .cse68 1) 4294967296) 2147483647) (not (= (mod .cse69 c_~N~0) 0)) (not (<= .cse70 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= |c_ULTIMATE.start_main_~ret~1#1| .cse70))))))) (.cse7 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse67 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse66 (div .cse67 c_~N~0))) (or (<= (mod (+ .cse66 1) 4294967296) 2147483647) (not (= (mod .cse67 c_~N~0) 0)) (not (<= (mod .cse66 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse31 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse65 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse63 (div .cse65 c_~N~0))) (let ((.cse64 (mod .cse63 4294967296))) (or (not (<= (mod (+ .cse63 1) 4294967296) 2147483647)) (<= .cse64 2147483647) (not (= (mod .cse65 c_~N~0) 0)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse64 .cse36))))))) (.cse30 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse62 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse61 (div .cse62 c_~N~0))) (or (not (<= (mod (+ .cse61 1) 4294967296) 2147483647)) (<= (mod .cse61 4294967296) 2147483647) (not (= (mod .cse62 c_~N~0) 0)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse28 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse60 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse59 (div .cse60 c_~N~0))) (or (not (<= (mod (+ .cse59 1) 4294967296) 2147483647)) (<= (mod .cse59 4294967296) 2147483647) (< .cse60 0) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse29 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse58 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse56 (div .cse58 c_~N~0))) (let ((.cse57 (mod .cse56 4294967296))) (or (not (<= (mod (+ .cse56 1) 4294967296) 2147483647)) (<= .cse57 2147483647) (< .cse58 0) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse57 .cse36))))))) (.cse17 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse55 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse54 (div .cse55 c_~N~0))) (or (not (<= (mod (+ .cse54 1) 4294967296) 2147483647)) (= (mod .cse55 c_~N~0) 0) (not (<= (mod .cse54 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse55 0)) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse18 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse52 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse53 (div .cse52 c_~N~0))) (let ((.cse51 (mod (+ .cse53 1) 4294967296))) (or (not (<= .cse51 2147483647)) (= (mod .cse52 c_~N~0) 0) (not (<= (mod .cse53 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (= |c_ULTIMATE.start_main_~ret~1#1| .cse51) (not (< .cse52 0)) (not (< v_mapavg_~i~0_81 c_~N~0)))))))) (.cse26 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse49 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse50 (div .cse49 c_~N~0))) (let ((.cse48 (mod (+ .cse50 1) 4294967296))) (or (not (<= .cse48 2147483647)) (= (mod .cse49 c_~N~0) 0) (<= (mod .cse50 4294967296) 2147483647) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (= |c_ULTIMATE.start_main_~ret~1#1| .cse48) (not (< .cse49 0)) (not (< v_mapavg_~i~0_81 c_~N~0)))))))) (.cse27 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse47 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse46 (div .cse47 c_~N~0))) (or (not (<= (mod (+ .cse46 1) 4294967296) 2147483647)) (= (mod .cse47 c_~N~0) 0) (<= (mod .cse46 4294967296) 2147483647) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse47 0)) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse23 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse45 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse44 (div .cse45 c_~N~0))) (or (<= (mod (+ .cse44 1) 4294967296) 2147483647) (< .cse45 0) (not (<= (mod .cse44 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse22 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse42 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse41 (div .cse42 c_~N~0))) (let ((.cse43 (mod .cse41 4294967296))) (or (<= (mod (+ .cse41 1) 4294967296) 2147483647) (< .cse42 0) (not (<= .cse43 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= |c_ULTIMATE.start_main_~ret~1#1| .cse43))))))) (.cse20 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse40 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse38 (div .cse40 c_~N~0))) (let ((.cse39 (mod .cse38 4294967296))) (or (<= (mod (+ .cse38 1) 4294967296) 2147483647) (<= .cse39 2147483647) (< .cse40 0) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse39 .cse36))))))) (.cse1 (= .cse36 .cse37)) (.cse21 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse33 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse32 (div .cse33 c_~N~0))) (or (<= (mod (+ .cse32 1) 4294967296) 2147483647) (<= (mod .cse32 4294967296) 2147483647) (< .cse33 0) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)))))))) (and (or (and (or .cse0 .cse1) .cse2) .cse3 .cse4) (or .cse3 (and .cse5 (or .cse6 .cse7)) .cse4) (or (and (or .cse8 .cse0) .cse2) .cse9) (or (and .cse10 (or .cse8 .cse11)) .cse9) (or (and (or .cse12 .cse1) .cse13) .cse3 .cse4) (or (and .cse14 (or .cse15 .cse16)) .cse9) (or .cse3 (and (or .cse17 .cse6) .cse18 (or .cse19 .cse17)) .cse4) (or (and .cse20 (or .cse8 .cse21)) .cse9) (or .cse3 (and .cse22 (or .cse6 .cse23)) .cse4) (or (and .cse24 (or .cse25 .cse16)) .cse9) (or (and .cse26 (or .cse19 .cse27) (or .cse27 .cse6)) .cse3 .cse4) (or (and (or .cse12 .cse8) .cse13) .cse9) (or .cse3 .cse4 (and .cse10 (or .cse1 .cse11))) (or .cse3 (and (or .cse28 .cse1) .cse29) .cse4) (or .cse3 (and .cse24 (or .cse25 .cse6)) .cse4) (or (and (or .cse30 .cse8) .cse31) .cse9) (or .cse3 (and .cse14 (or .cse15 .cse6)) .cse4) (or (and .cse5 (or .cse16 .cse7)) .cse9) (or (and .cse31 (or .cse30 .cse1)) .cse3 .cse4) (or (and (or .cse8 .cse28) .cse29) .cse9) (or (and (or .cse17 .cse16) .cse18) .cse9) (or (and .cse26 (or .cse27 .cse16)) .cse9) (or (and (or .cse16 .cse23) .cse22) .cse9) (or (and .cse20 (or .cse1 .cse21)) .cse3 .cse4)))) .cse97) (or (let ((.cse131 (mod (+ .cse96 4294967295) 4294967296))) (let ((.cse108 (<= .cse131 2147483647))) (let ((.cse103 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse184 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse186 (div .cse184 c_~N~0))) (let ((.cse185 (mod .cse186 4294967296))) (or (not (= (mod .cse184 c_~N~0) 0)) (not (<= .cse185 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= (mod (+ 