./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 4e7fbc69 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_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/mapavg5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 15:20:13,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:20:13,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:20:13,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:20:13,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:20:13,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:20:13,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:20:13,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:20:13,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:20:13,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:20:13,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:20:13,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:20:13,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:20:13,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:20:13,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:20:13,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:20:13,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:20:13,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:20:13,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:20:13,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:20:13,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:20:13,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:20:13,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:20:13,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:20:13,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:20:13,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:20:13,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:20:13,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:20:13,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:20:13,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:20:13,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:20:13,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:20:13,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:20:13,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:20:13,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:20:13,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:20:13,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:20:13,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:20:13,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:20:13,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:20:13,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:20:13,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:20:13,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:20:13,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:20:13,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:20:13,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:20:13,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:20:13,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:20:13,790 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:20:13,790 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:20:13,791 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:20:13,791 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:20:13,792 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:20:13,792 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:20:13,792 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:20:13,792 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:20:13,793 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:20:13,793 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:20:13,793 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:20:13,793 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:20:13,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:20:13,795 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:20:13,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:20:13,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:20:13,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:20:13,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:20:13,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:20:13,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:20:13,796 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:20:13,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:20:13,797 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:20:13,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:20:13,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:20:13,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:20:13,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:20:13,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:20:13,799 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:20:13,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:20:13,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:20:13,799 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:20:13,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:20:13,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:20:13,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:20:13,800 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_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 407fcf7d2eac351408fa4d5f2ec0e8445116bd56ec588be775b50f5c012c0e01 [2022-11-23 15:20:14,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:20:14,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:20:14,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:20:14,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:20:14,174 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:20:14,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/array-crafted/mapavg5.i [2022-11-23 15:20:17,131 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:20:17,383 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:20:17,384 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/sv-benchmarks/c/array-crafted/mapavg5.i [2022-11-23 15:20:17,390 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/data/1c3339da0/20b29322a0ec4db29c0c54087f781f40/FLAG378af4485 [2022-11-23 15:20:17,404 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/data/1c3339da0/20b29322a0ec4db29c0c54087f781f40 [2022-11-23 15:20:17,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:20:17,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:20:17,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:20:17,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:20:17,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:20:17,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b8be37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17, skipping insertion in model container [2022-11-23 15:20:17,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:20:17,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:20:17,684 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_749a3a0c-798d-4633-b63c-e51ca69d2264/sv-benchmarks/c/array-crafted/mapavg5.i[1383,1396] [2022-11-23 15:20:17,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:20:17,709 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:20:17,748 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_749a3a0c-798d-4633-b63c-e51ca69d2264/sv-benchmarks/c/array-crafted/mapavg5.i[1383,1396] [2022-11-23 15:20:17,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:20:17,765 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:20:17,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17 WrapperNode [2022-11-23 15:20:17,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:20:17,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:20:17,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:20:17,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:20:17,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,819 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2022-11-23 15:20:17,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:20:17,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:20:17,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:20:17,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:20:17,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,867 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:20:17,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:20:17,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:20:17,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:20:17,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (1/1) ... [2022-11-23 15:20:17,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:20:17,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:17,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:20:17,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:20:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:20:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:20:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:20:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:20:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:20:17,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:20:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:20:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure mapavg [2022-11-23 15:20:17,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mapavg [2022-11-23 15:20:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:20:18,048 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:20:18,050 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:20:18,271 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:20:18,303 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:20:18,304 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-23 15:20:18,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:18 