4294967295 .cse186) 4294967296) 2147483647) (= |c_ULTIMATE.start_main_~ret~1#1| .cse185))))))) (.cse104 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse182 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse183 (div .cse182 c_~N~0))) (or (not (= (mod .cse182 c_~N~0) 0)) (not (<= (mod .cse183 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= (mod (+ 4294967295 .cse183) 4294967296) 2147483647)))))) (.cse107 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse181 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse180 (div .cse181 c_~N~0))) (or (not (<= (mod (+ 4294967295 .cse180) 4294967296) 2147483647)) (= (mod .cse181 c_~N~0) 0) (<= (mod .cse180 4294967296) 2147483647) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse181 0)) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse109 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse178 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse179 (div .cse178 c_~N~0))) (let ((.cse177 (mod (+ 4294967295 .cse179) 4294967296))) (or (not (<= .cse177 2147483647)) (= (mod .cse178 c_~N~0) 0) (<= (mod .cse179 4294967296) 2147483647) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse178 0)) (not (< v_mapavg_~i~0_81 c_~N~0)) (= |c_ULTIMATE.start_main_~ret~1#1| .cse177))))))) (.cse98 (= |c_ULTIMATE.start_main_~ret~1#1| .cse131)) (.cse101 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse176 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse174 (div .cse176 c_~N~0))) (let ((.cse175 (mod .cse174 4294967296))) (or (not (<= (mod (+ 4294967295 .cse174) 4294967296) 2147483647)) (<= .cse175 2147483647) (not (= (mod .cse176 c_~N~0) 0)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse175 .cse36))))))) (.cse102 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse173 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse172 (div .cse173 c_~N~0))) (or (not (<= (mod (+ 4294967295 .cse172) 4294967296) 2147483647)) (<= (mod .cse172 4294967296) 2147483647) (not (= (mod .cse173 c_~N~0) 0)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse117 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse170 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse171 (div .cse170 c_~N~0))) (let ((.cse169 (mod .cse171 4294967296))) (or (<= .cse169 2147483647) (< .cse170 0) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse169 .cse36) (<= (mod (+ 4294967295 .cse171) 4294967296) 2147483647))))))) (.cse116 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse168 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse167 (div .cse168 c_~N~0))) (or (<= (mod .cse167 4294967296) 2147483647) (< .cse168 0) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= (mod (+ 4294967295 .cse167) 4294967296) 2147483647)))))) (.cse121 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse165 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse166 (div .cse165 c_~N~0))) (let ((.cse164 (mod (+ 4294967295 .cse166) 4294967296))) (or (not (<= .cse164 2147483647)) (= (mod .cse165 c_~N~0) 0) (not (<= (mod .cse166 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse165 0)) (not (< v_mapavg_~i~0_81 c_~N~0)) (= |c_ULTIMATE.start_main_~ret~1#1| .cse164))))))) (.cse120 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse163 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse162 (div .cse163 c_~N~0))) (or (not (<= (mod (+ 4294967295 .cse162) 4294967296) 2147483647)) (= (mod .cse163 c_~N~0) 0) (not (<= (mod .cse162 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse163 0)) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse111 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse161 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse160 (div .cse161 c_~N~0))) (or (<= (mod .cse160 4294967296) 2147483647) (not (= (mod .cse161 c_~N~0) 0)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= (mod (+ 4294967295 .cse160) 4294967296) 2147483647)))))) (.cse112 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse158 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse159 (div .cse158 c_~N~0))) (let ((.cse157 (mod .cse159 4294967296))) (or (<= .cse157 2147483647) (not (= (mod .cse158 c_~N~0) 0)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse157 .cse36) (<= (mod (+ 4294967295 .cse159) 4294967296) 2147483647))))))) (.cse106 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse154 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse156 (div .cse154 c_~N~0))) (let ((.cse155 (mod .cse156 4294967296))) (or (< .cse154 0) (not (<= .cse155 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= (mod (+ 4294967295 .cse156) 4294967296) 2147483647) (= |c_ULTIMATE.start_main_~ret~1#1| .cse155))))))) (.cse105 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse152 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse153 (div .cse152 c_~N~0))) (or (< .cse152 0) (not (<= (mod .cse153 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= (mod (+ 4294967295 .cse153) 4294967296) 2147483647)))))) (.cse122 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse151 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse149 (div .cse151 c_~N~0))) (let ((.cse150 (mod .cse149 4294967296))) (or (not (<= (mod (+ 4294967295 .cse149) 4294967296) 2147483647)) (<= .cse150 2147483647) (< .cse151 0) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= .cse150 .cse36))))))) (.cse123 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse148 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse147 (div .cse148 c_~N~0))) (or (not (<= (mod (+ 4294967295 .cse147) 4294967296) 2147483647)) (<= (mod .cse147 4294967296) 2147483647) (< .cse148 0) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse119 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse145 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse144 (div .cse145 c_~N~0))) (let ((.cse146 (mod .cse144 4294967296))) (or (not (<= (mod (+ 4294967295 .cse144) 4294967296) 2147483647)) (not (= (mod .cse145 c_~N~0) 0)) (not (<= .cse146 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= |c_ULTIMATE.start_main_~ret~1#1| .cse146))))))) (.cse118 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse143 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse142 (div .cse143 c_~N~0))) (or (not (<= (mod (+ 4294967295 .cse142) 4294967296) 2147483647)) (not (= (mod .cse143 c_~N~0) 0)) (not (<= (mod .cse142 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse113 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse140 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse141 (div .cse140 c_~N~0))) (or (= (mod .cse140 c_~N~0) 0) (not (<= (mod .cse141 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse140 0)) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= (mod (+ 4294967295 .cse141) 4294967296) 2147483647)))))) (.cse115 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse137 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse138 (div .cse137 c_~N~0))) (let ((.cse139 (mod (+ 4294967295 .cse138) 4294967296))) (or (= (mod .cse137 c_~N~0) 0) (not (<= (mod .cse138 4294967296) 2147483647)) (= .cse139 .cse36) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse137 0)) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= .cse139 2147483647))))))) (.cse100 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse135 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse134 (div .cse135 c_~N~0))) (let ((.cse136 (mod .cse134 4294967296))) (or (not (<= (mod (+ 4294967295 .cse134) 4294967296) 2147483647)) (< .cse135 0) (not (<= .cse136 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0)) (= |c_ULTIMATE.start_main_~ret~1#1| .cse136))))))) (.cse99 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse133 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse132 (div .cse133 c_~N~0))) (or (not (<= (mod (+ 4294967295 .cse132) 4294967296) 2147483647)) (< .cse133 0) (not (<= (mod .cse132 4294967296) 2147483647)) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< v_mapavg_~i~0_81 c_~N~0))))))) (.cse110 (= .cse36 .cse131)) (.cse124 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse128 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse129 (div .cse128 c_~N~0))) (let ((.cse130 (mod (+ 4294967295 .cse129) 4294967296))) (or (= (mod .cse128 c_~N~0) 0) (<= (mod .cse129 4294967296) 2147483647) (= .cse130 .cse36) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse128 0)) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= .cse130 2147483647))))))) (.cse125 (forall ((v_mapavg_~i~0_81 Int)) (let ((.cse126 (+ .cse34 v_mapavg_~i~0_81 (select .cse35 (+ (* v_mapavg_~i~0_81 4) |c_ULTIMATE.start_main_~#x~0#1.offset|))))) (let ((.cse127 (div .cse126 c_~N~0))) (or (= (mod .cse126 c_~N~0) 0) (<= (mod .cse127 4294967296) 2147483647) (< (+ v_mapavg_~i~0_81 1) c_~N~0) (not (< .cse126 0)) (not (< v_mapavg_~i~0_81 c_~N~0)) (<= (mod (+ 4294967295 .cse127) 4294967296) 2147483647)))))) (.cse114 (not .cse108))) (and (or (and (or .cse98 .cse99) .cse100) .cse3 .cse4) (or (and .cse101 (or .cse8 .cse102)) .cse9) (or (and .cse103 (or .cse98 .cse104)) .cse3 .cse4) (or (and .cse103 (or .cse104 .cse16)) .cse9) (or (and (or .cse98 .cse105) .cse106) .cse3 .cse4) (or (and (or .cse98 .cse107) (or .cse107 .cse108) .cse109) .cse3 .cse4) (or (and (or .cse107 .cse16) .cse109) .cse9) (or (and (or .cse110 .cse111) .cse112) .cse3 .cse4) (or (and (or .cse110 .cse113) (or .cse113 .cse114) .cse115) .cse3 .cse4) (or (and (or .cse8 .cse116) .cse117) .cse9) (or .cse3 (and (or .cse118 .cse98) .cse119) .cse4) (or (and (or .cse98 .cse120) (or .cse120 .cse108) .cse121) .cse3 .cse4) (or (and .cse101 (or .cse110 .cse102)) .cse3 .cse4) (or .cse3 .cse4 (and .cse117 (or .cse110 .cse116))) (or .cse9 (and .cse122 (or .cse8 .cse123))) (or (and .cse121 (or .cse16 .cse120)) .cse9) (or (and (or .cse8 .cse111) .cse112) .cse9) (or .cse9 (and .cse106 (or .cse105 .cse16))) (or (and .cse122 (or .cse110 .cse123)) .cse3 .cse4) (or (and .cse119 (or .cse118 .cse16)) .cse9) (or (and (or .cse8 .cse113) .cse115) .cse9) (or (and .cse100 (or .cse16 .cse99)) .cse9) (or (and .cse124 (or .cse8 .cse125)) .cse9) (or (and (or .cse110 .cse125) .cse124 (or .cse125 .cse114)) .cse3 .cse4))))) (not .cse97))))))))) is different from true [2022-11-26 00:54:01,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:01,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128547549] [2022-11-26 00:54:01,678 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:54:01,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702178671] [2022-11-26 00:54:01,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702178671] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:54:01,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1888726986] [2022-11-26 00:54:01,681 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:54:01,681 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:54:01,682 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:54:01,682 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:54:01,682 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:54:01,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:01,712 INFO L321 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2022-11-26 00:54:01,712 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 1 case distinctions, treesize of input 21 treesize of output 30 [2022-11-26 00:54:01,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:01,746 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:54:01,747 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 [2022-11-26 00:54:01,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:01,772 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 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-26 00:54:01,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:01,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:01,852 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-26 00:54:01,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 200 treesize of output 199 [2022-11-26 00:54:01,937 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 16 treesize of output 12 [2022-11-26 00:54:02,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:02,011 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-26 00:54:02,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:02,144 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 0 case distinctions, treesize of input 25 treesize of output 20 [2022-11-26 00:54:02,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:02,202 INFO L321 Elim1Store]: treesize reduction 45, result has 34.8 percent of original size [2022-11-26 00:54:02,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 83 [2022-11-26 