BoogieIcfgContainer [2022-11-23 15:20:18,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:20:18,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:20:18,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:20:18,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:20:18,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:20:17" (1/3) ... [2022-11-23 15:20:18,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b4cf81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:20:18, skipping insertion in model container [2022-11-23 15:20:18,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:17" (2/3) ... [2022-11-23 15:20:18,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b4cf81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:20:18, skipping insertion in model container [2022-11-23 15:20:18,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:18" (3/3) ... [2022-11-23 15:20:18,315 INFO L112 eAbstractionObserver]: Analyzing ICFG mapavg5.i [2022-11-23 15:20:18,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:20:18,347 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:20:18,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:20:18,398 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;@4804d537, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:20:18,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:20:18,403 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) [2022-11-23 15:20:18,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:20:18,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:18,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:18,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:18,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:18,417 INFO L85 PathProgramCache]: Analyzing trace with hash -605605805, now seen corresponding path program 1 times [2022-11-23 15:20:18,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:18,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902031845] [2022-11-23 15:20:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:18,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:18,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:18,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902031845] [2022-11-23 15:20:18,599 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 15:20:18,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450996079] [2022-11-23 15:20:18,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:18,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:18,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:18,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:20:18,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:20:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:18,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:20:18,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:20:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 15:20:18,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:20:18,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450996079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:18,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:18,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:20:18,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960001678] [2022-11-23 15:20:18,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:18,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:20:18,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:18,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:20:18,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:20:18,859 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) [2022-11-23 15:20:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:18,914 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2022-11-23 15:20:18,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:20:18,917 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 [2022-11-23 15:20:18,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:18,924 INFO L225 Difference]: With dead ends: 36 [2022-11-23 15:20:18,924 INFO L226 Difference]: Without dead ends: 17 [2022-11-23 15:20:18,927 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 [2022-11-23 15:20:18,931 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 [2022-11-23 15:20:18,932 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] [2022-11-23 15:20:18,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-23 15:20:18,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-23 15:20:18,968 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) [2022-11-23 15:20:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-23 15:20:18,971 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 21 [2022-11-23 15:20:18,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:18,971 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-23 15:20:18,972 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) [2022-11-23 15:20:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-23 15:20:18,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 15:20:18,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:18,974 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:18,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 15:20:19,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 15:20:19,180 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:19,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:19,181 INFO L85 PathProgramCache]: Analyzing trace with hash 300632270, now seen corresponding path program 1 times [2022-11-23 15:20:19,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:19,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331769061] [2022-11-23 15:20:19,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:19,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:19,212 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:20:19,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303371335] [2022-11-23 15:20:19,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:19,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:19,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:19,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:20:19,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:20:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:19,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:20:19,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:20:19,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 15:20:19,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:20:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 15:20:19,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:19,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331769061] [2022-11-23 15:20:19,390 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:20:19,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303371335] [2022-11-23 15:20:19,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303371335] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:20:19,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1588097475] [2022-11-23 15:20:19,418 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 15:20:19,418 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:20:19,423 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:20:19,429 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:20:19,430 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:20:19,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:19,630 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:20:19,632 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 [2022-11-23 15:20:19,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:19,654 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 [2022-11-23 15:20:19,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:19,734 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 [2022-11-23 15:20:19,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:19,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:19,931 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-23 15:20:19,934 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 [2022-11-23 15:20:20,070 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 [2022-11-23 15:20:20,131 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-23 15:20:20,140 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:20:20,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1588097475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:20,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:20:20,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4] total 11 [2022-11-23 15:20:20,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760152066] [2022-11-23 15:20:20,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:20,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 15:20:20,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:20,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 15:20:20,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-23 15:20:20,325 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) [2022-11-23 15:20:20,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:20,527 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2022-11-23 15:20:20,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:20:20,528 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 [2022-11-23 15:20:20,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:20,530 INFO L225 Difference]: With dead ends: 30 [2022-11-23 15:20:20,530 INFO L226 Difference]: Without dead ends: 18 [2022-11-23 15:20:20,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:20:20,537 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 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 [2022-11-23 15:20:20,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 12 