00:54:02,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 24 [2022-11-26 00:54:02,261 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 16 treesize of output 12 [2022-11-26 00:54:02,415 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-26 00:54:02,452 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:54:37,876 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1192#(and (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (exists ((v_mapavg_~ret~0_BEFORE_RETURN_20 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_20 0)) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0)) 4294967296) 2147483647) (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_20 0)) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0)) 4294967296) (+ (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_20 0)) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_20 ~N~0)) 4294967296) (- 4294967296))))) (<= ~N~0 2147483647) (<= 0 |ULTIMATE.start_main_~#x~0#1.offset|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4) |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 1 ~N~0) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= ~N~0 (+ |ULTIMATE.start_main_~i~2#1| 1)) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-26 00:54:37,876 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:54:37,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:54:37,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2022-11-26 00:54:37,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577250364] [2022-11-26 00:54:37,876 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-26 00:54:37,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-26 00:54:37,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:37,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-26 00:54:37,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1822, Unknown=7, NotChecked=86, Total=2070 [2022-11-26 00:54:37,879 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 21 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:55:24,278 WARN L233 SmtUtils]: Spent 19.69s on a formula simplification. DAG size of input: 102 DAG size of output: 83 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:55:41,202 WARN L233 SmtUtils]: Spent 12.22s on a formula simplification. DAG size of input: 102 DAG size of output: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:55:41,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:41,643 INFO L93 Difference]: Finished difference Result 56 states and 70 transitions. [2022-11-26 00:55:41,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:55:41,643 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-26 00:55:41,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:41,646 INFO L225 Difference]: With dead ends: 56 [2022-11-26 00:55:41,646 INFO L226 Difference]: Without dead ends: 52 [2022-11-26 00:55:41,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 188.1s TimeCoverageRelationStatistics Valid=257, Invalid=2819, Unknown=8, NotChecked=108, Total=3192 [2022-11-26 00:55:41,648 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:41,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 85 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-26 00:55:41,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-26 00:55:41,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 42. [2022-11-26 00:55:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 32 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2022-11-26 00:55:41,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2022-11-26 00:55:41,669 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 30 [2022-11-26 00:55:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:41,669 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2022-11-26 00:55:41,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:55:41,670 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2022-11-26 00:55:41,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:55:41,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:41,671 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:41,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:55:41,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 00:55:41,879 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:55:41,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:41,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1697894862, now seen corresponding path program 3 times [2022-11-26 00:55:41,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:41,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139032275] [2022-11-26 00:55:41,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:41,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:41,903 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:55:41,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954239962] [2022-11-26 00:55:41,903 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:55:41,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:55:41,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:55:41,905 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:55:41,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:55:42,003 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:55:42,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:55:42,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:55:42,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 29 proven. 13 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-26 00:55:42,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:42,173 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:55:42,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:42,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139032275] [2022-11-26 00:55:42,173 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:55:42,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954239962] [2022-11-26 00:55:42,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954239962] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:42,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1648276870] [2022-11-26 00:55:42,176 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:55:42,177 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:55:42,177 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:55:42,177 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:55:42,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:55:42,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:42,225 INFO L321 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2022-11-26 00:55:42,226 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 1 case distinctions, treesize of input 21 treesize of output 30 [2022-11-26 00:55:42,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:42,273 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:55:42,273 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 [2022-11-26 00:55:42,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:42,302 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 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-26 00:55:42,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:42,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:42,397 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-26 00:55:42,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 200 treesize of output 199 [2022-11-26 00:55:42,472 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 16 treesize of output 12 [2022-11-26 00:55:42,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:42,542 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-26 00:55:42,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:42,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:42,778 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 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-26 00:55:42,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:42,821 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-26 00:55:42,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 72 [2022-11-26 00:55:42,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 24 [2022-11-26 00:55:42,858 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 16 treesize of output 12 [2022-11-26 00:55:42,996 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-26 00:55:43,023 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:56:12,776 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1571#(and (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4) |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 1 ~N~0) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (exists ((v_mapavg_~ret~0_BEFORE_RETURN_25 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_25 0)) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0)) 4294967296) 2147483647) (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_25 0)) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0)) 4294967296) (+ (- 4294967296) (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_25 0)) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_25 ~N~0)) 4294967296))))) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 1 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= ~N~0 (+ |ULTIMATE.start_main_~i~2#1| 1)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:56:12,776 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:56:12,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:56:12,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-11-26 00:56:12,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403766099] [2022-11-26 00:56:12,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:56:12,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:56:12,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:12,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:56:12,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=463, Unknown=3, NotChecked=0, Total=552 [2022-11-26 00:56:12,779 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-26 00:56:12,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:12,947 INFO L93 Difference]: Finished difference Result 82 states and 107 transitions. [2022-11-26 00:56:12,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:56:12,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 31 [2022-11-26 00:56:12,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:12,949 INFO L225 Difference]: With dead ends: 82 [2022-11-26 00:56:12,949 INFO L226 Difference]: Without dead ends: 64 [2022-11-26 00:56:12,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=104, Invalid=595, Unknown=3, NotChecked=0, Total=702 [2022-11-26 00:56:12,951 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:12,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 74 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:56:12,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-26 00:56:12,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2022-11-26 00:56:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.25) internal successors, (55), 46 states have internal predecessors, (55), 10 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2022-11-26 00:56:12,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2022-11-26 00:56:12,975 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 31 [2022-11-26 00:56:12,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:12,976 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2022-11-26 00:56:12,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-26 00:56:12,976 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2022-11-26 00:56:12,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:56:12,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:12,978 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:12,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-26 00:56:13,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-26 00:56:13,184 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:56:13,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:13,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1089884216, now seen corresponding path program 4 times [2022-11-26 00:56:13,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:13,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899140342] [2022-11-26 00:56:13,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:13,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:13,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:56:13,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519704906] [2022-11-26 00:56:13,201 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-26 