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:20:20,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-23 15:20:20,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-23 15:20:20,548 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) [2022-11-23 15:20:20,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-11-23 15:20:20,549 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 22 [2022-11-23 15:20:20,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:20,550 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-11-23 15:20:20,550 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) [2022-11-23 15:20:20,550 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-23 15:20:20,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 15:20:20,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:20,551 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:20,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 15:20:20,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:20,757 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:20,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:20,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1468513756, now seen corresponding path program 1 times [2022-11-23 15:20:20,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:20,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429719269] [2022-11-23 15:20:20,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:20,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:20,794 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:20:20,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051442467] [2022-11-23 15:20:20,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:20,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:20,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:20,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:20:20,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:20:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:20,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:20:20,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:20:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 15:20:20,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:20:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 15:20:20,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:20,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429719269] [2022-11-23 15:20:20,973 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:20:20,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051442467] [2022-11-23 15:20:20,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051442467] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:20:20,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1026813357] [2022-11-23 15:20:20,979 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 15:20:20,979 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:20:20,980 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:20:20,980 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:20:20,980 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:20:21,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:21,030 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:20:21,031 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 [2022-11-23 15:20:21,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:21,048 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 [2022-11-23 15:20:21,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:21,099 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 [2022-11-23 15:20:21,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:21,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:21,196 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-23 15:20:21,197 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 [2022-11-23 15:20:21,250 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 [2022-11-23 15:20:21,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:21,337 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 [2022-11-23 15:20:21,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:20:21,511 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 [2022-11-23 15:20:21,741 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-23 15:20:21,779 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:20:34,469 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 [2022-11-23 15:20:34,470 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:20:34,470 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:20:34,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-23 15:20:34,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736799798] [2022-11-23 15:20:34,470 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 15:20:34,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:20:34,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:34,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:20:34,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=305, Unknown=1, NotChecked=0, Total=380 [2022-11-23 15:20:34,472 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) [2022-11-23 15:20:34,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:34,525 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2022-11-23 15:20:34,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:20:34,526 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 [2022-11-23 15:20:34,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:34,528 INFO L225 Difference]: With dead ends: 33 [2022-11-23 15:20:34,532 INFO L226 Difference]: Without dead ends: 19 [2022-11-23 15:20:34,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=74, Invalid=305, Unknown=1, NotChecked=0, Total=380 [2022-11-23 15:20:34,536 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:20:34,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:20:34,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-23 15:20:34,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-23 15:20:34,547 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) [2022-11-23 15:20:34,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-23 15:20:34,548 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 25 [2022-11-23 15:20:34,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:34,552 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-23 15:20:34,553 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) [2022-11-23 15:20:34,553 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-11-23 15:20:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 15:20:34,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:34,554 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:20:34,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:20:34,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:34,760 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:34,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:34,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1787452129, now seen corresponding path program 2 times [2022-11-23 15:20:34,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:34,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610078149] [2022-11-23 15:20:34,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:34,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:34,792 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:20:34,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470997688] [2022-11-23 15:20:34,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:20:34,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:34,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:34,794 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:20:34,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:20:34,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-23 15:20:34,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:20:34,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:20:34,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:20:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:20:34,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:20:34,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:34,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610078149] [2022-11-23 15:20:34,913 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:20:34,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470997688] [2022-11-23 15:20:34,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470997688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:20:34,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:20:34,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:20:34,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841027016] [2022-11-23 15:20:34,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:20:34,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:20:34,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:20:34,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:20:34,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:20:34,915 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) [2022-11-23 15:20:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:20:34,952 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-11-23 15:20:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:20:34,952 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 [2022-11-23 15:20:34,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:20:34,953 INFO L225 Difference]: With dead ends: 29 [2022-11-23 15:20:34,953 INFO L226 Difference]: Without dead ends: 20 [2022-11-23 15:20:34,954 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 [2022-11-23 15:20:34,954 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 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 [2022-11-23 15:20:34,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 18 