00:56:13,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:56:13,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:56:13,202 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:56:13,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:56:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:13,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-26 00:56:13,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:56:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:56:13,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:56:13,503 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:56:13,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:13,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899140342] [2022-11-26 00:56:13,503 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:56:13,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519704906] [2022-11-26 00:56:13,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519704906] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:56:13,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1718849073] [2022-11-26 00:56:13,506 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:56:13,506 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:56:13,506 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:56:13,507 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:56:13,507 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:56:13,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:13,543 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:56:13,543 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 [2022-11-26 00:56:13,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:13,553 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 21 treesize of output 26 [2022-11-26 00:56:13,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:13,568 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 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-26 00:56:13,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:13,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:56:13,651 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-26 00:56:13,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 200 treesize of output 199 [2022-11-26 00:56:13,723 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 16 treesize of output 12 [2022-11-26 00:56:13,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:13,800 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-26 00:56:13,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:13,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:56:13,904 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 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-26 00:56:13,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:13,945 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-26 00:56:13,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 72 [2022-11-26 00:56:13,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 24 [2022-11-26 00:56:13,984 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 16 treesize of output 12 [2022-11-26 00:56:14,101 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-26 00:56:14,126 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:56:45,990 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2019#(and (<= 0 |#NULL.base|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (<= ~N~0 2147483647) (<= 0 |ULTIMATE.start_main_~#x~0#1.offset|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4) |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (exists ((v_mapavg_~ret~0_BEFORE_RETURN_32 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod (ite (and (< v_mapavg_~ret~0_BEFORE_RETURN_32 0) (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0) 0))) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0)) 4294967296) 2147483647) (mod (ite (and (< v_mapavg_~ret~0_BEFORE_RETURN_32 0) (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0) 0))) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0)) 4294967296) (+ (mod (ite (and (< v_mapavg_~ret~0_BEFORE_RETURN_32 0) (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0) 0))) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_32 ~N~0)) 4294967296) (- 4294967296))))) (<= 1 ~N~0) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= ~N~0 (+ |ULTIMATE.start_main_~i~2#1| 1)) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-26 00:56:45,990 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:56:45,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:56:45,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 13 [2022-11-26 00:56:45,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383984392] [2022-11-26 00:56:45,990 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:56:45,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:56:45,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:45,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:56:45,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=593, Unknown=5, NotChecked=0, Total=702 [2022-11-26 00:56:45,992 INFO L87 Difference]: Start difference. First operand 60 states and 82 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-26 00:56:46,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:46,168 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2022-11-26 00:56:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:46,169 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 31 [2022-11-26 00:56:46,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:46,170 INFO L225 Difference]: With dead ends: 68 [2022-11-26 00:56:46,170 INFO L226 Difference]: Without dead ends: 38 [2022-11-26 00:56:46,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=108, Invalid=643, Unknown=5, NotChecked=0, Total=756 [2022-11-26 00:56:46,172 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 31 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:46,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 73 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:56:46,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-26 00:56:46,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2022-11-26 00:56:46,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-26 00:56:46,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2022-11-26 00:56:46,183 