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:20:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-23 15:20:34,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-23 15:20:34,960 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) [2022-11-23 15:20:34,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2022-11-23 15:20:34,961 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 26 [2022-11-23 15:20:34,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:20:34,963 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-11-23 15:20:34,963 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) [2022-11-23 15:20:34,963 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-11-23 15:20:34,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 15:20:34,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:20:34,967 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] [2022-11-23 15:20:34,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 15:20:35,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:35,174 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:20:35,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:20:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1336085508, now seen corresponding path program 1 times [2022-11-23 15:20:35,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:20:35,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156517290] [2022-11-23 15:20:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:35,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:20:35,209 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:20:35,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [841371835] [2022-11-23 15:20:35,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:20:35,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:20:35,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:20:35,227 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:20:35,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:20:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:20:35,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:20:35,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:20:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:20:35,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:20:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 15:20:35,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:20:35,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156517290] [2022-11-23 15:20:35,447 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:20:35,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841371835] [2022-11-23 15:20:35,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841371835] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:20:35,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1265049051] [2022-11-23 15:20:35,455 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 15:20:35,455 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:20:35,455 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:20:35,456 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:20:35,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:20:35,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:35,513 INFO L321 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2022-11-23 15:20:35,513 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 [2022-11-23 15:20:35,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:35,549 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:20:35,550 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 [2022-11-23 15:20:35,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:35,577 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 [2022-11-23 15:20:35,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:35,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:35,658 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-23 15:20:35,659 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 [2022-11-23 15:20:35,711 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 [2022-11-23 15:20:35,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:35,808 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 [2022-11-23 15:20:35,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:35,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:20:35,962 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 [2022-11-23 15:20:35,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:20:36,012 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-23 15:20:36,012 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 [2022-11-23 15:20:36,039 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 [2022-11-23 15:20:36,053 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 [2022-11-23 15:20:36,248 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-23 15:20:36,283 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:21:03,263 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 [2022-11-23 15:21:03,263 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:21:03,263 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:21:03,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2022-11-23 15:21:03,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718651563] [2022-11-23 15:21:03,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 15:21:03,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:21:03,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:21:03,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:21:03,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=381, Unknown=3, NotChecked=0, Total=462 [2022-11-23 15:21:03,280 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) [2022-11-23 15:21:03,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:21:03,331 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2022-11-23 15:21:03,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:21:03,332 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 [2022-11-23 15:21:03,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:21:03,334 INFO L225 Difference]: With dead ends: 35 [2022-11-23 15:21:03,334 INFO L226 Difference]: Without dead ends: 21 [2022-11-23 15:21:03,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 27.0s TimeCoverageRelationStatistics Valid=78, Invalid=381, Unknown=3, NotChecked=0, Total=462 [2022-11-23 15:21:03,336 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:21:03,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 19 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:21:03,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-23 15:21:03,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-23 15:21:03,347 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) [2022-11-23 15:21:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-23 15:21:03,352 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 27 [2022-11-23 15:21:03,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:21:03,352 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-23 15:21:03,352 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) [2022-11-23 15:21:03,353 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-23 15:21:03,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:21:03,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:21:03,354 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] [2022-11-23 15:21:03,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 15:21:03,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:03,560 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:21:03,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:21:03,561 INFO L85 PathProgramCache]: Analyzing trace with hash 42151806, now seen corresponding path program 2 times [2022-11-23 15:21:03,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:21:03,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241146606] [2022-11-23 15:21:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:21:03,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:21:03,582 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:21:03,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141190481] [2022-11-23 15:21:03,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:21:03,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:21:03,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:21:03,589 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:21:03,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 15:21:03,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-23 15:21:03,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:21:03,884 WARN L261 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 108 conjunts are in the unsatisfiable core [2022-11-23 15:21:03,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:21:03,937 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 13 treesize of output 9 [2022-11-23 15:21:06,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:06,530 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:21:06,530 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 [2022-11-23 15:21:25,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:25,680 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:21:25,681 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 [2022-11-23 15:21:32,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:21:32,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:32,640 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:21:32,641 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 [2022-11-23 15:21:38,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:21:38,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:21:39,340 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:21:39,340 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 [2022-11-23 15:22:09,504 WARN L233 SmtUtils]: Spent 28.09s 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) [2022-11-23 15:22:19,516 WARN L233 SmtUtils]: Spent 8.52s 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) [2022-11-23 15:22:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 34 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:22:19,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:22:42,575 WARN L233 SmtUtils]: Spent 5.04s 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) [2022-11-23 15:24:30,343 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 [2022-11-23 15:24:30,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:24:30,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241146606] [2022-11-23 15:24:30,378 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:24:30,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141190481] [2022-11-23 15:24:30,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141190481] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:24:30,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1202142815] [2022-11-23 15:24:30,381 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 15:24:30,381 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:24:30,382 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:24:30,382 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:24:30,382 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:24:30,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:30,416 INFO L321 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2022-11-23 15:24:30,417 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 [2022-11-23 15:24:30,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:30,450 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:24:30,450 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 [2022-11-23 15:24:30,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:30,473 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 [2022-11-23 15:24:30,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:30,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:24:30,542 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-23 15:24:30,542 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 [2022-11-23 15:24:30,624 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 [2022-11-23 15:24:30,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:30,697 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 [2022-11-23 15:24:30,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:30,810 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 [2022-11-23 15:24:30,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:24:30,867 INFO L321 Elim1Store]: treesize reduction 45, result has 34.8 percent of original size [2022-11-23 15:24:30,868 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 [2022-11-23 15:24:30,907 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 [2022-11-23 15:24:30,923 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 [2022-11-23 15:24:31,051 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-23 15:24:31,087 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:25:12,107 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 [2022-11-23 15:25:12,107 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:25:12,107 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:25:12,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2022-11-23 15:25:12,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56004733] [2022-11-23 15:25:12,108 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-23 15:25:12,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-23 15:25:12,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:25:12,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-23 15:25:12,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1822, Unknown=7, NotChecked=86, Total=2070 [2022-11-23 15:25:12,110 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) [2022-11-23 15:25:38,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:26:01,002 WARN L233 SmtUtils]: Spent 19.06s 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) [2022-11-23 15:26:25,170 WARN L233 SmtUtils]: Spent 19.39s 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) [2022-11-23 15:26:25,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:25,733 INFO L93 Difference]: Finished difference Result 56 states and 70 transitions. [2022-11-23 15:26:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 15:26:25,734 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 [2022-11-23 15:26:25,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:25,736 INFO L225 Difference]: With dead ends: 56 [2022-11-23 15:26:25,737 INFO L226 Difference]: Without dead ends: 52 [2022-11-23 15:26:25,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 195.6s TimeCoverageRelationStatistics Valid=257, Invalid=2820, Unknown=7, NotChecked=108, Total=3192 [2022-11-23 15:26:25,739 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 47 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:25,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 85 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-23 15:26:25,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-23 15:26:25,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 42. [2022-11-23 15:26:25,756 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) [2022-11-23 15:26:25,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2022-11-23 15:26:25,757 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 30 [2022-11-23 15:26:25,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:25,757 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2022-11-23 15:26:25,757 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) [2022-11-23 15:26:25,758 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2022-11-23 15:26:25,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:26:25,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:25,759 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] [2022-11-23 15:26:25,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-23 15:26:25,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:26:25,963 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:25,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:25,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1697894862, now seen corresponding path program 3 times [2022-11-23 15:26:25,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:25,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064632270] [2022-11-23 15:26:25,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:25,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:25,982 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:26:25,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23938043] [2022-11-23 15:26:25,990 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:26:25,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:26:25,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:26:25,991 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:26:25,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 15:26:26,087 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:26:26,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:26:26,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:26:26,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:26:26,182 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 29 proven. 13 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 15:26:26,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:26:26,274 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 15:26:26,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:26,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064632270] [2022-11-23 15:26:26,275 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:26:26,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23938043] [2022-11-23 15:26:26,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23938043] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:26:26,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1190346325] [2022-11-23 15:26:26,278 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 15:26:26,278 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:26:26,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:26:26,278 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:26:26,279 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:26:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:26,309 INFO L321 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2022-11-23 15:26:26,310 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 [2022-11-23 15:26:26,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:26,343 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:26:26,344 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 [2022-11-23 15:26:26,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:26,384 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 [2022-11-23 15:26:26,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:26,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:26:26,458 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-23 15:26:26,459 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 [2022-11-23 15:26:26,524 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 [2022-11-23 15:26:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:26,597 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 [2022-11-23 15:26:26,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:26,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:26:26,858 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 [2022-11-23 15:26:26,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:26,909 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-23 15:26:26,910 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 [2022-11-23 15:26:26,943 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 [2022-11-23 15:26:26,957 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 [2022-11-23 15:26:27,105 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-23 15:26:27,135 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:26:51,502 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 [2022-11-23 15:26:51,502 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:26:51,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:26:51,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-11-23 15:26:51,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795427014] [2022-11-23 15:26:51,503 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 15:26:51,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:26:51,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:26:51,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:26:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=461, Unknown=5, NotChecked=0, Total=552 [2022-11-23 15:26:51,505 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) [2022-11-23 15:26:51,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:26:51,694 INFO L93 Difference]: Finished difference Result 82 states and 107 transitions. [2022-11-23 15:26:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 15:26:51,695 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 [2022-11-23 15:26:51,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:26:51,696 INFO L225 Difference]: With dead ends: 82 [2022-11-23 15:26:51,696 INFO L226 Difference]: Without dead ends: 64 [2022-11-23 15:26:51,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=104, Invalid=593, Unknown=5, NotChecked=0, Total=702 [2022-11-23 15:26:51,698 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 12 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:26:51,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 74 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:26:51,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-23 15:26:51,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2022-11-23 15:26:51,721 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) [2022-11-23 15:26:51,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 82 transitions. [2022-11-23 15:26:51,747 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 82 transitions. Word has length 31 [2022-11-23 15:26:51,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:26:51,750 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 82 transitions. [2022-11-23 15:26:51,750 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) [2022-11-23 15:26:51,750 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2022-11-23 15:26:51,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:26:51,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:26:51,760 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] [2022-11-23 15:26:51,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 15:26:51,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:26:51,967 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:26:51,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:26:51,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1089884216, now seen corresponding path program 4 times [2022-11-23 15:26:51,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:26:51,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724375408] [2022-11-23 15:26:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:26:51,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:26:51,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:26:51,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1072279105] [2022-11-23 15:26:51,992 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-23 15:26:51,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:26:51,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:26:51,994 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:26:52,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 15:26:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:26:52,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:26:52,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:26:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:26:52,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:26:52,370 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:26:52,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:26:52,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724375408] [2022-11-23 15:26:52,371 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:26:52,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072279105] [2022-11-23 15:26:52,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072279105] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:26:52,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1969104445] [2022-11-23 15:26:52,374 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 15:26:52,374 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:26:52,374 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:26:52,375 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:26:52,375 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:26:52,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:52,417 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:26:52,417 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 [2022-11-23 15:26:52,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:52,431 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 [2022-11-23 15:26:52,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:52,453 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 [2022-11-23 15:26:52,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:52,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:26:52,543 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-23 15:26:52,544 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 [2022-11-23 15:26:52,615 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 [2022-11-23 15:26:52,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:52,693 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 [2022-11-23 15:26:52,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:52,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:26:52,868 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 [2022-11-23 15:26:52,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:26:52,916 INFO L321 Elim1Store]: treesize reduction 45, result has 6.3 percent of original size [2022-11-23 15:26:52,917 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 [2022-11-23 15:26:52,970 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 [2022-11-23 15:26:52,984 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 [2022-11-23 15:26:53,169 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-23 15:26:53,203 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:27:23,416 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 [2022-11-23 15:27:23,416 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:27:23,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:27:23,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 13 [2022-11-23 15:27:23,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771657063] [2022-11-23 15:27:23,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 15:27:23,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:27:23,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:27:23,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:27:23,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=593, Unknown=5, NotChecked=0, Total=702 [2022-11-23 15:27:23,418 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) [2022-11-23 15:27:23,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:23,576 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2022-11-23 15:27:23,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 15:27:23,576 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 [2022-11-23 15:27:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:23,577 INFO L225 Difference]: With dead ends: 68 [2022-11-23 15:27:23,577 INFO L226 Difference]: Without dead ends: 38 [2022-11-23 15:27:23,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=108, Invalid=643, Unknown=5, NotChecked=0, Total=756 [2022-11-23 15:27:23,579 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 31 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:23,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 73 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:27:23,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-23 15:27:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2022-11-23 15:27:23,587 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) [2022-11-23 15:27:23,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2022-11-23 15:27:23,588 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 31 [2022-11-23 15:27:23,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:23,588 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2022-11-23 15:27:23,588 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) [2022-11-23 15:27:23,588 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2022-11-23 15:27:23,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 15:27:23,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:23,589 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] [2022-11-23 15:27:23,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 15:27:23,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:27:23,790 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:23,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:23,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1830588061, now seen corresponding path program 5 times [2022-11-23 15:27:23,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:23,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639082813] [2022-11-23 