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 31 [2022-11-26 00:56:46,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:46,183 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2022-11-26 00:56:46,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 13 states have internal predecessors, (28), 1 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-26 00:56:46,184 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-11-26 00:56:46,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:56:46,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:46,185 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:46,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:56:46,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:56:46,397 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:56:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:46,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1830588061, now seen corresponding path program 5 times [2022-11-26 00:56:46,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:46,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323848655] [2022-11-26 00:56:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:46,418 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:56:46,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105280708] [2022-11-26 00:56:46,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:56:46,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:56:46,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:56:46,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:56:46,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-26 00:56:46,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-26 00:56:46,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:56:46,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-26 00:56:46,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:56:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:56:46,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:56:46,764 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:56:46,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:46,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323848655] [2022-11-26 00:56:46,765 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:56:46,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105280708] [2022-11-26 00:56:46,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105280708] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:56:46,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1234720871] [2022-11-26 00:56:46,767 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:56:46,767 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:56:46,768 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:56:46,768 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:56:46,768 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:56:46,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:46,806 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:56:46,807 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 [2022-11-26 00:56:46,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:46,816 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 21 treesize of output 26 [2022-11-26 00:56:46,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:46,833 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 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-26 00:56:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:46,869 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:56:46,895 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-26 00:56:46,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 200 treesize of output 199 [2022-11-26 00:56:46,957 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 16 treesize of output 12 [2022-11-26 00:56:47,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:47,015 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-26 00:56:47,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:47,131 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 0 case distinctions, treesize of input 25 treesize of output 20 [2022-11-26 00:56:47,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:47,185 INFO L321 Elim1Store]: treesize reduction 40, result has 42.0 percent of original size [2022-11-26 00:56:47,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 88 [2022-11-26 00:56:47,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 24 [2022-11-26 00:56:47,242 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 16 treesize of output 12 [2022-11-26 00:56:47,355 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-26 00:56:47,385 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:57:09,982 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2393#(and (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ (* ~N~0 4) (- 4) |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (or (not (= |ULTIMATE.start_main_~ret2~0#1| |ULTIMATE.start_main_~ret~1#1|)) (not (= |ULTIMATE.start_main_~ret5~0#1| |ULTIMATE.start_main_~ret~1#1|))) (<= 1 ~N~0) (<= 0 (+ |ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((v_mapavg_~ret~0_BEFORE_RETURN_37 Int)) (= |ULTIMATE.start_main_~ret5~0#1| (ite (<= (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_37 0)) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0)) 4294967296) 2147483647) (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_37 0)) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0)) 4294967296) (+ (mod (ite (and (not (= (mod v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0) 0)) (< v_mapavg_~ret~0_BEFORE_RETURN_37 0)) (ite (< ~N~0 0) (+ (- 1) (div v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0)) (+ (div v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0) 1)) (div v_mapavg_~ret~0_BEFORE_RETURN_37 ~N~0)) 4294967296) (- 4294967296))))) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 1 |ULTIMATE.start_main_~i~1#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= ~N~0 (+ |ULTIMATE.start_main_~i~2#1| 1)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:57:09,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:57:09,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:57:09,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 13 [2022-11-26 