15:27:23,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:23,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:23,808 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:27:23,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576117225] [2022-11-23 15:27:23,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 15:27:23,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:27:23,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:27:23,810 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:27:23,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 15:27:23,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-23 15:27:23,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:27:23,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:27:23,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:27:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:27:24,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:27:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-23 15:27:24,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:27:24,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639082813] [2022-11-23 15:27:24,136 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:27:24,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576117225] [2022-11-23 15:27:24,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576117225] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:27:24,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1480780178] [2022-11-23 15:27:24,138 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-23 15:27:24,138 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:27:24,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:27:24,139 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:27:24,139 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:27:24,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:24,167 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:27:24,168 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 [2022-11-23 15:27:24,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:24,177 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 [2022-11-23 15:27:24,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:24,193 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 [2022-11-23 15:27:24,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:24,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:27:24,257 INFO L321 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2022-11-23 15:27:24,258 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 [2022-11-23 15:27:24,323 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 [2022-11-23 15:27:24,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:24,387 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 [2022-11-23 15:27:24,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:24,477 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 [2022-11-23 15:27:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:24,529 INFO L321 Elim1Store]: treesize reduction 40, result has 42.0 percent of original size [2022-11-23 15:27:24,529 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 [2022-11-23 15:27:24,573 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 [2022-11-23 15:27:24,584 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 [2022-11-23 15:27:24,697 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 17 for LOIs [2022-11-23 15:27:24,727 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:27:52,226 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 [2022-11-23 15:27:52,226 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:27:52,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:27:52,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 13 [2022-11-23 15:27:52,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804496821] [2022-11-23 15:27:52,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 15:27:52,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:27:52,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:27:52,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:27:52,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=578, Unknown=5, NotChecked=0, Total=702 [2022-11-23 15:27:52,229 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) [2022-11-23 15:27:52,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:27:52,323 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2022-11-23 15:27:52,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:27:52,324 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 [2022-11-23 15:27:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:27:52,324 INFO L225 Difference]: With dead ends: 53 [2022-11-23 15:27:52,324 INFO L226 Difference]: Without dead ends: 28 [2022-11-23 15:27:52,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=125, Invalid=626, Unknown=5, NotChecked=0, Total=756 [2022-11-23 15:27:52,326 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:27:52,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:27:52,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-23 15:27:52,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2022-11-23 15:27:52,332 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) [2022-11-23 15:27:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-23 15:27:52,332 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 31 [2022-11-23 15:27:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:27:52,332 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-23 15:27:52,333 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) [2022-11-23 15:27:52,333 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-11-23 15:27:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 15:27:52,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:27:52,334 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] [2022-11-23 15:27:52,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 15:27:52,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:27:52,540 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:27:52,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:27:52,540 INFO L85 PathProgramCache]: Analyzing trace with hash 281036708, now seen corresponding path program 6 times [2022-11-23 15:27:52,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:27:52,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597718011] [2022-11-23 15:27:52,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:27:52,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:27:52,563 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:27:52,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [441199957] [2022-11-23 15:27:52,564 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 15:27:52,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:27:52,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:27:52,565 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:27:52,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_749a3a0c-798d-4633-b63c-e51ca69d2264/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 15:27:52,663 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 15:27:52,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:27:52,666 WARN L261 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 125 conjunts are in the unsatisfiable core [2022-11-23 15:27:52,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:27:52,707 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 [2022-11-23 15:27:55,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:55,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:27:55,424 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:27:55,424 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 [2022-11-23 15:28:15,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:15,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:15,718 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:28:15,719 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 [2022-11-23 15:28:25,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:25,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:25,912 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:28:25,912 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 [2022-11-23 15:28:31,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:31,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:31,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:31,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:31,637 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:28:31,637 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 [2022-11-23 15:28:41,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:28:41,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:28:41,122 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:28:41,122 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 [2022-11-23 15:29:16,640 WARN L233 SmtUtils]: Spent 29.71s 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) [2022-11-23 15:29:28,571 WARN L233 SmtUtils]: Spent 8.30s 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) [2022-11-23 15:29:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 16 proven. 63 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:29:28,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:30:01,142 WARN L233 SmtUtils]: Spent 7.41s 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) [2022-11-23 15:31:32,202 WARN L233 SmtUtils]: Spent 11.68s 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) [2022-11-23 15:32:15,753 WARN L233 SmtUtils]: Spent 9.90s 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) [2022-11-23 15:34:26,629 WARN L233 SmtUtils]: Spent 45.25s 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) [2022-11-23 15:35:10,234 WARN L233 SmtUtils]: Spent 15.64s on a formula simplification that was a NOOP. DAG size: 146 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)