00:57:09,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860600305] [2022-11-26 00:57:09,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-26 00:57:09,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:57:09,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:09,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:57:09,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=580, Unknown=3, NotChecked=0, Total=702 [2022-11-26 00:57:09,985 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-26 00:57:10,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:10,079 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2022-11-26 00:57:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:57:10,080 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 31 [2022-11-26 00:57:10,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:10,081 INFO L225 Difference]: With dead ends: 53 [2022-11-26 00:57:10,081 INFO L226 Difference]: Without dead ends: 28 [2022-11-26 00:57:10,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 22.7s TimeCoverageRelationStatistics Valid=125, Invalid=628, Unknown=3, NotChecked=0, Total=756 [2022-11-26 00:57:10,082 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:10,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:57:10,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-26 00:57:10,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2022-11-26 00:57:10,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:57:10,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-26 00:57:10,089 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 31 [2022-11-26 00:57:10,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:10,089 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-26 00:57:10,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 13 states have internal predecessors, (27), 1 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-26 00:57:10,089 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-11-26 00:57:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-26 00:57:10,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:10,090 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:10,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:57:10,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-26 00:57:10,296 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:57:10,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash 281036708, now seen corresponding path program 6 times [2022-11-26 00:57:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:10,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579936105] [2022-11-26 00:57:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:10,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:10,314 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:57:10,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206643832] [2022-11-26 00:57:10,314 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:57:10,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:57:10,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:57:10,316 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:57:10,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3ef3f26-0e7d-4091-8c69-121f65649e58/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-26 00:57:10,428 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:57:10,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:57:10,430 WARN L261 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 125 conjunts are in the unsatisfiable core [2022-11-26 00:57:10,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:57:10,477 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 13 treesize of output 9 [2022-11-26 00:57:12,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:12,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:12,271 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:57:12,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 365 treesize of output 172 [2022-11-26 00:57:34,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:34,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:34,169 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:57:34,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 701 treesize of output 321 [2022-11-26 00:57:42,396 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:57:42,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:42,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:42,446 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:57:42,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 565 treesize of output 321 [2022-11-26 00:57:45,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:57:45,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:45,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:45,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:45,832 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:57:45,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 564 treesize of output 333 [2022-11-26 00:57:52,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:52,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:57:52,964 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:57:52,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 967 treesize of output 442 [2022-11-26 00:58:18,405 WARN L233 SmtUtils]: Spent 20.63s on a formula simplification. DAG size of input: 69 DAG size of output: 49 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:58:29,864 WARN L233 SmtUtils]: Spent 8.69s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:58:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 16 proven. 63 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:58:29,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:59:10,326 WARN L233 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 104 DAG size of output: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:00:45,695 WARN L233 SmtUtils]: Spent 12.38s on a formula simplification. DAG size of input: 147 DAG size of output: 134 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:01:36,967 WARN L233 SmtUtils]: Spent 9.44s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:04:03,351 WARN L233 SmtUtils]: Spent 54.80s on a formula simplification. DAG size of input: 219 DAG size of output: 138 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)